Computer Support Forum

Disable Secure Boot and enable legacy mode

Question: Disable Secure Boot and enable legacy mode

Hi, I have a bios version 7 on me pc and I dont have a update for a bios 8.I really need to disable secure boot and enable legacy mode but I dont have that option.Is there a way or a trick that I can do this?

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Preferred Solution: Disable Secure Boot and enable legacy mode

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Answer: Disable Secure Boot and enable legacy mode

@Siemen,Did you system originally have WIN 7, as listed here? If so, the BIOS is correct at rev 7. You can not use the newer UEFI graphic cards because there is NO update BIOS available. Your correct, you do not have a way to disable secure boot and enable legacy. In another post you asked, and got no answer.Yes, the GTX 660 will work, with an adequate new PSU. Recommend EVGA GTX 600 and Corsair CX600 PSU. On the GTX 750Ti inquiry, only chance would be the Hybrid vBIOS cards. PSW<> The GTX 670's are a tad touchy.

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it was windows 7 but now is windows 10 but please help me .

Answer:How to disable secure boot and enable legacy pls help

@AllAroundGaming? System, one of:"Hp pavilion h8-1230" (6)  Based on the following:HP Pavilion HPE h8-1230 Desktop PC Product SpecificationsandHP and Compaq Desktop PCs - Motherboard Specifications, M3970AM-HP (Angelica2) See the following document for the explanation:HP and Compaq Desktop PCs - BIOS Settings for the Angelica and Angelica2 Motherboards Section BIOS > Security Menu When you see a Post that helps you,Inspires you, provides fresh insight,Or teaches you something new,Click the "Thumbs Up" on that Post. Fixed / Answered? Click that post Accept as Solution to help others find Answers.

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I have repeatedly attempted to reboot after disabling UEFI Secure Boot but it simply defaults back to what it was before. I have the latest BIOS firmware AMI Version 80.52 installed but the problem existed prior to this update. I upgraded from Windows 8.0 to Windows 10 when Microsoft made it available for free installation but I did create an HP Recovery set prior to this. This I have used in attempt to restore the Pavilion 500-141ea back to its factory state but it has been an absolute waste of time because this has made no difference and I still cannot enable Legacy mode when I wish to use it. Please can someone offer a solution to this frustrating issue ... and for those that may question why I need the Legacy mode option, I like to try out Live Disc Linux Distros occasionally, some of which will not boot from the DVD drive!

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Answer:How to disabled secure boot and enable legacy

Hi, Shutdown the notebook. Tap away at the esc key as soon as you press the power button to enter the Start-up Menu and then select the Bios Menu ( f10 ). Under the System Configuration tab, expand the Boot Options Menu. Here you should find the option to set Secure Boot to Disabled and Legacy Devices to Enabled. When done, press f10 and select to save the changes. You may then have to enter a 4 digit pin displayed on the screen to confirm the setting changes ( note that you will not see a display of the numbers as you enter tham ) - enter the code and hit enter. Regards, DP-K

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I am trying to install Windows 7 from a DVD to an HP 19-2113w All-in-One with Windows 8.1 as the factory install. I have entered the BIOS, turned off Secure Boot, restarted, and entered the code to confirm that I want to disable Secure Boot. Upon restarting and going back into the BIOS, Secure Boot shows it is "Disabled." HOWEVER -- when I then go into the boot options and try to enable the legacy boot devices, it gives me a message saying "You must disable Secure Boot before you may configure this option." As I previously stated -- Secure Boot shows "Disabled" when I check under the security tab.  How much more disabled can it get?  Am I missing something here?  Is there any other way to install Windows 7 from a DVD onto this computer?

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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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I had to buy a new (SSD) HD and had trouble booting from a disc until I enabled Legacy Mode and disabled Secure Boot in BIOS. Boot orders in both UEFI and Legacy are the same, with DVD Rom set to boot first. Also, the settings for IPV4 and IPV6 are set to IPV4 (Legacy) when they were once set to BOTH IPV4 AND 6 and are unable to be changed, if that's important. Now whenever I boot up I always get a "No Boot Device Found" message until I hit "Enter" at which point i'm allowed entry into my precious Win10 laptop.  I disabled Legacy in BIOS, but then i get a different "No Boot Device Found" error, and hitting "Enter" doesn't help. Could some kind person tell me how to correct this, and possibly why it happened and the differences in each option? I'll settle for how to correct this, though, with much gratitude.  MUCH gratitude. GN

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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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Hello,
My Dell computer did not boot anymore. Nothing seemed to work, so I went to a friend and copied the emergency disk on a USB drive. The drive seems to work as it installs windows 10, but if I leave it in when it finished installing, it will do it again. I tried taking it out, and the black screen showed a blue window with little balls circling and the words getting ready. Well, I waited quite a while and nothing happened.
So, I started searching the web (I also have a Mac computer) and people seemed to say that I should change the booting bios and disable secure boot. I went into the bios, or so I think, but clicking on f12 at restart. I went to boot but I saw no secure boot in the choices.
I am at a loss here. I haven't used my dell since February, as that is when I had the problem. Then life happened and I did not get back to it till now.
I would appreciate some help if at all possible.
Thanks
Dalila

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My notebook originally on Windows 8 but changed to Windows 7 ultimate which I have had no problems with for years, till the other day when entering my password I kept receiving error username and password incorrect. I am now getting error no boot drive found error 3F0. I have done a diagnostic test on hard drive and it passed. I have a Windows 7 ultimate disk but cannot get it to install. I have read that I need to enable Legacy Support but am unable to do this as I am cannot choose yes at the prompt, arrow keys do not move from the no position. Is there something else I can do or should be doing to get this to enable. Thanks

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Ok im about to upgrade to win 10 then do a clean install afterwards of win 10, but i wanted to assure i have everything correct before i start. I updated again my profile with Belarc to assure i have a completed list of my software, i notice this Boot mode uefi with secure boot disable, here im a rookie. I have an Alienware Aurora R4 desktop, do i have to go into bios and change secure boot to enable? I read lots of articles but cant simplify with my dumb brain what to do at this stage, appreciate any help.

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how to enable legacy mode in e1-510  (Z5WE3).

Answer:Ask your question here...how to enable legacy mode...

first of all you need to update BIOS at least to 2.11, this is the link for 2.12http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_2.12_A_A.zip?acerid=635677775458144547&S... once you updated to 2.12, you will find an option on BIOS to enable Legacy mode.

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Laptop: Lenovo Yoga 2 11 Booting only UEFI mode On tab 'Security":Security Boot <ENABLE>   /* i can set to ENABLE, but it back to DISABLE */Secure Boot Mode <Custom> On tab Boot:_DISABLED_ Menu itemBoot Mode <UEFI> those I can't select it and change "Boot Mode" to <Legacy Support> But loaded with usb stick that has a folder with the /BOOT .uefi file (but there is only memtest) BIOS updated to V1.93, InsydeH20 Setup Utility, Rev 5.0 I read that in some laptops it needs to close the pins and/or a line audio controller.I opened the bottom cover but nothing like my opinion is not found. How to make available to change the Boot Mode <UEFI>?How to enable "Legacy mode" booting? Tnx for attention and any advises/idea

Answer:Lenovo Yoga 2 11 How to enable "Legacy mode" booting?

Hi CatRovacer, Welcome to Lenovo Community Forums! Please try these settings in BIOS, in order.Exit Tab : Change OS Optimized Defaults to [Other OS]Security Tab:  Change Secure Boot to [Disabled]Boot Tab : Change Boot Mode  to [Legacy Support]                  : Change Boot Priority to [Legacy Only]  After changing the settings, press F10 (Save and Exit). Now try it again on Boot Menu if you're going to be able to boot.  Hope this helps!

