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Problem Regarding Bios Change from UEFI to Legacy

Question: Problem Regarding Bios Change from UEFI to Legacy

I have hp pavilion p045tx with windows 10 pro. I recently install Ubuntu with windows 10 so for that I convert my bios setting from UEFI to Legacy mode for install third party software like wireless Driver and all in Ubuntu. But after every restart the bios setting change to default and that is to UEFI mode and that will cause an problem of no OS detect. Every time I have to go to bios setting and enable the legacy mode to start my OS. Can anyone suggest me what to do in this case.

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Preferred Solution: Problem Regarding Bios Change from UEFI to Legacy

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Hi,I have PACKARD BELL IMEDIA S2883 with preinstalled Windows 8.1. BIOS is UEFI and i can't fint option to change it to Legacy BIOS. In UEFI it's won't detect legacy boot devices even with Secure boot option disabled and Legacy USB enabled. Is there any way to use standart Legacy BIOS? Any help will be appreciated!











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Answer:How to change from UEFI to Legacy BIOS?

Hi ANONIMNIQ,
 
Could you tell me what your current BIOS version is? Also, could you send me a private message with your Serial Number? I'll see what I can track down for you.
Cory

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Hi,I have PACKARD BELL IMEDIA S2883 with preinstalled Windows 8.1. BIOS is UEFI and i can't fint option to change it to Legacy BIOS. In UEFI it's won't detect legacy boot devices even with Secure boot option disabled and Legacy USB enabled. Is there any way to use standart Legacy BIOS? Any help will be appreciated!










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Answer:How to change from UEFI to Legacy BIOS?

Hi ANONIMNIQ,
 
Could you tell me what your current BIOS version is? Also, could you send me a private message with your Serial Number? I'll see what I can track down for you.
Cory

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How do I go from UEFI to legacy BIOS in a B50-70?The deafult is UEFI I presume.

Answer:How to change from UEFI and legacy BIOS? B50

Hi there, Lenovoman -
 
Thank you for writing in to the Lenovo Forum - happy to have you here today
 
Here?s how:
 
Step 1: Turn on or reboot your Lenovo laptop, hold down F2 shortcut until you see the BIOS screen.  Use arrow keys to highlight Boot tap.
 
Step 2: Highlight Boot Mode, press Enter, swap from "UEFI" to "Legacy Support".
 

 
Step 3: Press Fn+F10 keyboard shortcut, choose Yes, and press Enter to save the boot settings.
 
Update us how it goes.
 
 
 
 
Regards,
 
Tap that kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

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I need to know if it is possible on this machine to change bios to UEFI and secure boot.  If so, some instructions on how to do it would be appreciated.
OS Name Microsoft Windows 10 ProVersion 10.0.15063 Build 15063Other OS Description  Not AvailableOS Manufacturer Microsoft CorporationSystem Name DENSystem Manufacturer Dell Inc.System Model Inspiron 620System Type x64-based PCSystem SKU To be filled by O.E.M.Processor Intel(R) Core(TM) i5-2310 CPU @ 2.90GHz, 2901 Mhz, 4 Core(s), 4 Logical Processor(s)BIOS Version/Date Dell Inc. A04, 11/21/2011SMBIOS Version 2.6Embedded Controller Version 255.255BIOS Mode LegacyBaseBoard Manufacturer Dell Inc.BaseBoard Model Not AvailableBaseBoard Name Base BoardPlatform Role WorkstationSecure Boot State UnsupportedPCR7 Configuration Binding Not PossibleWindows Directory C:\WINDOWSSystem Directory C:\WINDOWS\system32Boot Device \Device\HarddiskVolume2Locale United StatesHardware Abstraction Layer Version = "10.0.15063.502"User Name DEN\Rusty EdwardsTime Zone Mountain Daylight TimeInstalled Physical Memory (RAM) 8.00 GBTotal Physical Memory 7.98 GBAvailable Physical Memory 4.42 GBTotal Virtual Memory 16.0 GBAvailable Virtual Memory 11.2 GBPage File Space 8.00 GBPage File C:\pagefile.sysDevice Encryption Support Reasons for failed automatic device encryption... Read more

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While trying to fix a boot error (0xc0000034) on my laptop I accidentally changed my computer's BIOS from UEFI to Legacy, is there a way to change it back?
The computer is clean so it doesn't matter if it's a method that causes loss of data. I have a bootable USB with windows 10 (maybe 8) on it. At some point I got into the menu for this, but must of the times I just get straight to the BIOS. And when I got to the menu for installing windows, I got the error message "windows cannot be installed on this disk. The selected disk is of the GPT partition style." so I couldn't get past from there anyway
The computer is an MSI GE70 2QE
I can't find a way here to post photos from my iphone (and can't use the computer), but here is what it says on the startup screen of the BIOS. The only options I have from here is either "Delete RAID volume" or "Reset Disks to Non-RAID" (none of which I know what it means)
Physical devices:
ID. Device model. TYPE/STATUS(Vol Id)
0. PLEXTOR PX-256M6. Member Disk (0)
1. PLEXTOR PX-256M6. Error Occurred (0)
4. HGST HTS721010A9. Non-RAID Disk
I know I fucked up and should have done more research before tweaking with this, but the damage is done so I greatly appreciate any help

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Dear Team,I bought a Yoga 720 ? 15IKB (80X7003VUS) with: .- BIOS InsydeH20 Rev. 5.0.- BIOS version 4MCN15WW (v.1.01) I?ve tried to find the way to change the boot mode from UEFI to LEGACY, but I couldn?t find it.I disabled the Secure Boot, the OS optimized defaults, loaded the defaults setting, but after hours trying any combination, I wasn?t able to make the computer let me change the UEFI Boot mode. It?s a kind of ?fixed option?.Perhaps do I have to change from RAID to AHCI and afterwards move on with a system clear install?Thanks in advance.

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Hi, I bought 4 Acer Aspire XC 703 (P/N: DT.SWZEB.001) and there isn't option to change UEFI to Legacy BIOS. Bios version is P11-B1 (06/16/2014) but there isn't update at support web. can you help me? thank you

Answer:How to change BIOS from UEFI to Legacy in Acer Asp...

Hi jalipeix,
 
Check out this FAQ and let me know if this helps you.
 
http://acer.custhelp.com/app/answers/detail/a_id/27072
 
Cory

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Hi guys, I have the Veriton X4620G SFF desktop with Windows 7 Pro 64 so I am wondering if I can change from legacy bios to UEFI? Thanks in advance... John











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Answer:Veriton X4620G change legacy bios to UEFI, possibl...

if your system was with windows 7 from factory, no. you can't update to UEFI.  

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Hi guys, I have the Veriton X4620G SFF desktop with Windows 7 Pro 64 so I am wondering if I can change from legacy bios to UEFI? Thanks in advance... John










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Answer:Veriton X4620G change legacy bios to UEFI, possibl...

if your system was with windows 7 from factory, no. you can't update to UEFI.  

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We are pushing a new image this summer but we need to make boot and file system changes, my boss wants me to automate this process. the goals are to desable legacy in bios, enable UEFI, select PXE,  change UeFI boot order (usb,cd, NIC, Hd) using the Bios configuration tool at command line. I have the config.ini file from the bios. can I make all those changes at once or do I have to reboot in between enable UEFI and changeing the boot order The why: we are moving from MBR to GPT with the new image Win10, and we save time on the boot by disabling legacy. The boss says so. (the short answer) any tips or suggestions welcome.

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We are pushing a new image this summer but we need to make boot and file system changes, my boss wants me to automate this process. the goals are to desable legacy in bios, enable UEFI, select PXE,  change UeFI boot order (usb,cd, NIC, Hd) using the Bios configuration tool at command line. I have the config.ini file from the bios. can I make all those changes at once or do I have to reboot in between enable UEFI and changeing the boot order The why: we are moving from MBR to GPT with the new image Win10, and we save time on the boot by disabling legacy. The boss says so. (the short answer) any tips or suggestions welcome.

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How to Change BIOS MODE from Legacy to UEFI and secure boot state to 'ON' from 'unsupported' in DV6T-6c00 . Can we change BIOS version from 2.1 to higher version. 3. Can we change Hyper V virtualization enabled in windows 10. ORiginally the pavillion came with 7 home edition.

