Will turning on Secure Boot cause issues with an existing Windows installation?

[Elliot B.]

Battlefield 6 requires Secure Boot to run but I have turned it off on my ASRock B650M Pro RS.

I cannot remember why I did this exactly, as it was a long time ago.

Will anything happen to my existing Windows installation if I turn on Secure Boot?

[Som]

On 04/08/2025 at 21:55, Elliot B. said:

Battlefield 6 requires Secure Boot to run but I have turned it off on my ASRock B650M Pro RS.

I cannot remember why I did this exactly, as it was a long time ago.

Will anything happen to my existing Windows installation if I turn on Secure Boot?

If you're in uefi mode already you should be fine. 

Also that's crazy that battlefield 6 requires that

[neufuse Veteran]

the fact a game requires secure boot anymore is nuts... yeah i know its probably for anti-cheating somehow but sheesh

[Mockingbird]

It's only a problem if your PC had previously been set to CSM/Legacy boot.

[adrynalyne]

On 04/08/2025 at 16:29, Som said:

If you're in uefi mode already you should be fine. 

Also that's crazy that battlefield 6 requires that

I guess they took a page from Valorant devs.  It also requires TPM 2.x.