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BIOS Security Page displays:Secure Boot ENABLEDSecure Boot Status DISABLEDI have attempted to ENABLE Secure Boot multiple times but Secure Boot Status remains DISABLEDThis problem occured after BIOS Upgrade to v3.07 I have Lenovo G510 LaptopWindows 8.1BIOS Version 79CN48WW (v3.07) I have tried the recommended solution of "Reset to Setup Mode" and "Restore Factory Keys".This did not solve the problem, Secure Boot Status still indicates DISABLED. Please suggest an alternative solution to this problem.

Answer:Secure Boot Status: DISABLED. Cannot enable Secure Boot via BIOS.

I have this issue now after disabling to update BIOS. How do we get Secure Boot Status enabled in BIOS?

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I have a Dell XPS 8700 that failed Windows 10 anniversary update until UEFI secure boot was turned off. It apparently then completed but I cannot re-enable secure boot without the same boot problem advising
Recoveryyour pc/device needs to be repaired / during Windows 10 anniversary updateAn unexpected error has occurredError Code 0xc0000185you'll need to use recovery tools.   Is there a solution to enable UEFI secure boot ?
 I am using a Dell XPS 8700 pc with an SSD drive. The Windows 10 update was installingthen after one of the reboots the error above  The pc was running prior to the update and had UEFI OS , secure boot enabled,  no prior problems.I attempted to do any of the safe mode boots but none would proceed.Disabling the UEFI safe/secure boot mode apparently let the install continue and the das it did before with I believe completion of the installation of Windows 10 anniversary update.PC now shows Windows 10 home Ver 1607 ..
The problem returns if I enable UEFI secure boot and the PC stops. I would like to determine a wayto locate the problem or issue. related to the secure boot.  Using the media creation tool may justrepeat the problem once secure boot is re-enabled.
 Dell lists that they have tested XPS 8700 with this update and have not indicated problems no mention of secure boot issue.

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I have a Dell XPS 8700 that failed Windows 10 anniversary update until UEFI secure boot was turned off. It apparently then completed but I cannot re-enable secure boot without the same boot problem advising
Recoveryyour pc/device needs to be repaired / during Windows 10 anniversary updateAn unexpected error has occurredError Code 0xc0000185you'll need to use recovery tools.   Is there a solution to enable UEFI secure boot ?
 I am using a Dell XPS 8700 pc with an SSD drive. The Windows 10 update was installingthen after one of the reboots the error above  The pc was running prior to the update and had UEFI OS , secure boot enabled,  no prior problems.I attempted to do any of the safe mode boots but none would proceed.Disabling the UEFI safe/secure boot mode apparently let the install continue and the das it did before with I believe completion of the installation of Windows 10 anniversary update.PC now shows Windows 10 home Ver 1607 ..
The problem returns if I enable UEFI secure boot and the PC stops. I would like to determine a wayto locate the problem or issue. related to the secure boot.  Using the media creation tool may justrepeat the problem once secure boot is re-enabled.
 Dell lists that they have tested XPS 8700 with this update and have not indicated problems no mention of secure boot issue.

Answer:XPS 8700 needed UEFI secure boot disabled to complete Windows 10 anniversary update can't enable UEFI secure boot now

rdubayah,
If your computer was running WIndows 10 without any issues prior to downloading the Anniversary update, then you would not have had to change any settings in the bios to install the update.The UEFI and Secure Boot settings are to enable booting with a USB or DVD to install Windows.
Disable Legacy Boot Mode and Enable UEFI
Start the computer and TAP the F2 key to enter the bios. Once in the bios Press F9 to Restore the bios to the Default Settings. F10 to save changes and exit. You could have a hardware problem. To run a hardare diagnostics on the computer you would start the computer and TAP the F5 key. Insert a cd/dvd in the optical drive for running the diags.

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Hello Lenovo Forum!This is driving me mad. I bought a SATA-to-USB3 Adapter to connect my SSD and HDD from my old computer and boot from them (I want to use the Linux on it). Yet I can't figure out how to do that. Secure Boot is off, Legacy Boot is on and yet - everytime I choose the drive in the boot menu, the screen goes black, there is a short drive access, and then I'm back at the boot device menu. I don't really know what to try now. Reimaging like most other threads here suggest doesn't help in that case because it's not a simple installation medium. What I tried aswell: Attaching the Adapter via a USB2-hub to check if there might be an issue with USB3 support. When plugged into my friends X230, both drives boot up perfectly fine and he can use them just fine. Any kind of help is highly appreciated.Kind regards,Iriya EDIT: Here the BIOS Options which I think are somewhat useful:Config TabUSB UEFI BIOS Support - Enabled (Tried turning it off, didn't helpSecurity TabSecure Boot: DisabledPlatform Mode: User ModeSecure Boot Mode: Standard ModeStartup TabUEFI/Legacy Boot: BothUEFI/Legacy Boot Priority: Legacy FirstBoot Mode: QuickRestart TabOS Optimized Defaults: Disabled

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how to enable legacy boot on HP Pavilion m6 1045dx  Entertainment

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I have a Thinkpad T430u and I am unable to get a bootable USB flash drive to boot. I have made the bootable drive in PowerISO, I have used Window's tool, and I have also tried the following (suggested on these forums): "Create another flash drive with a single FAT32 partition using DISKPART in a command windows:  list disk, select disk, clean, create partition primary, format fs=fat32 quick, assign. " But that didn't work either. Nothing I have done has allowed me to boot to the USB flash drive. The flash drive isn't the problem, because I can boot to it on my other computers. I have turned UEFI/legacy boot to both, as well as to Legacy only, and that doesn't help. I have turned off secure boot, and that didn't help either. I have searched a lot and tried everything out there.. but nothing works. I even bought a USB DVD drive to test and see if I could boot to a burned DVD and that didn't work either. I am able to reach the BIOS settings as well as the boot device menu, but the only options available are ATA HDD and PIC Lan boot.. the flash drive never shows up as an option. I have moved USB HDD and USB FDD to the top of the boot order in bios but that doesn't help either. Any suggestions? BTW I have tried Windows 7 and 8 ISOs, as well as a Linux distrubtion and various bootable partition utilities.. I even tried Lenovo's own UEFI diagnostic created with Lenovo's bootable USB generator.. nothing will boot.

Answer:Thinkpad T430u can't boot to USB or DVD.. It's not UEFI/Legacy or Secure boot

Had the same issue. Tried on another T430u, and did the same. Defaulted Bios and checked that secure boot was desabled. It booted from the USB drive straight away.

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My hard disk is broken but the computer can't boot from my new replacement hard drive.  I have checked the Bios setting and the legacy boot option is locked.  I disabled secure boot but it still doesn't allow  me to enable legacy boot.  I downloaded the updated BIOS .exe (sp70481.exe) file from HP website but I am not sure if I can flash the BIOS using that file.  Is there anyway that I can enable the legacy boot option so that I can boot from my hard disk?  I appreicate any advise and suggestion.  Thank you.

