Will updating BIOS in X570 Unify board erase the fTPM encryption key?

fiberjooky

New member
PRIVATE E-2
Joined
Feb 4, 2020
Messages
5
I have a MEG X570 Unify motherboard paired with an AMD 3950X CPU and as far as I can tell, my motherboard doesn't have a hardware TPM module in it. From what I've read I have the option to enable firmware TPM that is built into my CPU instead but my concern is if I enable the fTPM but later down the line update the BIOS to the latest version, will this clear my encryption key associated with my firmware TPM my CPU was using after the update? Will this lock me out of my computer completely after such an update?
 

nkyadav

antidisestablishmentarianist
Joined
Jul 3, 2020
Messages
8
It shouldn't - for me, with Windows Hello on both Windows 10 and the Windows 11 preview, it simply asks me to make a new PIN.

I believe (and I may be wrong) that the correct procedure is to clear the fTPM storage before upgrading your UEFI fw from inside Windows, but I'm not 100% on that yet.
 
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