Spent the past 6 hours trying to even get into the bios... Bought a second hand laptop for the Mrs 6 months ago and up until now everything was fine. But I got the same secure boot message and then found out there's a password on the bios and the previous owner hasn't got a clue and says he's never even been in the bios... Long story short - my Mrs isn't going to be playing BF. Answer from vayana on reddit.com
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JustAnswer
justanswer.com › computer › mld4n-just-bought-lenovo-legion-slim-cant-secure-boot.html
How to Enable Secure Boot on Lenovo Legion Series - Expert Q&A
If Secure Boot won’t activate on your Legion Slim 5, first ensure BIOS is updated. Disable Legacy Boot and enable UEFI mode. Clear existing Secure Boot keys and enroll new ones if needed.
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Lenovo Community
forums.lenovo.com › t5 › Gaming-Laptops › Can-t-enable-secure-boot-and-Lenovo-legion-pro-5 › m-p › 5233561
Can-t-enable-secure-boot-and-Lenovo-legion-pro-5
June 24, 2023 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
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Quora
quora.com › How-do-I-fix-enable-a-secure-boot-on-a-Lenovo-Legion-5
How to fix/enable a secure boot on a Lenovo Legion 5 - Quora
Answer: I am not sure how to explain in question so I decided to explain as “answer”. (first time using this app) I want to upgrade to windows11 (upgrade via windows update, where I keep all the stuff, not from start) and only problem is secure boot. I tried few thing and entered BIOS options ...
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Linus Tech Tips
linustechtips.com › consumer electronics › laptops and pre-built systems
Can't enable Secure Boot in bios - Lenovo Legion 5 (2021) - Laptops and Pre-Built Systems - Linus Tech Tips
January 9, 2022 - Hi, When I bought the laptop, Secure Boot was enabled. In the last week, I've had Linux installed beside Windows 11, and in order to be able to do that, I had to disable Secure Boot. Yesterday I removed the Linux install as well as its GRUB bootloader, and it seems that Secure Boot cannot be enab...
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Microsoft Learn
learn.microsoft.com › en-us › answers › questions › 4023214 › how-to-enable-secure-boot-on-lenovo-legion-slim-5
How to enable secure boot on lenovo legion slim 5 16aph8 - Microsoft Q&A
May 23, 2024 - If the drive on that laptop is not encrypted with Bitlocker, go to the support page for that laptop on the Lenovo website to see if there is any BIOS update available that may need to be installed
Find elsewhere
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Reddit
reddit.com › r/lenovolegion › can't enable secure boot legion 5 intel version
r/LenovoLegion on Reddit: Can't enable secure boot Legion 5 Intel version
April 17, 2024 -

I would like to run a game that needs secure boot enabled. I tried whatever methods I could find on how to solve this issue, but nothing worked for me so far.

So what happens is, When I do enable secure boot the laptop tries to boot. The keys light up. However, it shows a black screen, restarts again and when I check the registry and system information secure boot is off in both.

I used to have it turned on when I installed windows 11 and after the fact. But now it's turned off and I can't get it to turn back on again

Enable secure boot by pressing F2 when the computer starts. Go to "Security" menu, then on select "Enable" for "secure boot mode" item. It Didn't work.

Says TPM 2.0 is turned on. Shows MGS Mode.

Check that "platform mode" is configured to "user mode". It is in user mode but it did not solve my problem

Restore factory keys. At the bottom of the "security" menu. It didn't work

Clear keys in by running tpm.msc. Then enabling secure boot in BIOS menu again. did not solve anything. I had to set a new password for my PC though.

Update BIOS. Then re-do each step again. It did not solve the problem either

I checked on "system information" window and the "secure boot" is still considered unabled.

Do anyone have an idea on how to fix this issue?

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Reddit
reddit.com › r/nixos › how to enable secure boot on lenovo legion 5 for flakes
r/NixOS on Reddit: How to enable secure boot on Lenovo Legion 5 for flakes
October 26, 2024 - For boot have the following configuration:{lib, ...}: { boot = { # Enable this temporarily before enabling the lanzaboote Secure Boot module. bootspec = { enable = true; }; lanzaboote = { enable = true; pkiBundle = "/etc/secureboot"; }; loader = { efi = { canTouchEfiVariables = true; }; systemd-boot = { # Lanzaboote currently replaces the systemd-boot module. enable = lib.mkForce false; }; }; }; } ... Haven't thought of that. ... I got my own Lenovo Legion! ... Should I still be concerned about the security and privacy of Lenovo laptops, or at least more so than with other brands, if I install Linux on them? ... [Lenovo] Lenovo Legion 5i Gen 10 Laptop: 15" 1600p OLED 165Hz, Ultra 7 255HX, RTX 5060, 16GB RAM, 512GB SSD with 505 off using code https://lenovo.vzew.net/6y2n3Q, for $949
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Lenovo Community
forums.lenovo.com › t5 › Gaming-Laptops › enable-secure-boot › m-p › 5227797
enable-secure-boot - English Community - LENOVO COMMUNITY
May 30, 2023 - Upon rebooting Secure Boot should be enabled. Hope this helps. Regards, Jack_Lenovo1 · Did someone help you today? Press the thumbs-up icon below to thank them! If you find a post helpful and it answers your question, please click the "Accept Solution" button! ... This does not work at all for me, with a Legion Pro 5i (8th gen) bought from your site last week.
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Lenovo Community
forums.lenovo.com › t5 › Laptopy-gamingowe › Legion-7-15IMH05-Secure-Boot › m-p › 5108653
Legion-7-15IMH05-Secure-Boot
Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
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Reddit
reddit.com › r/lenovo › le secure boot ne veut pas s'activer sur mon legion 5
r/Lenovo on Reddit: Le Secure Boot ne veut pas s'activer sur mon Legion 5
November 23, 2025 -

Salut tout le monde ! J'ai besoin d'aide pour activer le Secure Boot sur mon Legion 5 15IMH05H et pouvoir jouer à certains jeux qui l'exigent.