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I'm having HP all in one 18-5120in model desktop pc it is  windows8.1 os preloaded pc, now i want to install windows7 in it for that  i have tried to change legacy boot to enable in bios..but there is no option for me to change legacy boot enabled in bios..there is only secure boot enable/disable...what can i do please any one help me to solve this issue... thank you

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Hello! Is there a way of enabling legacy boot mode in HP ProBook 470 G4? The options in the UEFI allow only for changing SecureBoot from enabled to disabled. What I need is to boot from a USB key with Linux or from a DVD with Windows 7. Thanks for your help. Amos

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I have been attempting to Enable Legacy boot and Disable Secure boot on this machine for a few days now.  My current BIOS version is N01 2.15.  It is the oddest thing.  I am able to make some changes, save and have them succesfully change...but I cannot get legacy to enable and save.  Steps I have taken: - Cleared Secure Boot Keys - Reset- Selected Legacy Support Enable and Secure Boot Disable - Reset- Go back to BIOS --> Boot Options -->Attempt to Uncheck UEFI Boot Order (Unable to) --> Check to see if Legacy Boot is available and its a no go- Then I go back to the secure boot options and verify that none of my changes saved.  I am attempting to get these machines to PXE boot to grab our company's image, but I need Legacy boot enabled to do it.  After several attempts to get Legacy to enable I resolved to just try to PXE boot BUT can't do that as well as it says the "selected boot image did not authenticate."  Of course the fix I found for this was enable Legacy Boot....which I can't do. I tried a different method and still no different results. - Updated BIOS to V 02.15- reset back to factory settings in the main menu- back into bios, set password --->reboot- back into bios disabled bootable devices usb and cd rom - went to secure boot options and selected in the drop down "enable legacy and disable UEFI boot" -->reboot- back to bios to the check box next to legacy in the boot options menu ... Read more

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I have been attempting to Enable Legacy boot and Disable Secure boot on this machine for a few days now.  My current BIOS version is N01 2.05 11/11/2015.  It is the oddest thing.  I am able to make some changes, save and have them succesfully change...but I cannot get legacy to enable and save.  Steps I have taken: - Cleared Secure Boot Keys - Reset- Selected Legacy Support Enable and Secure Boot Disable - Reset- Go back to BIOS --> Boot Options -->Attempt to Uncheck UEFI Boot Order (Unable to) --> Check to see if Legacy Boot is available and its a no go- Then I go back to the secure boot options and verify that none of my changes saved.  I have tried rolling the Bios Version back to 2.04 but that didn't make any difference so I put 2.05 back on it. I am attempting to get these machines to PXE boot to grab our school district's image, but I need Legacy boot enabled to do it.  After several attempts to get Legacy to enable I resolved to just use our Win7 Ent disk BUT can't do that as well as it says the "selected boot image did not authenticate."  Of course the fix I found for this was enable Legacy Boot....which I can't do.  I have looked through the forums and found a few possible solutions, but none of them have worked.  Please help!













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Answer:BIOS Refuses to Enable Legacy Boot

Thank you for the reply.  I ended up doing the following, which worked finally(not sure why):- Updated BIOS back to V 02.05- reset back to factory settings in the main menu- back into bios, set password and ownership tag as needed by the school district i work for--->reboot- back into bios disabled bootable devices usb and cd rom (as is school district tech policy)- went to secure boot options and selected in the drop down "enable legacy and disable UEFI boot" -->reboot- back to bios THIS TIME the check box next to legacy in the boot options menu was available.  I checked the box and was also able to uncheck UEFI boot -->reboot- f12 to PXE boot and like magic it finally worked Again, this is very similar to the process I tried in the begining the only difference was the amount of reboots it took to get it accomplished.  I did have a similar issue with another 800 G2 and no matter what I did it would not PXE boot so I rolled the bios version back to 02.04, restored factory settings and did the process I just oultined above.  AND IT WORKED on that machine.  It is an inconsistant issue we are having with the 50 or so 800 G2s our district purchased this last month.   In any case we are able to get these machines to PXE boot using one of the two methods I just mentioned.  So we're good for now.  Thanks again for your reply.

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Hello, I am having an issue with downgrading to Windows 7 and It's not nearly as easy as normally installing an OS. I get to the expanding files screen, and once the system reboots it goes back to the Windows 7 install screen. This is an issue, because it should continue with the installation. Does anybody know why this would occur or how to fix it? I'm sure there's likely something I missed. This is rather urgent, so any help would be appreciated.

Answer:Cannot Downgrade to 7 Legacy Enabled, Secure boot disabled

Hi there

At the reboot have you removed the installation media -- it might be re-booting again from the install media.

Cheers
jimbo

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Just bought a Dell Optiplex 7010 Mini-Tower with Win 8 Pro 64-bit, 8 GB RAM, 500 GB hard drive and an Intel i5 3470 processor. Right now, it has Dell BIOS version A16.

It is normally in UEFI ON and Secure Boot ON, so that F12 on bootup (one-time boot options) does NOT normally show the CD-DVD as a boot option. OK - no problem.

However, if I reboot with F12 and select both UEFI OFF (meaning Legacy ON) and Secure Boot OFF and reboot, then F12 DOES show me the CD-DVD as a boot option, but if I actually try to boot up from a bootable CD, I get an error message.

I have practiced with two bootable CDs - a Knoppix and an Aomei Backupper, both made on earlier machines. Both these CDs work as boot-up CDs in my old XP machine, and the Aomei Backupper CD also worked in someone else's Win 7 Pro 64-bit machine.

What's wrong?

Again, please let me repeat that I am trying to boot from the CD-DVD AFTER I have turned OFF UEFI, turned ON Legacy and turned OFF Secure Boot.

Thanks.

Answer:No Legacy boot from CD-DVD - UEFI and Secure Boot are OFF

https://www.404techsupport.com/2013/...all-windows-7/

But if you're using those settings, Windows 8 will not start.

Here is more info: Legacy BIOS Boot Mode (installing using the MBR partition style) and UEFI Boot Mode (installing using the GPT partition style): link

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Hey all I have a Touchsmart 15-d087ca. I was going through the steps to fix my phone (which is currently stuck in fastboot mode), and one of them was to disable secure boot. So I selected the disable secure boot option, but didn't enable legacy boot, which may have been an incredibly stupid thing to do. I'm not sure if this is the cause of the problem, but it seems likely. I have to admit I'm not an expert when it comes to computers. Upon pressing f10 to save changes and restart, the computer turned off, and then turned back on. But now the screen is black - the backlight is on and the machine is running, but there's nothing I can do to get away from the black screen. Obviously this kinda sucks, because now my phone and laptop are both stuck somewhere in the boot process. Am I screwed, or is there a way to fix this issue? EDIT: I have tried a hard reset, the emergency BIOS access thing where I hold windows + B + Power On, and will try taking the memory out and putting it pack in tomorrow. I'm using this instructional video to guide me 

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Hi, Trying to boot my T550 from a Linux (Zorin) installation DVD. Can read the DVD in windows explorer. - it looks ok Have disabled Secure Boot and switched fro UEFI to legacy. Used f12 to select the DVD drive to boot but all I get is a black screen with 3 symbols. The 1st looks like a ruler, then =, then a stick figure in a circle. Any ideas? Liz

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I would like to enable legacy boot on my Lenovo q190 10115, however that function seems to be locked in the BIOS. How do I change this?

Answer:Lenovo q190 10115 - unable to enable legacy boot in BIOS.

Here's a solved post that may help you: https://forums.lenovo.com/t5/Lenovo-E-H-K-M-Q-Y-and-ErazerX/Lenovo-Q190-how-to-boot-from-usb/td-p/10... Can you try to:1 Boot into the BIOS by pressing F1. When you're in, navigate to the Startup & Exit Tab and set the following settings: UEFI Boot Mode = LegacySecure Boot = Disabled  (if applicable)CSM = Disabled / Legacy or Other OS (if applicable)OS Optimized Default = Disabled or Legacy (if applicable) Then go to "Primary Boot Sequence" on the startup tab and set the priority to the following: 1st = USB Key or USB HDD2nd = HDD 2. When done, insert your bootabe USB flashdrive and press F10 to save and exit BIOS.  Let me know your findings, Cheers

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Hi, I installed WIndows 10 using UEFI but  couldn't disable Legacy support boot mode in the BIOS.If I disable Legacy support the PC will beep 6 times and red led flashs on the power button. I don't know if anyone had encountered this problem before or have a solution for it? Help please! Cheers  

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i bought a laptop customised from HIDevolution.com recently and by default, they have installed windows 8 in Legacy mode (in HIDevolution installed SSD). now i wish to switch to UEFI mode. will simple reset in windows 8 give me an option for changing the BIOS mode? please help

Answer:how to boot windows 8 in UEFI mode having Legacy mode now?