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Hi all, I've been a long-time reader of this forum, but this is my first message. I bought last year a T420 from eBay and promptly installed Ubuntu on the HDD. Last week I bought a Samsung mSATA SSD to reinstall Ubuntu on it and use the HDD as data disk. I took the opportunity to test UEFI and enabled UEFI in the BIOS. The installation was successful but when I plugged it to the dock station I lost the USB connectivity (no USB keyboard or wireless mouse), so I decided to revert UEFI to "legacy" and reinstall it. To my surprise, once I reverted to "legacy" boot I lost the ability to boot from any of the possibilities: the original HDD or even the Ubuntu DVD install media. I've played with all the BIOS options, going back to UEFI boot, and it doesn't even detect now my installation on the SSD  I went yesterday to an official Lenovo shop and they told me it was a software issue and that reverting back to BIOS should be enough, so I downloaded the "BIOS Update Bootable CD" from: http://support.lenovo.com/us/en/downloads/migr-77076 but it doesn't boot either, so I'm really stuck and any help would be greatly appreciated!  Thanks in advance.Pablo

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I had a system crash on my Acer Aspire XC600 with Windows 8.1 installed. It was impossible to use Acer recovery management. I installed Ubuntu. Later I got the Acer recovery CD's. It was impossible to start from CD. I tried to remove Ubuntu, but unsuccessfully. Now Ubuntu does not start anymore. When booting from CD, I get the following error:Pleas boot this recovery disk using legacy BIOS mode. I tried that. After trying again I got this error:Restore Fail: This recovery system can only be used on "UEFI" mode. Please press "OK" to restart system immediately. I read that the solution would be to wipe the HDD, but I don't have a OS to do it with. How can I  Please help.

Answer:Recovery CD fails. UEFI/ legacy BIOS problem

if you still have the Ubuntu installation CD, boot from that and choose to try it Live, instead of installing, once booted run disk manager and completly wipe your HDD, must be with unallocated raw space.Then try again with the recovery cd.If it gives errors again, you must check if the HDD has GPT boot record instead of MBR.

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I purchased a IdeaPad Z580 laptop, with Windows 8.  The current BIOS mode is UEFI, with Secure Boot State = On.  I am trying to setup a dual boot with Linux Ubuntu or Mint?  Is this possible?  Thank you.

Answer:Ideapad Z580 - turn off Secure Boot State, or change to legacy bios and turn off UEFI?

Yes, I have the same question. Can someone help?Many Thanks in advance.

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I know how to change my options from UEFI to legacy but the legacy option isnt coming up. Someone please help me as i need to reboot my laptop.

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As the heading says how to know my Bios has Uefi boot or legacy boot??
 

Answer:Is my BIOS Legacy or UEFI?

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This weekend I will try to do a clean install of Win 10 again, from Win 7. Have to try som new methods to see if I can get my computer running flawlessly with Windows 10.

I will use the clean install tutorials from this forum. I hav two options, with or without UEFI installed?

What about this thing with EFI, UEFI, Legacy BIOS? How much impact will this have on my computer regarding a flawlessly Win 10 setup?

I don't know anything about this, other than UEFI is the newest standard regarding BIOS.

When I look into my boot setup, it says, 1. Boot Device - [EFI Device].
If I open Diskmanagement, this is the picture:
Should I use the tutorial with or without UEFI when I do a clean install?

Answer:EFI, UEFI, Legacy BIOS.......

Your OS seems to be currently installed in Legacy Mode, that means your drive is probably formatted using a scheme called MBR. For Windows to boot in UEFI mode, it required the drive to be formatted using a different scheme called GPT.
If you can, backup the drive and reformat it to GPT if you want UEFI.

As far as the benefits go, Legacy is old, UEFI is new. It's faster, looks prettier while booting :P. Thats pretty much it for the average consumer.

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Hello,

I've installed Windows 10 and Ubuntu using UEFI.
But, now I created a bootable USB for a Linux that does not support UEFI, but only Legacy.
I mean, when I plug the USB to my laptop, the UEFI does not recognize it, only the Legacy BIOS does.
Is it possible to simply proceed to install the other Linux using Legacy mode? Or it will cause problems?

Thanks

Answer:Installing some OS's in UEFI and some using Legacy BIOS

I am never a fan of using dual boot. I have Windows 10 installed on a separate GPT SSD and Linux installed in MBR SSD and run them separately using Boot Menu so they are completely independent from each other.

I did mention in your other thread that dual booting using MBR is preferable which you can set the Windows boot manager and GRUB boot loader separately. The traditional way is Linux override the MBR and took over the booting process for both Windows & Linux. The non traditional way is to put the GRUB Boot loader in its own partition then use Easy BCD to set up the dual boot, this way they are independent so if there's an update/upgrade from either one, you won't break anything. In addition, you'll get a nice GUI dual boot Menu from Windows, not the ugly GRUB.

Here's an example:

GRUB controls the booting process for both Windows and LinuxPut GRUB in its own partition and use Easy BCD to set up dual boot.
NOTE: During Linux installation, you have to tell Linux not to use sda (MBR in Windows) but its own partition.

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Hello,

I've installed Windows 10 and Ubuntu using UEFI.
But, now I created a bootable USB for a Linux that does not support UEFI, but only Legacy.
I mean, when I plug the USB to my laptop, the UEFI does not recognize it, only the Legacy BIOS does.
Is it possible to simply proceed to install the other Linux using Legacy mode? Or it will cause problems?

Thanks

Answer:Installing some OS's in UEFI and some using Legacy BIOS

I am never a fan of using dual boot. I have Windows 10 installed on a separate GPT SSD and Linux installed in MBR SSD and run them separately using Boot Menu so they are completely independent from each other.

I did mention in your other thread that dual booting using MBR is preferable which you can set the Windows boot manager and GRUB boot loader separately. The traditional way is Linux override the MBR and took over the booting process for both Windows & Linux. The non traditional way is to put the GRUB Boot loader in its own partition then use Easy BCD to set up the dual boot, this way they are independent so if there's an update/upgrade from either one, you won't break anything. In addition, you'll get a nice GUI dual boot Menu from Windows, not the ugly GRUB.

Here's an example:

GRUB controls the booting process for both Windows and LinuxPut GRUB in its own partition and use Easy BCD to set up dual boot.
NOTE: During Linux installation, you have to tell Linux not to use sda (MBR in Windows) but its own partition.

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I bought a brand new Sony S series and it was shipped with windows 7 and boots in UEFI mode. I have encryption software I need to install, and it's not compatible with UEFI mode. In my bios I see the option to change the boot mode to legacy, but when I do that and restart the computer I get this message 'operating system not found'. How can I run my computer in legacy mode? Do I have to set the bios to legacy and re-install windows?

Answer:UEFI/Legacy bios issue

1) Install encryption software that supports UEFI.

2) Reinstall in legacy mode.

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so the only way i could figure to boot from media at clean install was to boot from legacy mode.... is there an "easy" way to swap the boot from legacy to uefi? i'm only asking because it takes about 3 minutes to boot from legacy instead of 20 seconds and my ssd drive is missing??













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Answer:Legacy bios boot vs uefi

First of all, which media are you booting from? What is your OS?

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Hello,

Right before I performed a clean install of Windows 8.1 x64 on my Inspiron 3520, I switched to the Legacy BIOS *facepalm*.

When I enter the legacy BIOS and enabled "secure boot", I performed a restart that gave the following message "internal hard disk drive not found, to resolve this issue, try to reseat the drive. No bootable devices--strike F1 to retry boot, F2 enter setup menu, F5 enter PSA". Of course, when I go back into the BIOS and disable secure boot, it reverts back to legacy and boots up Windows 8 just fine. What I'd like to know is, how can I revert back to UEFI so I can change the boot-up option and perform a clean install under UEFI.

Any help would be greatly appreciated! I've found a couple articles but I just want to make sure I'm headed in the right direction and if maybe there is a safer and easier way to get this done...

Making the Switch to UEFI | sepago

https://social.technet.microsoft.com...n-to-uefi.aspx

Answer:Switching from Legacy BIOS to UEFI

UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

4. Press whatever key (ex: F11) it shows to boot to your motherboard's boot menu, and select to boot from the listed UEFI DVD or UEFI USB. (see screenshot below)

Secure Boot

Secure Boot only work in UEFI boot mode, when you enable Secure Boot in your PC's UEFI settings.

Secure Boot protect users from rootkits and other low-level malware attacks by blocking unauthorized (non-signed) executables and drivers from being loaded during the boot process.

Protecting the pre-OS environment with UEFI - Building Windows 8 - Site Home - MSDN Blogs

Secure Boot - Enable or Disable in UEFI

Secure Boot - Confirm Enabled or Disabled in Windows 8

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This computer came with WIn7 and was upgraded to Win10. I would like to make it a dualboot (with Windows as the MBR) with Ubuntu. However, My BIOS is "Legacy" and I already have 4 partitions (the unused space is not usable by Linux). Can this laptop's BIOS be upgraded to UEFI without reinstalling Windows (I want to preserve all my applications and settings in WIndows). If so, can you point me to instructions in detail? If not, recommendations for any alternatives, such as what to do (& how) with the 3 partitions other than WIndows (C: is the main WIndows partition of course; D: is Recovery; I have no idea what the other two partitions are since they do not appear in Explorer and E: is the DVD).

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Whats the Different with Legacy Bios / UEFI ?













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Answer:Whats the Different with Legacy Bios / UEFI ?