Avant de poster ça, j'ai cherché et essayé toutes les options possibles que je pouvais faire. Voici les spécifications de mon ordi portable : CPU : i7 10e génération GPU : RTX 2060

Mon Windows 11 Pro était pré-installé en Legacy, donc je l'ai changé en UEFI dans le BIOS, et j'ai aussi réinitialisé les clés d'usine, ce qui active automatiquement le Secure Boot. Le problème, c'est qu'il est toujours désactivé après avoir redémarré mon ordi portable. J'ai fait ça encore et encore, mais rien n'a changé. De plus, le format de mon disque est en GPT et non en MBR.

Les trucs que j'ai notés : • Description autre OS : Non disponible (informations système) • J'ai demandé à chatGPT et il a dit que la signature de mon GPU/pilote était peut-être la cause de sa désactivation

Mes questions, si quelqu'un peut y répondre : • Après avoir changé Legacy en UEFI dans le BIOS, est-ce que je dois réinstaller Windows via le cloud pour que ça marche ? • Est-ce que mes pilotes NVIDIA sont la cause ?

*J'ai aucune formation en informatique ou quoi que ce soit, je suis juste une fille qui veut jouer à des jeux.

Vos avis/suggestions seraient très appréciés !

Top answer
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u/Legitimate_Nobody289 Salut, on est vraiment désolés d'apprendre les problèmes avec Secure Boot. Non, vous n'avez probablement pas besoin de réinstaller Windows via le cloud pour activer Secure Boot. La raison principale de ce problème est généralement que votre disque d'installation de Windows est formaté dans l'ancien style de partition MBR (Master Boot Record), qui est incompatible avec Secure Boot (une fonctionnalité UEFI uniquement). Secure Boot nécessite que le disque soit au format GPT (GUID Partition Table). De plus, les pilotes NVIDIA ne sont probablement pas la cause directe de l'impossibilité d'activer Secure Boot, mais plutôt une mauvaise configuration dans vos paramètres du BIOS est le coupable probable. Les principales raisons pour lesquelles vous ne pouvez pas activer Secure Boot sur un Legion 5 impliquent généralement des paramètres BIOS/UEFI incorrects, et non les pilotes NVIDIA eux-mêmes : Pour activer Secure Boot, le HDD/SSD doit être formaté en mode GPT (pas MBR), le système doit fonctionner en mode UEFI et le "Platform Mode" de Secure Boot doit être défini sur User Mode. Si le Platform Mode de Secure Boot est défini sur "Setup Mode", Secure Boot apparaîtra comme activé dans le BIOS, mais plus bas sous "Secure Boot Status", il sera indiqué "Disabled". Pour corriger cela, sélectionnez "Restore Factory Keys", ce qui restaurera les bases de données par défaut de Secure Boot et ramènera Platform Mode en User Mode. Vos paramètres devraient ressembler à ceux ci-dessous. Vous pouvez en savoir plus en utilisant les forums de la communauté Lenovo https://lnv.gy/4ocWwZa pour la solution de contournement pour activer Secure Boot. Tenez-nous au courant. -Kate_Lenovo
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u/Legitimate_Nobody289 Mets à jour le BIOS en utilisant ce guide https://lnv.gy/3XQLk9C -Kate_Lenovo
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Reddit
reddit.com › r/pcmasterrace › how to enable secure boot on the lenovo legion 5
r/pcmasterrace on Reddit: How to enable secure Boot on the Lenovo legion 5
September 2, 2022 -

So I just downloaded Valorant and when I try to play it it tells me this..
How Do I fix this?

TPM 2.0 seems to be working fine so I think it must be a problem with secure boot?
How do I check if secure boot is enabled?

TPM is enabled
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The BK Things
thebkthings.com › home › daily › how to enable secure boot for call of duty on lenovo legion laptops
Call of Duty Secure Boot Fix for Lenovo Legion - The BK Things
December 14, 2025 - You should now see the Secure Boot Status change to Enabled and Platform Mode change to User Mode. Press F10 to save and exit. After restoring the factory keys and rebooting, I launched Call of Duty again. It started perfectly without any error messages. The core issue on Lenovo Legion laptops often stems from the Secure Boot Status not updating even if you toggle the switch to “Enabled.”
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Lenovo Community
forums.lenovo.com › t5 › Gaming-Laptops › Enabling-secure-boot › m-p › 10023166
Enabling-secure-boot - One Language Community
February 24, 2026 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
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Win-Raid
winraid.level1techs.com › general & forum › off topic
Lenovo Legion Y540-15IRH Secure boot - Off Topic - Win-Raid Forum
January 16, 2025 - Hi … i want to update my BIOS to get secure boot option of my Y540-15IRH but i have the latest version and cant find any solution. Can you help me ?
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YouTube
youtube.com › watch
Enable Secure Boot & UEFI | Lenovo Legion - YouTube
This video shows you how to enable Secure Boot and UEFI mode on Lenovo Legion motherboards and laptops. Fix Secure Boot errors you might be seeing in games l...
Published   August 13, 2025
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TroubleChute Hub
hub.tcno.co › security › boot › legion
Enable Secure Boot, TPM and UEFI on Lenovo Legion | TroubleChute Hub
October 2, 2025 - Use the arrow keys to navigate to the Boot tab at the top. ... Note: If you just changed into UEFI mode, you may have a restart pending before more settings can be adjusted. Use the arrow keys to navigate to the Exit tab.