Changing from legacy to UEFI mode has to be done before installing Windows:http://technet.microsoft.com/en-us/...

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Hello,
I tried to solve an installation problem for a friend of mine by GPT and as I tried to complete the installation, I most probably made a mistake in trying to turn UEFI boot on. I invalidated the legacy boot option and now the system does not start at all, no Dell logo nor anything else. I tried to boot on several installation DVDs with no results.

Is there a way to reset the settings I made in the BIOS ?
Is there any other solutions to boot ? Is possible that, I am able to find one, an UEFI iso image could be used to start from the DVD and go on with  the installation ?
I think the BIOS version was A11 but I am not 100% sure. Anyway, I am pretty sure I did not try to boot aother BIOS.
Is anyone can help me ;-)

Answer:Dell desktop: complete blank screen after setting Secure boot ON and disabling legacy

Glad that solved the problem. 
Please mark this thread as 'solved'
Thanks!

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How can I disable safe mode ? Any registry hack or something??? Just want to know.

Answer:How to enable or disable safe mode ?

Came across this freeware app Enable/Disable SafeMode Enable/Disable SafeMode by Shocker, ShockingSoft I have not tried it!
There also appears to be a shareware NoSafeMode which disables the F8 key.

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Hi I can't seem to get Secure Boot enabled on my laptop, the secure boot option is greyed out and I can't change it to enabled, my computer came with windows 8 on it automatically so I thought it would've been enabled by default.

Answer:Can't enable Secure boot

Have you disabled it at some point?

This might help..

Link: Secure Boot - Enable or Disable in UEFI

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Hi All, On my X1 Carbon, I had to move from Win 8.1 pro to 8.1 Ent. I did a fresh install from scratch to only install what I need.During my setup, I had to disable Secure boot, to boot on a USB Key, install 8.1 Enterprise. Now that everything is working, I would like to re-enable the secure boot option. If I don't it directly in the BIOS, the laptop doesn't book any more. ANy idea how to do it ? Do I have to import key from my 8.1 Ent to the Bios or something like this ? Thank youChristopher













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Answer:How to re-enable secure boot ?

Hi,please, specify: if you enable secure boot laptop with new win8.1 Ent can't boot up. Right?

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Hi I can't get Secure Boot enabled on my laptop, I know most Windows 8 computers come with it enabled but for some reason it isn't.

Screenshot below

 

Answer:Can't enable Secure Boot

check in bios settings it may be disabled there, if its not there ur system didn't came with that feature, in that case u will be able to use ur system just fine without secure boot feature.
 

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Source: answers.microsoft.com

Quote:




If you want to boot into Safe Mode to try and fix any issue, you need to enable it manually because it doesn't come enabled in Windows 8 by default.
To enable and use Safe Mode, follow the inline steps:
1. Click Start and click Search.
2. Type cmd and press Enter. cmd.exe appears in the results list.
3. Right-click on cmd.exe. An Advanced icon displays on the lower, right corner of the screen.
4. Click on Advanced icon and select Run as administrator. The User Account Control dialog box gets displayed.
5. Click Yes to continue.
6. Type bcdedit /enum /v on the command prompt and press Enter.
7. Type bcdedit /copy on the command prompt but this time do not press Enter.
8. Now, you need to add the identifier of the Windows Boot Loader with a description. For this scroll down to the Windows Boot Loader display. Right-click and select Mark from the popup menu. It will highlight the identifier. Press Enter to copy it
9. Go to the command prompt where you typed the command, right click and select Paste from the popup menu. The identifier gets copied after that command.
10. Press Space and type /d "Windows 8 Developer Preview (Safe Mode)" and press Enter to execute the whole command i.e. (bcdedit /copy identifier (copied) /d "Windows 8 Developer Preview (Safe Mode)"
11. Type Exit and press Enter to close command prompt
12. Again go to Start >> Search and type msconfig and press En... Read more

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I'm in the midst of reconfiguring IE Enterprise mode for a customer. Here's the current state:

There is a site list at http://ieem.internal.domain/production.xmlThe site list is readable by all users and contains the correct current list of sites and rendering modes (maintained by the Site Manager tool)Active Group Policy settings:Computer Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Use the Enterprise Mode IE website list: Enabled, Location = http://ieem.internal.domain/production.xmlUser Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Use the Enterprise Mode IE website list: Enabled, Location = http://ieem.internal.domain/production.xml
If I browse to a site in the Site List, Enterprise Mode is not enabled.
If I now set EITHER of these policy settings:

Computer Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Let users turn on and use Enterprise Mode from the Tools Menu: Enabled; ORUser Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Let users turn on and use Enterprise Mode from the Tools Menu: Enabled;
the user is still not forced into Enterprise Mode. However, they can turn on Enterprise Mode manually and the site list appears to apply correctly (as long as they turn it on on a page where it's supposed to b... Read more

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Hello my laptop doesn't allow any operatingsystem to be installed. it always shows meerrors such like " ...drive needs is missing..." or"windows can't install in drive 0"It's :Note book model : hp 14 notebook PCBIOS version : F.24processor type : intel(r) celeronI really need help to fixe this

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Anyone out there knows if it's possible to enable/disable (turn on/turn off) Airplane Mode either using CMD or with two separated shortcuts (i.e. desktop shortcut 1 enables Airplane Mode, desktop shortcut 2 disables Airplane Mode)?

Answer:Enable/Disable Airplane Mode with CMD or shortcut?

Hello TheRene,

I'm not aware of a way to toggle this with a shortcut, but you might see if using the "Networks" shortcut below may help make it easier to turn airplane mode on/off from the Start screen or where you like.

Networks flyout Shortcut - Create in Windows 8

Hope this helps,
Shawn

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Hi , i have problem in wow , i read about turn off game mode and uncheck game notification

but here is the problem , idk why in my option then Game , no appear game notification for disable or enable ??

Also in my option dont appear the Broadcasting

is fresh instalation today creator version all update

Answer:Game Mode notification disable/enable

alright the broadcasting appear , is beacuse i have in option xbox the GAME DVR off , i set on and broadcasting is there , but still , the notifiication wont appear , any help really apreciate pls

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Autopilot cannot be enabled, it auto toggles back to user mode, and game mode cannot be switched off. How can this be fixed?
 

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I had a Windows 32 System Error.  A file was corrupt or missing.I first had to go into the Bios and disable SATA Native Mode.Then, I put in the Windows Recovery Disk I purchased from Amazon.I went to a screen that read, "Microsoft Windows XP(TM) Recovery ConsoleThe Recovery Console provides system repair and recovery.Type EXIT to quit the Recovery Console and restart the computer. 1. D:\MiniNT Which Windows installation would you like to log onto(To cancel, press ENTER) This didn't  work at all. So I went back to try a step (Recovery Mode F11) that initially didn't work but I noticed more progress since I disabled the SATA Native mode. So I went to Recovery Mode and this time it worked.I recovered Windows back to Factory settings.Do I have to go back and enable SATA Native now?

Answer:SATA Native mode enable or disable?

Hi: It is best if you can, but you cannot until you install the SATA ACHI driver. If you have an Intel processor, I can help you do that.  If you have an AMD processor, I can't because I don't know how. If you have a notebook with an Intel processor, please post your full notebook model. It isn't really a big deal if you can't change the setting back. You'll hardly notice any difference. It is just that ACHI mode allows the hard drive to perform more efficiently for lack of a better word. See this article for more info. http://www.differencebetween.net/technology/difference-between-ahci-and-ide/ Paul

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Hello,

I'm trying to disable UEFI on my computer. I did this on some other PC's and it all worked out fine, but I got stuck with this one.

