Do as it tells you. Find the screen in BIOS to enroll PK keys, then repeat the step. You’ll also need to disable CSM and switch to pure UEFI. Answer from rallymax on reddit.com
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Microsoft Learn
learn.microsoft.com › en-us › answers › questions › 5516790 › i-cant-enable-secure-boot-at-all
I can't enable Secure Boot at all... - Microsoft Q&A
August 7, 2025 - Windows 10 is installed in Legacy BIOS mode, that means you cannot enable Secure Boot or switch to UEFI BIOS because your drive will have an MBR partition style, and UEFI requires the drive to have a GPT partition style, it is a big job to convert ...
Discussions

Enabling secure boot cause PC to not boot
After converting legacy to UEFI, ... disabled, I then enabled TPM and secure boot, after saving and exiting my pc will not display anything. The fans just ramp up and down without anything else happening. My mouse and keyboard don't receive power and I can't boot back into the ... More on forums.tomshardware.com
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March 7, 2022
Can't enable Secure Boot
Do as it tells you. Find the screen in BIOS to enroll PK keys, then repeat the step. You’ll also need to disable CSM and switch to pure UEFI. More on reddit.com
🌐 r/buildapc
470
1071
July 17, 2021
Unable to enable my secure boot through my bios on my
Unable to enable my secure boot through my bios on my computer JA: That sounds frustrating! Can you tell me what happens when you try to enable Secure Boot in your BIOS? For example, do you see an error message or is the option grayed out? Customer: Secure boot state is greyed out and the other ... More on justanswer.co.uk
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1
August 13, 2025
Can't enable Secure Boot on my PC
I'm trying to enable secure boot on my PC so I can play a game that requires it, but I've been running into some issues with it and specifically my BIOS... More on techcommunity.microsoft.com
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October 17, 2025
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MSI
forum-en.msi.com › home
I am unable to enable Secure Boot
Note: This feature currently requires accessing the site using the built-in Safari browser.
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Tom's Hardware Forum
forums.tomshardware.com › home › software › windows 11
[SOLVED] - Enabling secure boot cause PC to not boot | Tom's Hardware Forum
March 7, 2022 - Make sure fTPM is enabled. Make sure CSM is disabled. In Secure Boot, select custom under Secure Boot Mode, Select Restore Factory Keys, Say YES to reset without saving. When BIOS restarts, access BIOS and change Secure Boot Mode back to Standard and then Yes to restart without save.
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JustAnswer
justanswer.com › software › pcx91-i-m-trying-enable-secure-boot-won-t-let-me.html
I'm trying to enable the secure boot but it won't let me. Where would I find that on the box that it came in. Just the
To enable Secure Boot, restart your PC and enter BIOS/UEFI settings (usually by pressing F2, Del, or Esc). Navigate to the Security or Boot tab to find Secure Boot. If disabled or missing, ensure the BIOS is updated and that Legacy Boot or CSM ...
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HP Support Community
h30434.www3.hp.com › t5 › Notebook-Operating-System-and-Recovery › Can-t-enable-secure-boot-in-bios › td-p › 8099369
Solved: Can't enable secure boot in bios - HP Support Community - 8099369
July 9, 2021 - You may need to check each option before you can enable Legacy Boot. ... If you see Secure Boot or Secure Boot Configuration in your BIOS but it is grayed out try the following:
Find elsewhere
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Eight Forums
eightforums.com › windows 8 forums › installation & setup
Solved - Can't enable Secure Boot on my BIOS. | Windows 8 Help Forums
October 11, 2013 - I see you started with Win 8 - did that ever work w/secure boot enabled? Then you tried to throw in Linux for a dual boot - is that where you are right now? If so, and I were in your shoes, I would can the idea of dual-booting Win 8 and Linux with secure boot because your BIOS has a toggle option for Win 8 enabled or disabled that either allows your secure boot to work with win 8 or another OS so I'm guessing you can't have it both ways.
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Reddit
reddit.com › r/buildapc › can't enable secure boot
r/buildapc on Reddit: Can't enable Secure Boot
July 17, 2021 -

Aight so I tried to turn on Secure boot on my Motherboard, and I got a message;

System in Setup Mode!