As for the questions about UEFI in general - basically, UEFI is a replacement for BIOS. Without going into technical details, the most important difference is that UEFI is 64-bit, while BIOS works in 16-bit real mode. This adds certain amount of latency in the boot process (and resume from sleep) because your 64-bit processor will simulate 286 CPU from the power on all the way until your OS starts booting, only then your OS will switch it in 64-bit mode. New Windows 8 PCs don?t include the traditional BIOS. They use UEFI firmware instead, just as Macs have for years. Rather than have modern PCs wait several seconds for a key press and delay their speedy boot process, you?ll have to access a boot option menu after booting into Windows. 

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Hi,I have a question, since I got my motherboard replaced (on warranty), the BIOS is in the Legacy mode. What steps do I have to go through in order to switch the machine to UEFI mode? My SSD is GPT formated.Thanks for advice!David

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How do you overide BIOS mode (Legacy to UEFI) And how can you tell which one you are in? Thanks in advance, Chef_D

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I have an Aspire M5 that is not bootable.  I ordered and received recovery discs from Acer.  When I boot using UEFI mode, I get the following error message... "Please boot this Recover Disc uusing legacy BIOS mode."  When I boot using legacy BIOS mode, I get this error message... "Restore Fail: This recovery system can only be used on "UEFI" mode.  Please press "OK" to restart the system immediately."  I attached screen shots of both.  My guess is something else is wrong that a recovery disc can't fix.  Any thoughts or suggestions on how to proceed?  Thanks!

Answer:Recovery not working - UEFI vs. Legacy BIOS

you need to completly wipe your HDD before restoring your PC. are you able to reach windows command prompt? (try to press shift+F10 keys at that screen)if so, try this:typediskpartthen on diskpart typelist disktake note of the correct disk ID to erasetypeselect disk x(x is the ID of your HDD to erase)typecleantype exit if not, you can create a bootable USB or CD (boot under legacy) with gparted that will jelp you erase your HDD:http://gparted.org/livecd.php

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I had to go into the BIOS and change the type from Secure Boot / UEFI to Legacy Boot in order to get the firmware program for my SSD to run from a removable USB drive. No big deal, I figured after the firmware is updated, I'll go in to change it back to Secure / UEFI, right?  Wrong.
So, hours later now, I cannot enter the BIOS at all. During the POST screen, I see the "Press F2 for Setup / F12 for Boot Options" and I even notice that the "F2 for Setup" become highlighted/selected after holding the F2 key down. But, instead of going into the BIOS, it goes to a DOS menu in which you can either select the OS or Windows Memory Diagnostic.  
I ended up doing a clean install of Win 10, and disabled fast boot. That didn't help. Then I thought installing Win 7 would fix it. Nope. Same deal; can't get into BIOS.  I did some googling and found one suggestion to press Alt+F2 and all combinations thereof including F8, ESC, DEL etc - no luck.  Another suggestion I tried was removing the CMOS battery / unplugging the SSD / laptop battery in order to force it to a hold POST screen.  What happened then after pressing F2 was lots of beeping and a Boot from PXE menu came up (Bizarre).
Any other suggestions?  I can use Windows but Win 10 doesn't have full functionality without UEFI / Secure Boot enabled. And I'd hate not being able to access the BIOS or boot menu forever.  I hope some Dell expert can help me get in to th... Read more

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We are now migrating from Windows 7 to Windows 10.With windows 7 we were running legacy BIOS. Now with Windows 10 it is UEFI and Secure Boot on all machines before deployment of operating system. I have configured the BIOS settings exactly as i wanted on one machine. (UEFI, Boot Order, Secure Boot Enabled)Then i have used CFGWIN.exe to export my settings to a txt file CFGWIN.exe /c /path:c:\settings.txt Now i want to use this configuration on all other Lenovo computers, without going in to BIOS and change all settings manually. So in my OS deployment i run:CFGWIN.exe /r /path:c:\settings.txt (after that i reboot the computers and continue with OS deployment) But BIOS are not set to UEFI, Secure Boot is still disabled? Please help!

Answer:Update BIOS settings LEGACY to UEFI (ThinkCentre M...

What version of BIOS are on?   Are all the computers on the same? 

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I had to go into the BIOS and change the type from Secure Boot / UEFI to Legacy Boot in order to get the firmware program for my SSD to run from a removable USB drive. No big deal, I figured after the firmware is updated, I'll go in to change it back to Secure / UEFI, right?  Wrong.
So, hours later now, I cannot enter the BIOS at all. During the POST screen, I see the "Press F2 for Setup / F12 for Boot Options" and I even notice that the "F2 for Setup" become highlighted/selected after holding the F2 key down. But, instead of going into the BIOS, it goes to a DOS menu in which you can either select the OS or Windows Memory Diagnostic.  
I ended up doing a clean install of Win 10, and disabled fast boot. That didn't help. Then I thought installing Win 7 would fix it. Nope. Same deal; can't get into BIOS.  I did some googling and found one suggestion to press Alt+F2 and all combinations thereof including F8, ESC, DEL etc - no luck.  Another suggestion I tried was removing the CMOS battery / unplugging the SSD / laptop battery in order to force it to a hold POST screen.  What happened then after pressing F2 was lots of beeping and a Boot from PXE menu came up (Bizarre).
Any other suggestions?  I can use Windows but Win 10 doesn't have full functionality without UEFI / Secure Boot enabled. And I'd hate not being able to access the BIOS or boot menu forever.  I hope some Dell expert can help me get in to th... Read more

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I have a client that will be migrating to windows 10 and is try to find out if systems with legacy/UEFI bios can be switched from legacy to UEFI using HP bios configuration tool through a task sequence which ultimately will install win 10 64 also. Basically can this be totally automated.

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I have lenovo g580. in bios setup under boot tab, it says UEFI boot 'Enabled'. but when i go to cmd and type 'msinfo32', it says my system has LEGACY bios mode. what actually is it? if i have UEFI mode enabled, why it shows legacy in msinfo32? please help........

Answer:BIOS mode-UEFI or Legacy in Lenovo G580?

hi firozmkhatri,
 
According to this FAQ, the UEFI BIOS has to emulate legacy BIOS so that existing applications aren't broken (this means 32bit programs since UEFI only works with 64bit versions of Windows). If you have UEFI enabled under BIOS and see it's saying Legacy under msinfo32, you probably have a Windows 7 system installed on legacy mode as the Lenovo G580 supports UEFI with an emulated Legacy.support.
 
To check if you have Windows installed on UEFI (GPT) or Legacy mode (MBR), check your drive volume:
1. Click Start, right-click Computer and then click Manage
2. On the Computer Management window, choose Disk Managemment
3. Right click on any of the Disk (i.e. Disk 1), choose Properties and on the Volumes tab, see Partition Style
 
Windows with MBR Partition:Spoiler (Highlight to read)
Windows with GPT PartitionSpoiler (Highlight to read)
Reference:
http://forums.lenovo.com/t5/tkb/articleprintpage/tkb-id/[email protected]/article-id/22
http://msdn.microsoft.com/en-us/windows/hardware/gg463149.aspx
 
 
Hope this helps.
 
 

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My son has upgraded Windows 7 32 bit 4gb ram pc to Windows 10 within offer period . He complains about getting this startup nag message option every time he boots up & feels he has already selected Legacy bios to be safe but that message option keeps reappearing every boot up. I only have a win 8 pc & dont get message so cant advise him. Help would be appreciated.

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We are now migrating from Windows 7 to Windows 10.With windows 7 we were running legacy BIOS. Now with Windows 10 it is UEFI and Secure Boot on all machines before deployment of operating system. I have configured the BIOS settings exactly as i wanted on one machine. (UEFI, Boot Order, Secure Boot Enabled)Then i have used CFGWIN.exe to export my settings to a txt file CFGWIN.exe /c /path:c:\settings.txt Now i want to use this configuration on all other Lenovo computers, without going in to BIOS and change all settings manually. So in my OS deployment i run:CFGWIN.exe /r /path:c:\settings.txt (after that i reboot the computers and continue with OS deployment) But BIOS are not set to UEFI, Secure Boot is still disabled? Please help! Sorry Wrong Thread, how do i change?

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Hello, currently I have the upgraded Windows 10 Pro Spanish 32-bit activated from Windows 7 Spanish OEM 32-bit on a 2011 HP ProBook 6550b LATAM which I guess has the digital entitlement since no keys were entered. I would like to clean install & format the drive using the USB Windows Pro 10 media and have 3 questions:

Q1: checking in System Information is says the OS was installed in BIOS Legacy Mode but in the Boot menu there is an option to select UEFI instead. Which one is the best?

Q2: if clean install is done with an English US version instead of Spanish will I loose the activation?

Q3: I tried changing the display & speech language option to English in my current Spanish OS, rebooted several times and get the persistent Windows Search "these results may be incomplete" error after Indexing is completed as reported in other threads while it works fine when reverting back to Spanish display mode. Anybody knows if that bug is solved in the anniversary update?

Thanks!