The BIOS does have a "secure boot", "fast boot", and "quiet boot" option, but even when I disabled them all I could still only boot into windows 8 (I'm using a USB-stick which worked fine on another computer).

I can't find a CSM or Legacy boot option anywhere!

Also, when I select my boot order, it says "UEFI:" in front of my USB.

Pictures:

Thanks in advance!

Answer:Disabling Secure Mode doesn't disable UEFI

If you can boot into Windows 8, what are you trying to boot on the Flash Drive? Or do you mean you cannot boot the flash drive at all? Maybe some clarification in this area.

What options are available on the fifth picture for UEFI USB Flash Drive Priorities?

On the sixth picture it mentions the CSM on the upper right.

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Hi,so I have a question. I bought my Thinkpad S440 with Windows 8 (not PRO) pre-installed. About a month ago I'd had a problem with my motherboard so I sent the S440 to Lenovo. My S440 came back with a new motherboard paired with Windows 8 PRO licence, with Secure boot disabled and still running my original Windows 8 (not Pro). So I reset my computer to the factory default settings (from Windows) and now I'm running Windows 8 PRO version. So if I want the Secure Boot back...My SSD is in GPT mode, can I just re-enable the Secure boot? Did Lenovo had to replace my Recovery partition with a new Windows 8 PRO image or is it the original image but with the PRO features enabled? What about restoring Factory keys from Thinkpad Setup, is it necessary for re-enabling the Secure boot?Thank you very much!David

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I can't seem to find a way.  Is it not possible on this machine?

Answer:Is it possible to enable secure boot in Windows 8....

http://acer--uk.custhelp.com/app/answers/detail/a_id/27071/~/how-to-enable-or-disable-secure-boot

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Hi there guys - any help will be much appreciated

I had a bit of a problem with Malware which led me to reinstall windows 8. I had also at the time been trying to install Linux to dual boot beside it. However, upon reinstalling I got the annoying watermark saying "Secureboot isn't configured correctly."
Having decided I would rather remove the watermark and having gone back into the BIOS (with a reinstall) and trying to enable secure boot I get a message - "CSM is Loaded! Disable the CSM via Setup and repeat operation after Restart".
However there is, as far a I can see no option to disable the CSM in my bios - I've tried disabling anything related to Legacy and reinstalling both Ubuntu and Windows 8 as well as wiping the drive and jumping the CMOS as well as updating the BIOS.

Am very much at a loss and feel I've tried every permutation in the BIOS. Could possibly be an incompatibility with graphics card, but wouldn't know where to start on that end if it is.

Many thanks for your time!

Answer:Can't enable Secure Boot on my BIOS.

CSM will not always be shown as a CSM on/off option; however, the Compatibility Support Module directly relates to Legacy support. So, I would start by resetting my BIOS to defaults and then reviewing the following options:

Secure Boot
Sets the Windows secure boot to prevent the unauthorized accessing. Press
<Enter> to enter the sub-menu. This sub-menu will appear when ?Windows 8
Feature? is enabled.

Secure Boot Control [Disabled]
Enables or disables secure boot.
[Enabled] Enables the secure boot function and allow you to set the secure
boot settings.
[Disabled] Disables this function.

Secure Boot Mode [Standard]
Selects the secure boot mode. This item is to select how the secure boot keys
be loaded. This item appears when "Secure Boot" is enabled.
[Standard] The system will automatically load the secure keys from BIOS.
[Custom] Allows user to configure the secure boot settings and manually
load the secure keys.

Image Execution Policy
Sets the policy when the system image execution policy on Security Violation.
Press <Enter> to enter the sub-menu. This sub-menu will appear when ?Secure
Boot Mode? sets to [Custom].

Key Management
Manages the secure boot keys. Press <Enter> to enter the sub-menu. This sub-
menu will appear when ?Secure Boot Mode? sets to [Custom].

LAN Option ROM [Disabled]
Enables or disables the legacy network Boot Option ROM for detailed settings.
This item will appear when "Onboard LAN Controller&qu... Read more

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I've been wondering if it's possible to use the legacy (Windows 7 and earlier) BIOS instead of UEFI in Windows 8.1. In my BIOS settings, there is an option to enable the legacy boot mode, but Windows won't boot whenever this is enabled (I get the message 'Operating System not found' instead). Is there any way to enable this?

NOTE: I am not talking about secure boot; I already have that disabled.

Thanks in advance.

Answer:Use legacy boot mode in Windows 8.1

Also, I'm using a Dell Inspiron 15 laptop in case that matters.

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Hello! I have a problem with my new Acer V 15. I want to boot from a USB pen and for that i realized that i need to turn off the UEFI boot mode and start legacy mode, after that i was unable to boot with my hard drive, it shows an error with patents and more random stuff. Any clues what i need to do? I want to install some linux distributions that  want to test. Thanks

Answer:Can't boot Windows 10 in Legacy mode

UEFI is needed on your actual windows 10 installation. most of Linux distribution can boot on UEFI settings too, you just need to "burn" the .iso file using Rufus, setting EFI/UEFI only as partition scheme and format FAT32.

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I'm using y50-70 .now I can't boot from any bootable USB in Legacy mode..I tried :1 - Disabling secure boot .2 - Changing boot mode to Legacy Support .3 - Disabling Intel Virtualization Technology .4 - Recopying the OS image on the USB several ways .5 - Changing USB .6 - Copying different OSs images on the USB ( tried win 8.1 , Ubuntu & Yosemite )7 - All OSs images used are working perfectly on other devices and working also on VMware.8 - Changed defaults in bios from "win8os" to "other os" .----------------------notice that I've tried Ubuntu bootable USB in EFI mode it booted successfully O.o***********My current specs. :OS : Ubuntu LTS 14.04 on installed with EFI***********my main target now is to boot my USB in Legacy mode ?

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ok it was working fine running windows 8.... i went into the bios and enabled legacy mode afther doing this now the laptop will not boot.. the screen reamines black... the power light comes on the fan turns on but nothing else happenes. thing i have tryed.. i tryed resetting the cash but did nothen i tryed holding the windows botton and the b key.... this is my my caps lock light flashes twice in blue....   

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In "User Guide" - page 28 there is instruction how to change Boot Mode to Legacy, but it's not work. Option <UEFI> is inactive.Yoga 2 11 BIOS is pure UEFI like Miix 10 (link) ?Why you doing this? How to install Windows 7 or load memtest?

Answer:Yoga 2 11 - how to boot in Legacy Mode?

Hi In the bios menu there is an option to choose default OS change that to 'other OS'. Then choose item above to reset to default values. once you do that you should then be able to find an option the change the boot type to legacy. sorry if that is not 100% correct but i dont have the screen in front of me. i am still struggling to boot to usb though. once i have set legacy boot mode, turned off fast boot, i expected to see my usb sevices in the boot menu but none of them are recognised. Please let me know if you manage to get it working. ThanksC

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Hi all, first of all I would like to provide you with some background information. I purchased (in Germany) 2 identical Yoga 11 machines (MAS29GE). Both had display ghosting issues and one of them had a lose trackpad. So, I sent them in for repair.
After getting back the 2nd one as well, I wanted to see whether the BIOS versions are identical on them, since the repair report said that there was a BIOS update performed on both machines. The BIOS version seems to be the very same I had before sending them in: v1.2.58, 05.12.2012
But then I noticed something strange: on one of the Yogas the Secure Boot State is Off. I checked it also with PowerShell and it shows False, meaning disabled.
So, I called Lenovo support, but they weren't able to help me. The answer was that I cannot enter the BIOS to change this.
However, I suspect that either the technicians entered the BIOS and forgot to enable secure boot later on, or something else messed it up. What I also noticed after receiving the Yogas back from repair is that the "Advanced Startup" in
Windows shows more options on one machne than the other. Please, see the below images for details:
 
Link to picture
 
Link to picture
 
I did 2x System restores already (1x quick, 1x secure), but the Secure Boot State did not change (this was to be expected since this settings is in the UEFI BIOS and not in Windows - nevertheless, was worth a try).
As I read in other comments, Microsoft did not intend users t... Read more

Answer:Yoga 11 Secure Boot State Off - How to enable it?