Secure Boot can be enabled when System in User Mode. Repeat operation after enrolling Platform Key(PK)

Motherboard: "MSI H310M PRO-VDH Plus" AKA: El Cheapo Motherboard (Purchased Mid-2020)

Note: I am not going to be online until the next day (where I live)

Update: After fiddling with settings while trying to figure out what the unclear instructions the BIOS gave me meant, I found out the solution was to make sure UEFI was enabled in a windows setting (Under advanced, then windows OS). Then I could change the Secure Boot Mode to custom, switch it back to standard, and that made the System go to user mode for some reason. After that, I could finally enable Secure Boot

Small Edit: Looks like this was really useful for people 5 months after the original post; I will just post this video that should help as it helped me: https://www.youtube.com/watch?v=NivpAiuh-s0

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CBT Nuggets
cbtnuggets.com › tutorials › how-to-enable-secure-boot-windows
How to Enable Secure Boot in Windows | CBT Nuggets Tutorial
Go to the Boot tab and find CSM. Set "Launch CSM" to Disabled. This puts the BIOS in UEFI mode. Be careful, though—changing CSM might prevent Windows from starting up if it is currently enabled. If you change this setting, you might need to back up your files and reinstall Windows. Now, let's check Secure Boot.
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Asus
asus.com › us › support › faq › 1049829
[Motherboard] How to enable or disable Secure Boot ? | Official Support | ASUS USA
Secure Boot State:The option is in gray as default and can't manually set. It is synced with Secure Boot Keys ... If it shows as On, it means Secure Boot is Enabled.
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EA Help
help.ea.com › home › technical issues › how to use secure boot
How do I use Secure Boot on my PC?
2 weeks ago - If Secure Boot State is Off, we’ll need to check the BIOS Mode and then enable it. If Secure Boot State is Unsupported, check with your motherboard manufacturer’s specification sheet or manual to see if Secure Boot is supported. If BIOS Mode is UEFI, then you can move on to how to enable ...
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VALORANT Support
support-valorant.riotgames.com › hc › en-us › articles › 10088435639571-Troubleshooting-the-VAN-9001-VAN-9003-or-VAN-9090-Error-on-Windows-11-VALORANT
Troubleshooting the VAN 9001, VAN 9003, or VAN 9090 Error on Windows 11 | VALORANT – VALORANT Support
Verify whether Secure Boot is supported and enabled · Press the Windows key. Type msinfo32 and press Enter. The System Information window opens. In the left panel, click System Summary. Scroll down the panel on the right and look for these values: ... The Secure Boot State value should be On...
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Microsoft Community Hub
techcommunity.microsoft.com › microsoft community hub › communities › products › windows › windows 11
Can't enable Secure Boot on my PC | Microsoft Community Hub
October 17, 2025 - Basically, I get to the point where you restore factory defaults in the secure boot menu of the BIOS and a pop up that I see in tutorials does not appear for me, and the system mode doesn't change to "User" when it is supposed to. Once I confirm "Yes" to installing the factory keys, nothing happens. The system is still in setup and when I try to enable secure boot, I'm told that "Secure Boot can be enabled when System in User Mode.
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ASUS
asus.com › support › faq › 1050047
How to Enable/Disable Secure Boot | Official Support | ASUS Global
4 weeks ago - For those utilizing Notebook, ... Boot · First of all, the device needs to enter BIOS configuration. When the device is completely shut down, persistently hold the [F2] key on the keyboard and simultaneously press the [Power button] to boot up....
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FACEIT
support.faceit.com › hc › en-us › articles › 4406281700370-Enabling-Secure-Boot
Enabling Secure Boot – FACEIT
Gigabyte: set CSM to "Disabled", then you can open the "Secure Boot" menu. After opening it, set "Secure Boot Mode" to "Standard" and "Secure Boot" to "Enabled".
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GIGABYTE
gigabyte.com › home › service & support › consumer › seek solutions & frequently asked questions (faq)
How to Enable Secure Boot and TPM 2.0 on GIGABYTE AM4 300/400/500series & sTRX4 TRX40series Motherboards - GIGABYTE Global
In such cases, the system disk must use the GPT partition style and the BIOS must be set to UEFI mode; otherwise, forcing Secure Boot may cause Windows to fail to boot. ... Secure Boot requires the disk to be GPT (not the older MBR, Master Boot ...