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Hello, currently I have the upgraded Windows 10 Pro Spanish 32-bit activated from Windows 7 Spanish OEM 32-bit on a 2011 HP ProBook 6550b LATAM which I guess has the digital entitlement since no keys were entered. I would like to clean install & format the drive using the USB Windows Pro 10 media & Brink's Windows 10 - Clean Install tutorial and have 3 questions:

Q1: checking in System Information is says the OS was installed in BIOS Legacy Mode but in the Boot menu there is an option to select UEFI instead. Which one is the best?

Q2: if clean install is done with an English US version instead of Spanish will I loose the activation?

Q3: I tried changing the display & speech language option to English in my current Spanish OS, rebooted several times and get the persistent Windows Search "these results may be incomplete" error after Indexing is completed as reported in other threads while it works fine when reverting back to Spanish display mode. Anybody knows if that bug is solved in the anniversary update?

Thanks!

Answer:Clean install in BIOS Legacy Mode or UEFI?

Q1 - more secure to use UEFI mode if supported
Q2 - clean install should use the same language version (Spanish). I'm unsure if you could use the 64 bit version rather the the 32 bit
version.
Q3 - don't know

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hi folks, do you know how to boot a dvd in legacy-mode (without UEFI)? my lenovo B570 UEFI has very little options, so i assume the other options (e.g. booting in legacy mode) are hidden somewhere. i also found a guide from lenovo for the thinkpad series, but the option (see step 3) clearly is missing with my notebook. any ideas?? thank you very much in advance.. -benni

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Relevance 79.54%

I have an Inspiron 660. Last fall I upgraded Win 7 to Win 10/64.  I was looking at the System Information recently and I noticed that the BIOS mode was set to Legacy.
I see that UEFI is a step up from BIOS.
Is it safe to switch to UEFI after upgrading in Legacy BIOS mode?

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I made the unfortunate error in changing my BIOS boot options to UEFI without having any UEFI set up and now (obviously) my computer won't start, I just receive a blank screen. Can this be changed back so I can go back into BIOS and fix it?prior to this my laptop was not reading any usb.lenovo g50 30 , OS windows 10changed ram, removed hard disk still nothing on display.tried recovery button but nothing happened, 

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===========DELL BIOS==============
In many situation, i have to boot to WinPE in uefi mode with legacy support to repair something
i would like to see the uefi boot line in this picture
but when i create a usb boot with a hiden fat32 partition in my usb, i cant see this line? what wrong with my usbi have try to setup MBR and PBR by bootice but nothing change
can someone teach me how to create 2 hiden fat32 partition to boot in this caseaddition
in legacy mode, i use plop boot manager so i can choose with partition to boot but in uefi i cant do this
i want my laptop can automatically recognize my fat32 partition
thanks

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Relevance 79.54%

===========DELL BIOS==============
In many situation, i have to boot to WinPE in uefi mode with legacy support to repair something
i would like to see the uefi boot line in this picture
but when i create a usb boot with a hiden fat32 partition in my usb, i cant see this line? what wrong with my usbi have try to setup MBR and PBR by bootice but nothing change
can someone teach me how to create 2 hiden fat32 partition to boot in this caseaddition
in legacy mode, i use plop boot manager so i can choose with partition to boot but in uefi i cant do this
i want my laptop can automatically recognize my fat32 partition
thanks

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Relevance 79.54%

I have an Inspiron 660. Last fall I upgraded Win 7 to Win 10/64.  I was looking at the System Information recently and I noticed that the BIOS mode was set to Legacy.
I see that UEFI is a step up from BIOS.
Is it safe to switch to UEFI after upgrading in Legacy BIOS mode?

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Relevance 79.54%

At any point in the future, is a new BIOS/UEFI firmware going to be released that unlocks the selection for "UEFI" on the boot mode? I have an operating system/bootloader that would be better served with the ability to switch to a legacy BIOS style mode as opposed to being locked into UEFI only. Consider this a formal request as well, to include a legacy boot mode in a future release. I know there's quite a few of us who would consider this a very useful change.

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Hey guys, I already tried to post this question on another forum, they tried but then they send me here and maybe you can do something for my problem.
Here is the original thread, https://answers.microsoft.com/en-us/windows/forum/windows_10-performance-winpc/missing-operating-system-cant-boot-after-trying-to/f6a82a4c-533f-4447-af4e-94162c78e45d?messageId=f8ab0de2-f35d-4648-9ba2-fe5bc6bdbb3a
My last question is from yesterday but I still want to try asking you too just to save time eventually.. so in the last one I put interesting info cause I can boot in the windows installation section AND open cmd.

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Hi, I bought a Lenovo Thinkpad Edge E320 with 128GB SSD but without OS. I installed Windows 7 and ubuntu and had issues with dual booting because of the UEFI. So I decided to change from UEFI to legacy mode in bios. After that I cann't enter BIOS any longer. If I press F1 on start I get "Entering BIOS Setup" but the BIOS doesn't open instead immediatly Windows starts. The same with F12 to select the boot drive selection the message appears but the menu doesn't open instead Windows starts. How can I enter again the BIOS or reset the options? I tried BIOS Update with BOOT Cd from Lenovo support site but it didn't help. Thank you for advice Best regards bubbas

Answer:Edge E320, can't enter bios after changing from uefi to legacy mode

Hi bubbas and welcome to the Community,
 
This is a long shot, but take out the hard drive, the battery and unplug the ac adapter and hold the power button down for about 15 seconds.
 
Then plug in just the ac adapter without the battery or hard drive and start the machine and see if you can get into the bios.
 
If you can, reload the defaults and reboot.  See if you can get in again and you might want to check the F12 to see if that works.
 
Dave

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I am a proud owner of an Satellite A500 PSAR9A-02S001
I have been quite happy with it over the years.

However when trying to dual boot I am running into all sorts of problems.

I really need uefi/legacy boot options to be unlocked in the bios menu
I believe this functionality is present
However there are no options to configure it in the bios, please release an update for this.

Please.

It would help me out a lot.
Not too mention all of the other hidden settings in the bios u could also unlock.
I Would really appreciate any help with this

Message was edited by: Bigwheels

Answer:Satellite A500 - BIOS update request - UEFI/legacy boot option

As far as I know Toshiba doesn't offer some BIOS options modification and this is also not a part of BIOS updates.

What kind of problems do you have with dual boot?
What is preinstalled on your machine? Post please some info about exact OS installation.

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Due to the issue with Windows 7 being too dark on the Ideapad S400 (backlight issue), I decided to roll back to windows 8. To install Windows 7 from our deployment server I changed the BIOS to Legacy Support., but then to install Windows 8 I changed the BIOS back to UEFI but now under FI (Boot) only the network card is listed and not the hard-drive. If I roll back to BIOS to legacy then the hard-drive is listed as a boot device. Sound like a bug. I really got the feeling that the BIOS of the Ideapad S400 is a beta. Will Lenovo issue a BIOS update in the near future? This is the worse laptop I've even seen so far!  













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Go to Solution.

Answer:hard-drive not listed in BIOS after changing boot mode from Legacy to UEFI.

hi bthjf1,
 
AFAIK, to see the HDD under UEFI boot on the BIOS, you must install Windows 8 in UEFI (HDD being formatted as GPT).
 
Try to:
1. Install Windows 8 in UEFI as stated in this guide.
2. Boot into the BIOS, press F9 to reset BIOS to default then check if HDD is now listed under EFI boot
 
 
Hope this helps

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Relevance 77.9%

I bought a ThinkPad 540p that comes with preloaded Windows 8.1. As I want to dual boot the machine I tried to select the Legacy Boot option in the BIOS/Startup tab, but I can't do anything as the option UEFI/Legacy Book is greyed out and locked in "UEFI Only". Below it there is an option called: -CSM Support that is also greyed out and selected as [No]. (below  these options there is a little note with an asterisk saying "Unselectable for Secure Boot"). How can I enable the UEFI/Legacy Boot option again in order to dual boot the computer? I want to be able to boot from USB or from the CD Drive.   Thank you very much for helping me out!     













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Answer:Unable to select UEFI/Legacy Boot in BIOS / Startup - ThinkPad T540p

Hello and welcome,
 
I'm not sure where it is in your BIOS (security tab maybe) but there should be an option to turn off secure boot.
 
Z.

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The problem started when i changed to legacy mode when windows installation started giving me trouble.What i think would fix the problem is to either change back to UEFI mode from windows, or to get in the BIOS menu somehow..Does anyone know how to do either of those things? any other ideas are more than welcome

Answer:z580 can't access bios setup or boot menu after changing to Legacy from UEFI mode

Anyone? u_uI was under the impression this community contained some Lenovo experts..

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Relevance 73.39%

I have an Acer V3-731. Owner's nephew somehow put W-8 Enterprise on.
Received a complete set of Recovery CDs from Acer.
I want to do a complete recovery, no data.
First CD, "System" started and said needed UEFI

The BIOS is set

Security
Supervisor Password-Clear
Secure Boot Mode-Standard
(Only "Set Supervisor Password" is operable)

Boot
UEFI
Secure Boot disabled

Booting from the "System" CD, I get as far as "Restore Operating System to Factory Defaults"

Next window says "Please boot this Recovery Disc using Legacy BIOS"

When I change the Boot to Legacy, it tells me I can only use UEFI.