Hi ronaldlangley,
 
Welcome to Lenovo Community Forums!
 
I?m sorry to inform you that in Yoga 11 Secure Boot option cannot be enabled manually as the computer is installed with Windows RT version of the OS (Operating System) as there will be no BIOS in these computers and as per Solid_Cruver suggestion this post should answer your question.
 
http://forums.lenovo.com/t5/IdeaPad-IdeaTab-Slate-Tablets/Force-Yoga-11-USB-boot/m-p/1055157#M18977
 
Do post us back for further queries.
 
Best Regards

Shiva Kumar






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Hello everyone,
I am running Windows 8 x64 without secure boot enabled. According to the screen shot

secure boot is "Unsupported" but my motherboard has secure boot features in it. Its just that I didn't have secure boot enabled when I installed Windows 8 so Windows is unable to use secure boot now. What are the steps for setting up my computer for installing windows in secure boot mode ?

Pc Specs-:
Motherboard: Gigabyte H77m-D3H (rev 1.1)GIGABYTE - Motherboard - Socket 1155 - GA-H77M-D3H (rev. 1.1)
BIOS ver: F11 (Latest)
Ram:8 Gb DDR3 Corsair
HardDisk-: 1) Western Digital 160 GB (boot) 2) Western Digital 1 TB.

I had mailed Gigabyte support on how to enable secure boot they told me the following-:

"We suggest you can first back up data, reset BIOS items we mentioned in first mail, format your HDD into GPT partition and then reinstall Genuine Windows 8 to test again."

So I am asking how can I format my HDD into a GPT ? Is there anything else I need to before I install Windows 8 again ?? Please tell me the exact steps to follow.

Also, there are two things is there any app available via which I can backup my entire C drive including Program Files, all my installed apps, and all of my hotfixes and Windows updates ?? Because I don't want to reinstall everything again and again update my Windows 8.

Thanks.

Answer:How to enable Secure boot on Windows 8 at installaton ?

Originally Posted by sreyan32


Hello everyone,

Also, there are two things is there any app available via which I can backup my entire C drive including Program Files, all my installed apps, and all of my hotfixes and Windows updates ?? Because I don't want to reinstall everything again and again update my Windows 8.

Thanks.



Macrium Reflect Backup and Hard Disk Imaging for Windows 7, Vista, XP and Server 2003/2008

Macrium Reflect works good.
If I can get it to work, anybody can.

I backed up everything on a 64 GB usb drive.

See this thread:

Use .wim file or all drives image > Macrium

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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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hello!
my boot mode is set uefi with legacy oprom and I don't seem to have graphic options available on it..except ''dvmt preallocated'' I want to switch my boot to much more better...which should be the better option for it...I'm using asus vivobook x456ur ?

Note: I cant see boot option to set from uefi to legacy uefi or legacy
 

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Is it "normal" that the M.2 slot on these is only bootable in UEFI mode? I wasted my last day installing Mint 18.1 about 20 times with different bios settings, 2.5" SSDs, M.2 SSDs, etc. The M.2 slot functions fine regardless of whether the notebook using Legacy or UEFI mode, and I can install whatever OS to the drive without issue, however the system won't boot to the M.2 SSD when set to Legacy mode... and this isn't an NVMe SSD, it's M.2 SATA.  Legacy works with the 2.5" SSD fine. Thanks

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Is  B50-70 boot default UEFI or legacy mode?

Answer:Is B50-70 boot default UEFI or legacy mode?

Hi  lenovoman123, Good to have you back. If the system is using Win8/8.1/10 UEFI would be the choice, anything else I recommend using Legacy. Cheers,





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I have Enabled the Legacy boot option also the boot priority has been set to USB but when I am trying to select the boot option only Boot from Efi file and Boot from notebook hdd option is available. There is no option for selecting the USB drive from which I am trying to boot the laptop.  Please suggest solutions for this my Laptop has no OS now and I am trying to boot from fedora Live USB for taking Backup. 

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I want to boot from USB drive to install Linux. I  have updated latest BIOS released on March 2017 f16 rev A https://support.hp.com/us-en/drivers/selfservice/hp-pavilion-10-n100-x2-detachable-pc/8499312/model/... however, I can only disable secure boot with no option to enable legacy mode. The boot menu (F9) only allows me to boot into Windows or from EFI file

Answer:how to boot into legacy mode for Hp Pavilion 10 n100na? (for...

Hi,Can you take a snap of the BIOS setup screen you're seeing and post it here?RegardsVisruth

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A little background, my laptop suddenly crashed one day and it would not start windows, it would simply get past the Dell logo and then the screen would stay black until shutdown.
After a couple of times of this it would show recovery options for windows, atfer choosing to restore windows while preserving user files and waiting for it to complete it would now show a blue screen with a BCD error.
Now the next step would be to use a recovery media to repair windows start or simply reinstall it, problem is I can't get it to start from the usb.
As mentioned in the title I cannot disable secure boot, I can set it to disable and apply the changes, but then if I go to boot options I can't change from UEFI to legacy or I get an error(Need to disable SecureBoot) which is already done. So I restart hoping I can choose Legacy now but again the same error shows and Secure Boot shows enabled. Other BIOS settings also reset after every restart, the clock however does not.
I tried updating the bios, using F12 for the boot menu there is an option to update the bios, I then select the file from the usb which is correctly recognized and the process starts and it completes almost immediately but upon restart the bios version is still the same 1.0.
I have tried leaving UEFI, going into Boot Sequence and Add Boot Option selecting the usb which is recognized correctly but upon saving, restarting and using F12 I can't see the option I added for the USB. I'm using similar steps to th... Read more

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A few days ago i installed the BIOS 2.40 update an i also disassembled the laptop because of severe heating problems.

After putting everything together, on the windows login screen i noticed the keyboard did not work anymore.

Only the CapsLock button would light up, And after starting the notebook pressing all the function keys would get me into F8 boot menu.

Now whenever the computer starts up i cannot use the F2 and F12 BIOS menu en BOOT options.

And after that when windows starts, the keyboard stops working.

When enabling/disableing sleep mode the keyboard works again.

When connecting an external keyboard to get into BIOS, pressing the F2 buttong gives me a blank screen, and nothing happens, i have to reboot.

I took care of the dust problem before once, and that gave me no problems at all, so now i think its the bios update that is giving me the problems, since i cant even boot into the BIOS menu.

I want to try to downgrade to 2.30, i have the file, but i cannot flash the bios to an older version.

I hope there is someone who can help me out? Maybe i need to look into another direction with this problem.

Answer:Satellite A350 - Keyboard only works after enable/disable sleep mode

Ok another update.

I've downgraded my BIOS to version 2.30, and then tried 2.10.
But still the same situation.

When starting up the computer, and pressing F2, it says entering setup>blank screen>windows loading.

What could be the cause of me not being able to enter the BIOS menu?

I would say its no software or rom issue, since ive reinstalled and flashed both, with the same results and problems.

So could this be a hardware problem?

