To turn on Secure Boot so Battlefield 6 (BF6) will run, you need to change a few BIOS/UEFI settings and make sure Windows is using UEFI with a GPT system disk.

1. Check Secure Boot status in Windows

  • Press Windows + R , type msinfo32, and press Enter.
  • In System Information , look for Secure Boot State.
    • If it says On , youā€™re done; BF6 should not complain about Secure Boot.
* If it says **Off** or **Unsupported** , continue.

2. Enter BIOS/UEFI

  • Restart your PC.
  • While itā€™s starting, repeatedly tap your BIOS key (often F2 , DEL , F10 , F11 , or F12 , depending on your motherboard or laptop brand).
  • You should land in the BIOS/UEFI setup screen.

3. Make sure UEFI (not Legacy/CSM) is enabled

Secure Boot only works in UEFI mode, so this part is essential.

  • In BIOS, go to the Boot or Boot Configuration section.
  • Find Boot Mode , CSM , or Legacy options.
    • Set Boot Mode to UEFI (not Legacy).
    • If there is a CSM or Legacy Support option, disable it.
  • Save changes and reboot back into BIOS once to ensure itā€™s still booting correctly in UEFI.

If the PC refuses to boot after switching to UEFI, your system disk may still be in MBR format and not GPT, and you may need to convert it before using Secure Boot.

4. Enable Secure Boot in BIOS

Once UEFI is active, the Secure Boot option should no longer be greyed out on most systems.

  • In BIOS, switch to Advanced view if there is one.
  • Look for Secure Boot under one of these menus:
    • Boot
    • Security
    • Authentication
  • Set Secure Boot to Enabled (sometimes labeled Windows UEFI mode).
  • Save and exit BIOS (often F10 , then confirm).

5. Handle ā€œUser / Setup / Not Activeā€ quirks

Some boards show Secure Boot as Enabled but Not Active or display modes like User and Setup.

  • If Secure Boot mode shows User , you can usually just toggle Secure Boot to enabled and it will work after a reboot.
  • If it shows Setup or you see strange ā€œEnabled but not activeā€ messages:
    • Temporarily disable Secure Boot if itā€™s enabled.
* Change Secure Boot mode from **Standard** to **Custom** , accept factory defaults, then switch back to **Standard**.

* Reā€‘enable Secure Boot, save, and reboot; the state should change to active after Windows starts once.

6. Verify in Windows again

  • After Windows boots, open msinfo32 (Windows + R ā†’ msinfo32).
  • Confirm Secure Boot State: On. If it is, BF6ā€™s Secure Boot requirement should be satisfied.

7. If your disk is MBR (advanced / risky)

If Secure Boot stays unavailable even in UEFI mode, your system disk might be MBR and need converting to GPT, which can be risky without backups.

  • Back up important data first.
  • One common method (run as Administrator in Windows):
    • Open Command Prompt (Admin).
    • Run mbr2gpt /validate /allowFullOS and, if successful, mbr2gpt /convert /allowFullOS to convert the system disk to GPT.
  • After conversion, ensure BIOS is set to UEFI , then repeat the Secure Boot enabling steps.

If you tell what motherboard or laptop model you use and whether BF6 shows a specific error text, more tailored stepā€‘byā€‘step guidance is possible.