Is this something to do with the Enterprise on this PC?

Answer:8 Enterprise Legacy-UEFI problem doing Acer recovery

Is this something to do with the Enterprise on this PC?



NO, you need to clean the HDD.

Reset the UEFI/BIOS back to UEFI & Secure Boot ENABLED.

To clean install:
1) Clean the HD Drive, using Step one in this tutorial:
SSD / HDD : Optimize for Windows Reinstallation - Windows 7 Help Forums
than
2a) Clean install with the OEM manufacturer's Recovery Disk.

2b) Clean Install - Windows 8

2c) UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with
Using Acer Recovery DVD:
ICONIA W510,how to reinstall windows 8 with recove... - Acer Community

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Relevance 73.39%

I'm new to Legacy and UEFI terminology, so please go easy...

Dell XPS15 with Samsung 840 250GB SSD (replaced original mechanical drive) + 32GB mSATA drive (still present). It was set up to boot from UEFI when the Dell technician installed the OS on the new Samsung drive. Am I correct in saying the mSATA drive is not being used at present as the new Samsung SSD replaced the original mechanical drive?

Problem: Today I've wiped the 250GB SSD and installed W8.1. Problem is I installed it in Legacy mode as I couldn't get the W8.1 DVD to boot in UEFI mode. I think this was a mistake. I thought I could switch it back later from legacy to UEFI. The laptop will not boot now in UEFI.

Is there any way to switch back to UEFI for faster booting? I have a macrium reflect image of the new install, or would this just use Legacy again?

Is a complete reinstall needed, this time in UEFI mode and via USB?

Thanks
Ian

Answer:Installing W8.1 - Legacy vs. UEFI - Dell XPS15 - Problem!

You need to install as UEFI. The DVD will boot as UEFI, just select it with that designation in the Boot Device Menu then make sure and hit a key if it is necessary. If you get a message about the SSD being the wrong configuration, you may have to remove all the partitions on the drive in the partition selection window so it can be configured as GPT.

You may want to set the system back to a Secure Boot configuration so it won't even show the legacy boot devices.

The 32 GB drive was the acceleration drive for the HDD and you do not need it when using an SSD. It did not have software installed, but was being used as a cache for the HDD.

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Hi all,

Currently having a wake on lan issue with a certain computer.

The machine is setup correctly but the windows boot information is stored in a 100mb UEFI partition, and when the computer wakes on lan, it will not boot windows, just sit at a blank screen.

When it wakes on lan it is trying to boot from the legacy device (same blank screen happens if you choose to boot from it from bios)

ive tried updating the bios but no luck, all settings seem to be as they should be.

Is there some trick to get it to load the UEFI MBR, or is there a safe way other then reformatting the machine to move the MBR over to the legacy device itself?


Thanks for any help.

Answer:Boot UEFI from wake on lan, or convert UEFI MBR to legacy.

Back up your files, unplug all other HD's and peripherals,

Boot into BIOS setup to enable Legacy BIOS. Next check BIOS Boot order for an EFI Boot Disk: remove it, set DVD drive first to boot, HD second. Then set SATA controller to AHCI. Save changes and Exit.

Then boot into installer DVD or flash stick burned or written using tool and latest ISO for your licensed here.

At first installer screen Press Shift + F10 to open a Command Box, type:

DISKPART
LIST DISK
SEL DIS 0 (after confirming Windows 7 target HD #)
CLEAN
CONVERT MBR
CREATE PARTITION PRIMARY SIZE=102400 (for 100gb partition, adjust as desired)
FORMAT FS=NTFS LABEL="WINDOWS 7"
ACTIVE
EXIT
EXIT

Next click Install Now to Clean Install Windows 7 to the partition you created. If it fails then report back at which step and the verbatim error message.

In addition read over these steps to understand the tools and methods which work best to get and maintain a perfect Clean Reinstall - Factory OEM Windows 7. The steps are the same for retail.

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Relevance 72.16%

After running MBR2GPT on my system with a successful completion, I realized that I don't know how to change the BIOS from legacy to UEFI, resulting in the inability to boot the GPT'ed system. I was running Windows 10 Creator on an MBR system using an MSI H61M-E23 (version 2) motherboard. I made the mistake of thinking that setting the boot mode to UEFI would be easy - I tried setting the first boot device to UEFI, but that did not work. The system does not boot - all I get is a blinking cursor. Any help would be appreciated.

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Relevance 71.75%

How to change from legacy mode to UEFI mode in ACER ICONIA W700?As I change to  legacy mode accidently in bios

Answer:How to change from legacy mode to UEFI mode in ACE...

windows logo button + power to enter BIOS from power offleave both buttons after 1 secondonce in BIOStap on BOOTon Boot type, choose UEFIclick on EXIT, exit saving changes

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I built my computer from parts I ordered from Amazon, and installed Windows myself. I didn't fathom the differences between GPT and NTFS, and just picked NTFS format for my installation. I've since discovered that Secure Boot isn't possible without bios being in UEFI mode, which I believe requires your OS to be installed on a GPT drive (someone correct me if I'm wrong about that). I know that when I tried just changing it from Legacy to UEFI in bios and rebooting, I ended up in a shell program with no inkling of how to get my machine to boot. Fortunately I was able to discover how to get out of the shell and back into bios, to change it back.

So, how difficult would it be for me to get my system switched around so that I could enable Secure Boot?

If I make a disk image of my boot drive, which is currently NTFS partitioned, can I reformat it as GPT and then restore using that image?

Answer:I installed with NTFS and legacy bios, how hard to change?

secureboot supports ntfs

to use secureboot you need X64 software, UEFI and GPT partitions

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Relevance 69.7%

Hi EightForum!
I have some question on how to change my BIOS into UEFI. I tried to flash a UEFI BIOS file attached on Acer website but it wont start flashing. The latest version of UEFI installer is not responding when I want to flash it, the older version said I need to have the same type of BIOS installed. Any suggestion how to install UEFI on my system?
Thanks in advance

Answer:How do I change my BIOS into UEFI

My guess is that that BIOS is not UEFI compatible, like it said you have to have right version of MB to do that.

13 more replies
Relevance 68.88%

Hi, I'm trying to use the Lenovo scripts to change the BIOS on my M900z desktops to UEFI. Everything in the script runs, but the settings do not change. Here's the script, as take from Lenovo's site. Here's the script... On Error Resume NextDim colItemsIf WScript.Arguments.Count <> 3 Then    WScript.Echo "SetUEFI.vbs [setting] [value] [password + encoding]"    WScript.QuitEnd IfstrRequest = WScript.Arguments(0) + "," + WScript.Arguments(1) + "," + WScript.Arguments(2) + ";"strComputer = "LOCALHOST"     ' Change as needed.Set objWMIService = GetObject("WinMgmts:" _    &"{{ImpersonationLevel=Impersonate}!\\" & strComputer & "\root\wmi")Set colItems = objWMIService.ExecQuery("Select * from Lenovo_SetBiosSetting")For Each objItem in colItems    ObjItem.SetBiosSetting strRequest, strReturnNextWScript.Echo strRequestWScript.Echo " SetBiosSetting: " + strReturnIf strReturn <> "Success" Then    WScript.QuitEnd IfSet colItems = objWMIService.ExecQuery("Select * from Lenovo_SaveBiosSettings")strReturn = "error"For Each objItem in colItems    ObjItem.SaveBiosSettings WScript.Arguments(2) + ";", strReturnNextWScript.Echo strRequestWScript.Echo " SaveBiosSettings: " + strReturn Here are the parameters, which I am guessing at because I can find no reference for the BIOS settings. The link on the Lenovo webpage is dead, or broken. cmd... Read more

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Relevance 67.24%

Asus G73sw Laptop that I have used every day for the last 2 years.

So, I got the message: "Reboot and Select Proper Boot Device, press any key" so I tried another working HDD that has windows 7 on it; same message. I took apart the computer and checked the connections and cables. One time, during the constant restarts with other HDDs, I got the message "A Disk Read Error Occured." When I entered the BIOS menu, It recognized the HDD. Also, on the Easy Flash, I could see that HDD and its files.

Finally was able to load windows with UEFI mode. I am unaware what this is, but I assume it will work for now?? I have made no updates to windows 7, installed no drivers or programs recently, and am unsure why BIOS won't load any of my HDDs to windows, when BIOS clearly sees it.

Can anyone help me with this issue?

Thanks
 

Answer:Help: Can't boot from BIOS, Needed to change to UEFI, on computer I use every day!

so I tried another working HDD that has windows 7 on it;Click to expand...

OK, you cannot take a hd with windows already installed and put it in another system then expect it to boot. Not going to happen unless the two systems have very similar or identical hardware.
Finally was able to load windows with UEFI mode.Click to expand...