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Hi,

I just bought a toshiba satellite L10W-B and I'm very disappointed with the fact that the option to change the boot mode from UEFI to CSM/legacy isn't available, why is that ?
Can somebody tell me how to do this ?
The bios isn't even accessible, only the "Toshiba utility setup" instead which doesn't give many options, how can I access the BIOS, the real one ?
I've been around internet for hours, didn't find the answer.
Thanks you so much,

Answer:Satellite L10W-B - Change boot mode to CSM/Legacy

I'd really like to know that, too. Please write me if you find a solution

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Hello, I recently bought Aspire VN7-593G-7212 so I spent all day today trying to install Windows 7 instead of pre-installed W10 because of compatibility and force of habit reasons. With no luck unfortunately. Is is not much of a help that there is no "boot mode" option in bios (v1.00). Is there any workaround or bios update which allows me to successfully install Windows 7? Any help would be very appreciated, it's crucial to me and it would be shame to return such a beauty.  Thanks.

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When i try and boot my Windows 7 x64 DVD in UEFI mode my computer completely skips it and boots my hard drive. However when I boot in legacy mode i can boot the CD but i get the error 'Windows cannot be installed to this disk. The selected disk is of the GPT partition style'. I'm assuming i get this error because i'm not booting via UEFI mode.

Answer:Windows 7 Installation CD - Can boot in Legacy mode but not in UEFI

Where do you buy your Windows 7 DVD from?

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I just got this brand new computer and switched out the hard drive with my current SSD and 16gb of pc-12800 1.35v. Since i wasn't using a UEFI compatible bios before, I switched this one into legacy mode. When I rebooted, the computer just hung at the first screen. It will not go into bios or boot menu or anything. It will accept keypresses for the first few seconds of boot, but then just hangs saying "Entering Setup" or other appropriate messages. Switching the hardware back to the factory parts had no effect on this state. After that I started messing around and found that some older ddr3 ram allowed me to get into the bios and change it back to UEFI. In that mode, even with secure boot disabled, I cannot boot to DVD, USB, SSD, or the original hard drive. It is almost like they aren't recognized. Is there an issue with the 1.11 bios here? Thanks,Bob

Answer:Brand New T540p will not boot in legacy bios mode

I have the same problem.I replaced my ssd with original hard driver ,swith to legacy mode and installed centos, after installation, it could not boot succefully,then I switched back to UEFI, and installed win8 with UEFI, after installation, it also could not boot.After that, I switch back to lagacy and computer hangs at the screen same as you, which shows 'to interrupt normal post?press enter', and nothing could be done to pass it.  after replace old ddr3 ram,  it also made me succesful to enter bios. I switch back to UEFI. the system dit not hang but nothing could be done. If with T540p's original ram, when I press F12, both harddisk and cdrom could not be detected.If with old ddr3, the hardisk and usb showed sucessfully, but when pressed, noghing happend. can anybody help to fix it? Thanks very much.  

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Tried various search terms, but nothing came up.

Upgraded to windows (from factory default windows 8) 10 while it was still free. Wiped the drive and tried to reinstall windows 10 (home) and all I got was an error saying that can't install on non gpt partition. Turns out the only way can figure out how to boot usb is via legacy mode. Plugged hard drive into desktop machine and says all the partitions are in fact gpt. Used rufus to burn image to usb, made sure that is gpt as well. For fun, tried the system restore function, but fails right away. I just deleted the windows partition (not the entire drive).

Was playing around with settings in the bios:

Insydeh20 setup utility. gpt option (usb) - select option
Get his popup -> input file path?

Answer:how to boot usb in uefi mode (not legacy) for inspiron 3531

When you reinstall there are some critical partitions.  You cannot leave any of those of the drive and reinstall Windows 10.  Data partitions should be OK.
To boot a USB drive as UEFI, assuming your system has that capability, you have to format the USB drive as FAT 32.  It must use an x64 bit version of Win 10.
When you boot you should be able to see a Boot Device Menu.  Look for something that shows as UEFI and boot to that.  If you don't see a UEFI option, the Bios may be set incorrectly or the USB drive is not configured correctly.

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All,I updated my bois to v2.30 last night and found the machine doesn't boot anymore. It kept complaining it can't find a boot loader.After extensive research I found changing the boot mode to "legacy" will revive the OS.I just wonder, do I stuck with legacy mode for the rest of the laptop's life? what's wrong? thanks,

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How do I disable the secure boot on an H/P desktop stand alone ( wireless ) with windows 10 cannot locate instructions on H/P tutorials.

Answer:Disable secure boot

Hi: The only document I know of for how to disable secure boot on any HP desktop PC is this one... There aren't any that are model-specific. http://support.hp.com/us-en/document/c03659945/ This applies to any PC that came with W8 or newer from the factory.

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Hi, i want to disable secure boot so i can use my new gpu but i've heard that you must disable secure boot and enable legacy boot.
if I do this, can i still boot Windows 8 or do you have to reinstall windows 8?

Answer:Disable secure boot

I disabled secure boot & kept UEFI with no problems.

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I want to disable secure boot on my Inspiron 17R to upgrade to Windows 8.After shutting down and then restarting pressing F2 or F10 it drops into
advanced boot options but I can't find   where the boot options are, never mind changed.Can can anyone walk me through this in more detail.Appologies
if I'm being a bit dim.

Answer:Disable Secure Boot.

Hi,
Secure boot is a feature of Windows 8 which uses a public-key infrastructure to verify the integrity of the Operating System and prevent unauthorized programs such as boot kits from infecting the device.
I checked the BIOS of your system model and there is no option to disable secure boot.
Before installing Windows 8, I would suggest you to run Windows 8 Upgrade Assistant by clicking the link mentioned below, it will scan system hardware, apps, and connected devices to see if they'll work with Windows 8:
http://bit.ly/PSGwvj
You may refer to the link mentioned below for some more information:
http://bit.ly/SMLRju
Thanks & RegardsManshu S#iworkfordell

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I want to disable secure boot on my Asus transformer book T200 but after doing that Windows 10 home won't boot anymore (something about Bitlocker). I don't seem to have the Windows-option to turn bitlocker off.
Do I have to reinstall Windows 10 home after turning of secure boot?

Answer:How do I disable secure boot?

If you have a system that came with Windows 10, then it will not be possible to turn off secure boot.
If you had secure boot turned on before an upgrade to Windows 10, then it is unsure if it is possible. Windows 10 becomes registered to the system, and I am unsure if that system includes whether or not secure boot is enabled.
Microsoft is moving to require all new systems have secure boot enabled and the ability to disable it removed. That means all systems that come pre-shipped with Windows 10 are supposed to have the option to turn off secure boot removed.
If you need to remove secure boot in order to dual-boot with a system such as Linux, then it is entirely possible that you will have to wait until Linux gets a core update to support secure boot.
Windows 10 is being billed as a secure OS, and running it on a machine along-side another OS without secure boot enabled will simply open up too many possibilities of problems and security issues.

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Sorry to trouble you guys,
but like it says in the title, I'm finding that I am unable to disable secure boot. I can change the boot mode from UEFI to Legacy BIOS and that disables secure boot, but in Legacy mode I can't do what I'm trying to. I can't select the Secure Boot menu in the BIOS options--it's always greyed out. I've done some research and some sources said to hold shift while shutting down "to ensure you're really stopping Windows before trying to enter the BIOS" and hitting F2 on startup. I tried that but it made no difference. I've tried fiddling around with getting to the BIOS in other ways (forgotten how, now) and of course that made no difference. I'd appreciate any help and would be so happy to get this resolved.

I'm running Windows 8.1 on a Acer Aspire V-3551 that came with Windows 8 preinstalled.

Thanks

Answer:Cannot Disable Secure Boot

I can change the boot mode from UEFI to Legacy BIOS and that disables secure boot, but in Legacy mode I can't do what I'm trying to



What are you trying to do?

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clean install w10 winver 1607   i am trying to install Unlocker ver 1.8.5.        say I need to have digitally signed driver.   google search says to go to BIOS and diable secure boot.      <   I can't find it.   help please 

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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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It gave me a black screen with the following words"reboot and select boot device or insert boot device and push a key"But the weird thing is I set the boot priority to Hard Disc already. But it cannot boot from hard disc. What is tricky is that the original 1st boot device is not hard disc but something called "boot device manager". I think something about this "boot device manage" is causing problem. So what can I do is i want to enable CMS?

