Trouble activating secure boot... (please help)

Hi everyone.

I'm honestly out of ideas and hoping someone with this exact motherboard or a similar ASRock board has experienced this before.

My specs:

• ASRock B450M Steel Legend

• Ryzen 7 5700G

• Radeon RX 5500 XT

• Windows 11 Pro

• BIOS P10.60

I'm only trying to get Secure Boot working properly so I can play Battlefield (EA Anti-Cheat).

Here's EVERYTHING I've already tried:

• Updated the motherboard BIOS to the latest version (P10.60).

• Cleared CMOS.

• Reset BIOS to defaults multiple times.

• Enabled fTPM.

• Disabled CSM.

• Switched to pure UEFI boot.

• Converted my SSD to GPT.

• Completely wiped all partitions and reinstalled Windows from a bootable USB several times.

• Let Windows automatically recreate all EFI/MSR partitions.

• Used Windows Recovery and Startup Repair.

• Rebuilt the EFI/BCD boot files from the Windows Recovery Environment.

• Used Shift+F10 during Windows setup for troubleshooting.

• Verified Windows Boot Manager is the primary boot option.

• Enabled Secure Boot.

• Installed the factory Secure Boot keys.

• Verified that PK, KEK and DB keys are installed.

• Secure Boot Status shows Active.

• System Mode is User.

• Tried both Standard and Custom Secure Boot modes.

• Installed Windows using only Windows Update drivers.

• Installed AMD chipset drivers manually.

• Installed GPU drivers only.

• Performed multiple completely clean Windows installations.

Despite all of that, I still have these issues:

1. Battlefield / EA Anti-Cheat still says Secure Boot is not enabled.

2. On some fresh Windows installations, Explorer freezes about one second after reaching the desktop.

I also noticed many Reddit posts mentioning a BIOS option called "Update Secure Boot Key", but my ASRock B450M Steel Legend running BIOS P10.60 does not have that option. It only has "Install Default Secure Boot Keys", and my factory keys are already installed.

At this point I'm wondering:

• Is there a known issue with BIOS P10.60?

• Has anyone with this exact motherboard solved this?

• Is there anything else I haven't tried?

• Could this actually be an EA Anti-Cheat issue instead of Secure Boot?

**Before suggesting the common fixes, please know that I've already read most of the Reddit threads, ASRock forum posts, EA forum posts and Microsoft discussions about this issue. I've tried the solutions I could find, including the most common ones, without success. If you've personally solved this on the B450M Steel Legend (or a similar ASRock board), I'd really appreciate hearing exactly what fixed it for you.**

Thanks in advance.