This allows windows boot mgr to take over the boot process. This is not the only difference; there are many. UEFI uses GPT table, can address larger hd, and a lot more. Here is an article that explains uefi in more depth;
http://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface
 

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Relevance 66.01%

Since a few weeks my X220 is not able to make any changes to the  UEFI/BIOS settings. When trying to do so either any changes get silently ignored or I get one of the following error message while trying to save.  Security - Failed to save storage: Setup. Status: 0x9 Security - Failed to save storage: PwdStatusVar. Status: 0x9 Security - Failed to save storage: LocalSecurityVars. Status: 0x9 Didn't find anything on those errors here or on the web, unfortunately. This is with UEFI 1.19, unfortunately this problem even prevents me from upgrading to the latest release (this is a linux-only system, so no Windows-tools, also I had UEFI-only enabled in the settings when this happened, so the Update-CD won't boot). Also I had some parts of the hardware disabled when this started to appear, so can't reenable them anymore, which is pretty bad as you might imagine. Three notes:*) there is one exception to not being able to save, I can successfully set (and remove) a supervisor password, but that's all*) After the UEFI tries to save the settings there's a hang for 2-3 seconds, don't know if this is related.*) The time from pressing the power button until the X220 reaches the boot loader is significantly longer since this effect showed up Anyone got a clue what these errors are actually about? I thought about pulling the BIOS/UEFI battery and trying to force a reset of the settings that way. Is this safe or a bad idea?


... Read more

Answer:X220 - Can't change UEFI/BIOS settings anymore, locked out of update

Are you able to press F9 to load default settings and then F10 to save and exit?  Or does this result in the same errors?

7 more replies
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Question: UEFI or Legacy?

So i went for a clean Windows 10 installation on my Aspire E13.
To boot from USB i had to switch from UEFI to Legacy, otherwise the USB drive would not be listed.

However. After the installation was finished my touchpad was not even recognized, i mean, i was not even listed in the device manager, so i read somewhere on the Acer forum that switching back to UEFI would solve this problem.
Well, i switched back to UEFI and now when the laptop start i recieve a message that says -No bootable device found!

Even if i try to use my bootable USB drive, the list is empty.
So i switched back to Legace again and guess what. Windows 10 starts like there was no problem.

So, what's the different between UEFI and Legacy? The bios tells me -Use UEFI on Win 8 and above to use all the benefits.
And why oh why can't i boot up from a existing and working Windows 10 drive using UEFI?

Answer:UEFI or Legacy?

Since you installed Windows under Legacy mode, you would have to run Windows in Legacy Mode. As you have found out, changing it after the fact will not allow you to boot.Boot to UEFI Mode or Legacy BIOS mode
You can create a Bootable UEFI Windows USB Flash drive with Rufus in my signature How to Create UEFI Bootable Windows USB Drive

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Question: UEFI or Legacy?

Hello,

I have just finished making myself a decent gaming rig and im on the last step at the moment; which is installing Windows 7. I have noticed that when trying to install Windows on my pc there's two option: one is Legacy and the other is UEFI, and since I'm not really and expert when it comes to such things, I decided to postpone the installation process until I figure this out. So, which of these should I choose as an installation method? I'd really appreciate it if someone could help me with that. Thank you!

Answer:UEFI or Legacy?

UEFI has some advantages over BIOS,such as:

Faster booting
Support of 128 logical partitions
Support for disks which have a size of over 2.2 TB
Support for Legacy BIOS

Since your desire is gaming,install with UEFI. There's no reason to go with BIOS unless you have old hardware.

This tutorial shows you how to install Windows in UEFI:
UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with

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Question: UEFI VS LEGACY?

I inquired on another forum about what graphics card would work best on my Optiplex 360 and he mentioned to make sure I didn't have a UEFI - Legacy conflict between the bios and the graphics card I want to put in. https://www.amazon.com/ViewMax-NVIDIA-GeForce-Express-Support/dp/B00WNO327Y/ref=sr_1_2?ie=UTF8&qid=1486619989&sr=8-2&keywords=gtx+750+ti+1gb Can someone explain this to me?

Answer:UEFI VS LEGACY?

Somebody told you a new graphics card might not work on an old computer due to a conflict with the legacy BIOS?Never heard of that. Has anybody?A more likely  issues is if the old machine has the one  PCIe slot for a modern graphics card. Well, it does. But look here:QuoteThe problem is that the PCI-E slot on the 360 Motherboard is very close to the CPU fan enclosure whereas most of the graphics cards I've looked at are double width and as such, are too wide to fit.That was found on another forum. Look at your machine and see if the card will bump into the CPU fan.

12 more replies
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Question: UEFI/Legacy

I am not a happy camper with Windows 8.
I am confused with the Legacy and the UEFI boot methods. The reason I am confused I think, is because I read to darn much on the Internet. One bit of confusion is with respect to changing from UEFI to Legacy. It would appear from some comments that if I do that, Windows 8 won't boot anymore. I would have to change back to UEFI for indows 8 to boot. I also read that changing back to UEFI could be a major problem when trying to access the BIOS. No, I am confused. My ultimate goal is to set my laptop up to dual boot Windows 8 and Ubuntu. Like I have been doing for the last multiple years with XP and Windows 7.
Helpful comments would certainly be appreciated.

]Dell Inspiron 5721
Windows 8
Intel i7 @ 1.9 GHz
BIOS Version ? Dell Inc. A06 2/22/2013
SMBIOS ? 2.7
BIOS Mode ? UEFI
Secure Boot State ? On
Memory ? 8 GB[/QUOTE]

Answer:UEFI/Legacy

I don't quite understand what UEFI is, it is firmware, or is it Microsoft's new Boot GUI? I've set my systems to boot Legacy mode, and since I did that, I have no trouble getting into Safe Mode.

Does UEFI access your BIOS as well? That's what I'm worried about. The idea of not being able to access the BIOS from outside Windows 8 makes me itch. I think the Legacy Menu may allow that though - You can set it to Legacy, and if you can't access the Bios, then you can switch it back. I forget the command lines to set it, but they are in a tutorial here. It's BCDedit.

4 more replies
Relevance 64.78%
Question: UEFI or Legacy?

So i went for a clean Windows 10 installation on my Aspire E13.
To boot from USB i had to switch from UEFI to Legacy, otherwise the USB drive would not be listed.

However. After the installation was finished my touchpad was not even recognized, i mean, i was not even listed in the device manager, so i read somewhere on the Acer forum that switching back to UEFI would solve this problem.
Well, i switched back to UEFI and now when the laptop start i recieve a message that says -No bootable device found!

Even if i try to use my bootable USB drive, the list is empty.
So i switched back to Legace again and guess what. Windows 10 starts like there was no problem.

So, what's the different between UEFI and Legacy? The bios tells me -Use UEFI on Win 8 and above to use all the benefits.
And why oh why can't i boot up from a existing and working Windows 10 drive using UEFI?

Answer:UEFI or Legacy?

Since you installed Windows under Legacy mode, you would have to run Windows in Legacy Mode. As you have found out, changing it after the fact will not allow you to boot.Boot to UEFI Mode or Legacy BIOS mode
You can create a Bootable UEFI Windows USB Flash drive with Rufus in my signature How to Create UEFI Bootable Windows USB Drive

4 more replies
Relevance 64.78%
Question: UEFI VS LEGACY?

I inquired on another forum about what graphics card would work best on my Optiplex 360 and he mentioned to make sure I didn't have a UEFI - Legacy conflict between the bios and the graphics card I want to put in. https://www.amazon.com/ViewMax-NVIDIA-GeForce-Express-Support/dp/B00WNO327Y/ref=sr_1_2?ie=UTF8&qid=1486619989&sr=8-2&keywords=gtx+750+ti+1gb Can someone explain this to me?

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Relevance 64.78%
Question: legacy vs uefi

 Hi all, First of all I'm a new Lenovo user and realy love the hardware! I have however a strange behaviour with UEFI on my new T540p. At least I think this is strange behavour for UEFI. When I set the boot mode to UEFI it takes 8-10sec longer to boot than when I set it to legacy mode.The difference in time is located between pushing the power button and the actual starting of windows. Loading windows itself takes equal time in both modes.   Latest Bios version is installed and all other bios settings are the sameBy my knowledge UEFI should be faster to boot... Any one else noticed this behaviour and or has a solution for it? Many thanks 













Solved!

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Answer:legacy vs uefi

Are you using UEFI only or autodetect?