Answer:Can't boot Win8 after disable secure boot and turn...

you need to enable CSM only if you want to install legacy OS that not support UEFI boot. windows boot manager is the manager that will boot your windows 8-8.1 OS, so if you set HDD ubstead if windows boot manager you can have boot problem.  

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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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I have a desktop with a SSD of 250 GB running windows 10, I tried putting it into legacy mode in BIOS for dual booting with Linux Mint. But when I restart to check it, I get error 1962, no operating system found.

I made a partition in C drive and installed Mint on it, but during boot up, I go straight to windows with no mint option.

I tried Windows 10 fast boot stopper from the tutorial here, maybe too late, it made no difference.

EasyBDC is blocked from Linux options in editing boot menu.

I don't want to lose windows 10, but would like Mint as well. Any experience or advice, is there a tutorial?

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I access my Y480's bios and can't seem to find an option for secure boot. I don't know if it's because it doesn't exist in my (late 2012 pre-Win8) version. On the same note, disabling EUFI makes my cd drive not an option for booting anymore.

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Hello everyone, Here is my issue. I just got a deal on a brand new HP Probook 450 G3 that came with a 1To HDD and Windows 10 pre-installed. I used the spare money to purchase an Windows 7 Pro x64 license and a Sandisk 256Gb SSD. My intention was to pull the original HDD out and do a clean install of Windows 7 on the SSD. I have gone absolutely bonkers after 72 hours of trying... Sorry in advance if I state the obvious or if I do not use the right wording. I know a little but am definitely not a wiz. So here goes.  PROBLEM 1: Impossible to Enable Secure Boot and Install Windows 7 I unplugged the HDD and swapped it with the SSD. Using Rufus, I created a bootable USB stick formatted as Fat32 and partitioned as GPT since my Bios defaults to UEFI. I stuck the USB device in the computer, went to F10 - BIOS Setup. My BIOS is version N78 Ver. 1.06 12/18/2015 (latest). The USB device is properly recognized as a UEFI device. In BIOS Setup  >>  Advanced  >>  Secure Boot Configuration, I switched to Legacy Support Enable and Secure Boot Disable then Save. In Boot Options, I unchecked Fast Boot. Below, UEFI Boot Order is greyed out and cannot be unchecked. Only the device booting order can be tweaked so I ranked the USB device first. Below, Legacy Boot Order is greyed out and cannot be unchecked. Instead of a device list as with UEFI Boot Order, the following sentence is written: "Enable Legacy Boot, Save Settings & Ex... Read more

Answer:Impossible to Disable Secure Boot

The simplest method is to use a SATA to usb adapter and a  cloning utility. I have an Apricorn adapter and Acorn cloning utility that was delivered with a Crucial SSD I purchased as a migration kit.  Other great cloning utilities are Paragon software's  Migrate OS to SSD. Using this method takes about 30 minutes or therabouts. If you prep the SSD with the Diskpart utility you should be able to use the recovery media to install the operating system. Once the SSD has been cleaned, a partition created, has been formatted ,  and been made active  then there shouldn'd be an issue using it as the primary disk in a notebook.  

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Unable to boot from usb. Followed all the instructions given in the manuals and online help. In BIOS menu "secure boot disabeled, entered the given codes, answer was given "database empty". After repeatedly restarting no usb booting (with several usb sticks and systems on it). The only way to start is on Win10 and NOT from usb.Please help!Dirk

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I have an acer laptop that came preloaded with windows 8 64bit. I am unable to turn on test mode. It says "Setting is protected by secure boot" or something similar.

An option in the boot settings (accessed by holding shift key while restarting) is there to turn off driver signing restrictions but it isn't working for me at all.

I did it on my desktop with windows 8.1 (not preloaded) in order to set my mouse USB port to a higher frequency with a non-digitally signed driver.

Help..?

Answer:How to disable secure boot on my laptop?

bump...

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Hi, I am trying to install Kubuntu 14.04 on a newish HP Pavilion "envy" laptop and it keeps refusing to boot from the USB stick. I have been told to disable secure boot via starup and "firmware management" but I cannot find a "disable secure boot" option anywhere. Is it even possible to do this?

Answer:Disable secure boot on windows 8?

Have a look at HP support .

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Greetings..   i have 25 or so hp 19-2110t machines and i'm having to install Windows 8.1 with the traditional BIOS..  and i cant seem to figure out how to disable the Secure Boot..   i've been in the BIOS, and followed the directions available..  select Secure Boot -> disable; reboot, enter the 4-digit code..  back in the BIOS screens say "disable" but moving to the Boot Menu, i try to enable Legacy BIOS, error message pops up saying i have to disable secure boot.  all indications are that i have, but i still get the error.  3 of the 25+ machines all react the same so it must be something i'm missing.  i'm wondering if anyone has any thoughts..  ?        thanks..   sorry if i put this post  in the wrong category..

Answer:cant disable secure boot on hp 19-2110t

Hi,  You want to end up with legacy disabled and secure boot disabled then save the change. You might try installing the latest BIOS update for your AIO. 

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Hello! I am having troubles with my bios because the secure boot is not showing up for me at all. I have looked everywhere but nothing at all.I am using BIOS and not UEFI. I also have the acer aspire M5910 model. My BIOS is AMI (American Megatrends INC) 1985-2010. Here are couple of pictures from my BIOS settings:Bios menuProduct InformationStandard CMOS FeaturesAdvanced BiOS FeaturesAdvanced Chipset Featuresintegrated PeripheralsPower Management SetupPC Health StatusFrequency/Voltage ControlBios Security FeaturesWhen i change the supervisor password i get thisThe security option have these options If you need more information please let me know!

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Hello, I just bought a New ProDesk 400 G3 with freeDos and I would boot with a USB, but no reaction, I entered to the Bios Menu, I found that the secure boot was enabled, I tried to disable it then it gave me that was disabled but when I rebooted the PC, I found the same problem that the secure Boot was not disabled. Please advice. Best regards,Nour-Eddine KEHY.

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Hi, as for my problem, my laptop is just stuck in this black screen not even loading anything even the lenovo logo. Power is ON, but nothing is happen and only shows the black screen. It happened when i decided to change the boot mode from uefi to legacy. I can't access bios to undo the boot mode cause as I said it is stuck in black screen. How can I reset the bios?

Answer:Lenovo G40-30 Black Screen in start up after Changing boot mode to legacy

Hello and welcome,
 
Have you tried turning it on via the Novo button instead of the main power button?
 
Z.

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Hi, as for my problem, my laptop is just stuck in this black screen not even loading anything even the lenovo logo. Power is ON, but nothing is happen and only shows the black screen. It happened when i decided to change the boot mode from uefi to legacy. I can't access bios to undo the boot mode cause as I said it is stuck in black screen. How can I reset the bios?

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Defragment is a process of consolidating fragmented files on hard disk.
Boot defragment helps Windows to load faster. Though by default, boot defragment is enabled in Windows, it's a good idea to verify it's state as follows:
♦Type "regedit" in Start Menu Search box and hit enter.
♦In the registry editor, go to the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction
♦Check the string "Enable" on the right hand side.
♦Modify it to "Y" to enable boot defragment and "N" to disable.
♦Close the Registry Editor and reboot the system.
Source:tweakwindows

Answer:Enable or Disable Boot Defragment

Thanks for Useful Tip...

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I've never had issues deploying replicated BIOS Settings using the HP utility with Microsoft Deployment Toolkit, especially when disabling Secure boot, but now this hardware requires you to verify the changes by entering a randomized 4 digit code. Does any know if this process could be automated? Thank you,  -R

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