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Hi, I just purchased the HP x360 Spectre, which came with Win 10 Home and UEFI/SecureBoot turned on. The boot disk is GPT. Also, there are 4 partitions on the drive out of the box, as listed in the : EFI SystemRecovery PartitionRecovery ( D: )Windows ( C: ) This is my first Windows above 7, and the first that is not Legacy BIOS and MBR boot disk, so I'm a little lost with all this. I need to backup the drive before making changes to the new laptop using my Macrium Reflect Win7-based PE USB pen drive, but when I disable SecureBoot and enable Legacy Boot and move USB key to the top of the boot list, it boots Reflect under PE OK, but no drives are shown in Reflect to back up. I'm not sure at this point if this is because Version 5 of Reflect doesn't support UEFI (although I'm not sure that's a factor as I've booted), or some other factor resulting from UEFI and GPT. I know Reflect V5 can backup GPT drives, as I do it now, but have only imaged MBR drives. There are newer version of Win PE; Ver 4 based upon Win 8, and Ver 5 based upon Win 8.1, which might solve my problems. I'm trying that next. If anyone has any insight, it would be much appreciated. Also, are UEFI and BIOS connected in some way to MBR and GPT, so that one requires the other, or can you mix and match. For example, could I have machine using UEFI and an MBR boot drive, or vice versa? I'm just not sure what, at this point, is making my drives not appear in Reflect. Also, is there a way to conver... Read more

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My system: acer v5 471p-6843
windows 8 64 bit
So basically I was messing with my bios settings and I changed it to uefi to legacy and when I restart it it says no operating system with that pxe
When I try to boot into bios via f2, f12 , esc , del all of them don't work. Now I'm stuck unable to boot into bios. I made a recovery USB for win 8 but it doesn't give me a boot into firmware option. So I have no idea how to get back into bios to set it to uefi again

Answer:Uefi to legacy mistake :(

Bear with me.

Does it boot into Windows ?

Or some screen with a message & goes no further ?

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Hello, first of all thanks for taking time helping me with my issue.

That`s the case:

I wanted to recover an Image-Backup done with a Backup Software, but the Boot-CD does not Boot on my PC. I have an Windows 10 64-Bit System.

While trying i found out it does indeed boot when i change the Bios from UEFI to Legacy.

If i recover the Image in Legacy-Mode and after that i change it again to UEFI - will Windows boot up or will there be Problems?

Is there any way to make the Boot-CD work also on UEFI?

Thanks in advance.
 

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How do you install windows?
Uefi or Legacy
I currently have installed Windows 10 Legacy
Really is better uefi
It's worth it
My bios has secure boot
And is enabled by default
If my system is mbr (not Uefi)
Should I disable secure boot?
Is it really worth installing uefi system partitions gpt?
What do you think
 

Answer:UEFI or Legacy for my Windows 10 PC?

UEFI is the replacement for the older BIOS

If you have a new PC/laptop most likely the system boots up using UEFI. Older PC/laptop comes with the legacy BIOS. However, for backward compatibility, many today's PC/laptop comes with both.

Microsoft tablets (like my MS SP3 and SP4) are exceptions for they ONLY come with UEFI.

Also, if I'm not wrong, Secure Boot is for UEFI only. You'll need to disable Secure Boot if you switch to using the BIOS. Read below

Secure Boot Overview

Having both is an advantage. One example is booting up of TAILS OS from a USB stick. TAILS OS is still using the older BIOS for this purpose and it's not supported by the UEFI for now
 

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My XPS 8700 originally came with Windows 7 Pro, 64.  I since upgraded to Windows 10 Pro, 64.  I only now noticed that BIOS is setup for Legacy.  If I attempt to setup for UEFI MY drive is not recognized.  A check shows that the drive is setup for MBR.  I thought all XPS 8700's came setup for UEFI.  Am I stuck with Legacy or can the new drive be setup for UEFI???

Answer:XPS 8700 Legacy or UEFI?

I'm not 100% sure but I think UEFI requires drives to be partitioned GPT.
Remember, backup your Data.
www.thewindowsclub.com/convert-mbr-to-gpt-disk
And don't forget to backup your data. The conversion will format the drive.

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Hello, first of all thanks for taking time helping me with my issue.
That`s the case:
I wanted to recover an Image-Backup done with a Backup Software, but the Boot-CD does not Boot on my PC. I have an Windows 10 64-Bit System.
While trying i found out it does indeed boot when i change the Bios from UEFI to Legacy.
If i recover the Image in Legacy-Mode and after that i change it again to UEFI - will Windows boot up or will there be Problems?
Is there any way to make the Boot-CD work also on UEFI?
Thanks in advance.

Answer:Question on UEFI/Legacy

Originally Posted by SadikIslami Is there any way to make the Boot-CD work also on UEFI? Generally on newer laptops/pc's you have to change BIOS to legacy to enable CD boot.
I see no problems in changing back to legacy after recovering the image.

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Hi everyone, I'm trying to set up a dual boot on my X220, but can't seem to get it working.I tried to follow the tutorials available on ThinkWiki about SSD partitions and optimization, but it didn't work.Also, I'm a bit confused between MBR and GPT, and UEFI and LEGACY, and Syslinux and Grub.From what I read, it seems we're supposed to use GPT partitions with UEFI boot, which is what I'm trying to set up. Have any of you successfully set up a dual boot Linux (Arch) + Windows (7 home) on SSD and HDD?If so, could you give me the options you chose for partitioning and boot? I'm thinking about a UEFI boot with GPT partitions.For Linux, / (root) and /home on the SSD, and var on the HDD.For Windows, I don't know. Should I install the whole OS on the SSD, and give it access to a DATA partition on the HDD? I'm aware my post doesn't provide much information about my issues, but what I'm looking right now is a configuration that is known to be working on the X220, and on which I can focus my work. Also, the configuration should minimize the number of read and write on the SSD. Thank you 

Answer:Dual Boot on SSD + HDD: MBR/GPT? UEFI/LEGACY?

I'm not too used with uefi machines, but what I'm doing usually is to install grub at the start of the linux partition, not on the mbr (say  on /dev/sda3 not on /dev/sda) then I use easybcd (from windows) to add the linux partiton (and any other OS) to the standard win7/win vista bootloader.

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My system has several drives, two of which are 4TB drives. The two 4Gb drives are using GPT partition schemes. However, I'm booting off of a 240GB SSD which is using a MBR scheme.

When I installed my current motherboard, I did a fresh install of Windows 7. I didn't know much about UEFI, except that I hate it. Now I discover that there is an option to boot in legacy mode. I know in linux I can convert an existing system from UEFI to legacy mode by changing the EFI partition.

My question is, can I convert an existing Windows 7 install FROM UEFI TO legacy mode? If so, how?

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Say I install Windows as Legacy, can I later change it to UEFI? Or doing so will require another clean install? Thanks.

Answer:Changing a Legacy system to UEFI

For UEFI disable Legacy in BIOS, boot the Win7 DVD as a UEFI device. This change means the old install won't boot and needs to be deleted along with all other partitions to force the installer to change the HD format to GPT format - be sure to unplug all other HD's first.

So for UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums. For install via flash stick special steps must be done from UEFI Bootable USB Flash Drive - Create in Windows

Or to Bypass UEFI to Install WIn7 for a normal MBR install.

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Hello,I just purchased an E5-575-34xf which is scheduled for delivery in the upcoming days.The computer comes with no OS preinstalled. I downloaded an ISO file of Windows 10 from Microsoft and used Rufus to create a bootable USB key which I will use to install it.However, in order to do so, I need to know wether the computer uses UEFI or Legacy mode booting, since they require different settings when creating the USB drive.If anyone could answer that question, it'd be really helpful.Thanks.

Answer:E5-575, UEFI or legacy when installing Win10 from ...

UEFI

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hi, i purchased an acer computer es1-432, i want to install windows 10 with usb drive, in bios i can't find the uefi and legacy mode.The BIOS is "InsydeH20 Setup Utility"V1.07I can't update the bios because there is no system.  

Answer:acer es1-432 no uefi or legacy option

hey aydo download rufus usb tool to install window it has option to install window in GPT partition using UEFI bios so you dont have to change your bios to LEGACY use this tool and select the GPT partition scheme for UEFI and then click on diskdrive to select your iso mage of windows and press start and disable secure boot in your bios or place usb on top most priority to boot from usb to install windows.

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My wife has an Aspire V-5 431 that she blew up a year ago. Not a common model, the model was built for Amazon to distribute to employees, they changed their minds and sold them all on Woot. I bought two and have been really happy with them. The machine came with Win 8 on it and was working great till she killed it. She gave it to a friend, instead of telling me (argh), to fix and they put win 7 pro on it. Not what I wanted, but what they did. She let the kids use it and now it is so infected that I just want to start over from scratch. I ordered the recovery discs from Acer and now I have a problem. When I put the system disc in and try to boot from the disc the first thing that happens is I get an error that the recovery process must be run in UEFI mode and the process stops.  I go in and change to UEFI from Legacy, start process over. Now I get to the screen to select a language, Engilsh, then the recovery menu comes up asking if I want to reinstall the OS or do a complete reset to factory settings.  Regardless of which option I choose, I get a message telling me that this process must be run in Legacy mode. I am frustrated and perplexed. Does this have to do with the OS on the machine not being the origianl? I really don't know. I consider myself pretty tech savy, but this seems to be above my level. If anyone can offer some help I'd be very grateful. Thanks, Joe













... Read more

Answer:Recovery confusion UEFI or Legacy

you need to completly wipe your HDDhttp://www.partitionwizard.com/partition-wizard-bootable-cd.htmldownload the .iso filethen use a software to burn CD/DVD and burn the .iso fileonce done, put the CD/DVD on your desktop, boot from CD (maybe you need to boot under Legacy)at the desktopselect your HDDright click on your HDD icon and choose delete all patitions and click on yes and then applyhttp://www.partitionwizard.com/help/delete-all-partitions.html#howtothen exit partition wizard, boot to BIOS, set UEFI and boot from the erecovery media

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If your PC or laptop supports UEFI and legacy mode then the following tips may help you. Legacy enabled:If the bios setting is legacy enabled then hard drives and USB devices will normally boot.  If you are using two independent hard drives that are not connected by boot manager then the UEFI boot hard drive will always boot first before the legacy hard drive unless the bios allows you to change the boot priority. Legacy disabled (UEFI mode):If the bios setting is legacy disabled then only UEFI devices will boot.  You may run into no hard drive selection menu, no boot option menu or Boot Device not Found followed by a message Hard Disk (3f0). USB flash drives boot considerations:If you wish to boot up a USB flash device using Windows 7 repair, Windows 8 repair, Windows 7 or Windows 8 installation media then be sure to create the flash drive formatted as FAT32.  You may notice a bootable flash drive showing twice in the boot menu, one marked UEFI and one not marked UEFI.  Both will boot up. The popular MS Windows 7 USB WIndows installation media creation tool will create a NTFS flash drive using a Windows 7/8 iso file in NTFS format which is not bootable in UEFI mode. It works fine in legacy mode.  To get around the NTFS issue, create the flash drive in NTFS then copy the contents to your hard drive, quick format the flash drive to FAT32 and then copy back the contents back to the hard dr... Read more

Answer:Boot UEFI or Legacy ---- tips

Thank you for this sir.   I have legacy enabled and I still can't boot from the DVD ROM even when I press f(9).  I have secure boot turned off.  Anyone know what the problem is?  

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HI Everyone,
I need a clarification on whether or not what happened to me will be problematic in the future..
So I have a lenovo y50-70 which I upgraded to windows 10 from windows 8.1, then used a usb with windows 10 on it to do a clean install. However, when I did the install I had to change from UEFI to legacy (though looking back I realized I don't think I needed to do that and could boot from usb via pushing f12, but it's too late for that now). So I changed to legacy, changed the boot order, and was able to boot and do a clean install of windows 10....
Now I was trying to change it back to UEFI but my SSD doesn't show up at all under UEFI and only under legacy, even if I try to push f12 when it's booting up in UEFI mode there are no drives listed (just network boot options). I've gone into bios and tried changing a lot of different things to see if I could get my boot drive to pop up under UEFI but no luck. So as of right now, I can only boot in legacy mode.
NOW, I'd rather not do a complete reinstall again, so my question is if it matters that I'm booting from legacy? If it doesn't matter and won't negatively affect me later, then I'm not going to bother... But if it will cause me some headaches down the road, then I want to know if I can change it back to UEFI without doing a new clean install.
I hope my explanation makes sense... Thanks for the help.

Answer:Windows 10 UEFI/LEGACY question

Originally Posted by real0395 HI Everyone,
I need a clarification on whether or not what happened to me will be problematic in the future..
So I have a lenovo y50-70 which I upgraded to windows 10 from windows 8.1, then used a usb with windows 10 on it to do a clean install. However, when I did the install I had to change from UEFI to legacy (though looking back I realized I don't think I needed to do that and could boot from usb via pushing f12, but it's too late for that now). So I changed to legacy, changed the boot order, and was able to boot and do a clean install of windows 10....
Now I was trying to change it back to UEFI but my SSD doesn't show up at all under UEFI and only under legacy, even if I try to push f12 when it's booting up in UEFI mode there are no drives listed (just network boot options). I've gone into bios and tried changing a lot of different things to see if I could get my boot drive to pop up under UEFI but no luck. So as of right now, I can only boot in legacy mode.
NOW, I'd rather not do a complete reinstall again, so my question is if it matters that I'm booting from legacy? If it doesn't matter and won't negatively affect me later, then I'm not going to bother... But if it will cause me some headaches down the road, then I want to know if I can change it back to UEFI without doing a new clean install.
I hope my explanation makes sense... Thanks for the help. If you use UEFI, you can enable Secure Boot which supposedly makes the OS more secur... Read more

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We need to use Legacy boot for a PXE imaging system.  This Elitedesk 800 G2 will not keep the Legacy Support Enable and Secure Boot Disable setting through a restart.  We have searched and tried many options found on this forum and elsewhere (several days worth of time) to no avail.  We have gone from BIOS 2.05 to 2.12 to 2.13 with no change in symptoms.  We have even taken out the SSD and put in an imaged HDD and not been able to keep the setting.  In all of this, under the Boot Options, both UEFI and Legacy are checked, but grayed out so neither can be unchecked (options under UEFI can be changed and saved).We have reset to factory defaults many time, Cleared the Keys, turned off and on many other options, created the admin password, and many other things found on this forum and elsewhere, including of all things, the HP manual.  Somehwere, they have to have a way around this.  What good is a device that is so secure, that the IT department can't even manage it? 

Answer:Both Legacy and UEFI are checked, but are grayed out and nei...

Hi: I have the older 8200 Elite CMT, and in the BIOS's boot order menu you can use the F5 key to turn UEFI boot order completely off, and then just legacy mode exists for booting. Maybe you can do the same thing with yours... The setup guide for your model is vague.  It just states:  UEFI Boot Order...default is enabled.  If that is the case then there must be a setting to disable it.  

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Hi Everyone,
What settings should we only user and why when imaging a computer? 
F12 should be Boot mode is set to UEFI:
Secure Boot: On
Legacy or UEFI
Sata Operation: AHCI or RAID (why RAID if I only have 1 SSD).

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I have disabled the secure boot option and enabled the Legacy boot option which allows me to boot from USB stick. However, UEFI takes precendence over Legacy boot and I don't want that. For a little school project that we are running we want to run the educational OS Sugar on Stick(on a USB stick) to run straight from the stick instead of kids pressing 3-4 different buttons to get to that.  In short, I want to change boot priority from UEFI first to Legacy. Let me know how to do it? Whether its possible or not? If not, then I don't need these 4 laptops that I ordered and I will return the laptops. Thanks a lot in advance. -Ritesh

Answer:UEFI vs Legacy Boot order

Follow these instruction on how to properly disable secure boot:http://support.hp.com/gb-en/document/c03653226

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Hello sir I have recently installed windows 8.1 on my Lenovo g500s in legacy mode but now i want it to boot from uefi mode. Can i change boot order from legacy to uefi without reinstalling windows or losing data? Plz sir help me figure this out because
legacy mode boots very slow.

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and if so, will it perform slower? Or only boot time will be affected? Any other disadvantage of doing so? Thanks

Answer:Can Windows 8.1 be installed as legacy MBR? (Non-UEFI)

Yes, it can. I have 8.1 on a older Toshiba Satellite U205-S5057 laptop. I doubt UEFI makes any difference as far as performance goes.

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So my computer is a Windows 8 Laptop, with UEFI on it..... I want to have Legacy instead of UEFI, and I was told on this site that I could do it, but I needed to reinstall Windows 8..... Any help with this?

Answer:Switching Windows 8 from UEFI to Legacy

Why would what do that?

You would need to buy a Windows 8.1 DVD.

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Went into BIOS - disable UEFI is greyed out - clearly i am missing something - how do i disable UEFI?

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Hi, My comany is purchasing HP EliteDesk 800 G2, some comes with HDD and some with SSD.We deploy Windows 7 x64 using SCCM using legacy boot. On a machine with HDD installed I can configure the boot options to use legacy boot, but when I replace the disk to a SSD drive the only boot option for this drive is UEFI.That causes the deployment to fail because the drive need to be partitioned as GPT.On the other hand, if I disable legacy boot, PXE boot to UEFI and partition the disk as GPT, after the image deployment the disk is unable to boot with 0xc000000d error (I imagine the cause is Windows 7 support becuase it does work on Windows 8.1). Bottom line, I can install Windows 7 on a HP EliteDesk 800 G2 only if legacy boot is enabled and I partition the disk as UEFI.Is there any way of forcing the SSD to boot as legacy and not UEFI?Is this issue caused by the workstation or is it enforced by the SSD? thanks.

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Okay, my graphics card, Nvidia GT650 is not ready for UEFI installation and I have no way to flash the bios. If I boot using legacy bios, install the card, then can I flash the card BIOS and then return to UEFI booting?

The card is currently not installed and I have no other system to use to flash the cards bios. TIA!

Answer:UEFI to Legacy for graphics card installation

Did some research and it appears after you disable UEFI, in order to install the card, you can then reboot and enable UEFI and it will reconfigure the UEFI with the new card.

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