Windows Upgrade Help and more

Agreed. Also, after you bypass it, you might want to turn off TPM and Secure Boot checks in the registry too, just to be safe.

Can confirm. This happened to me too. After switching to UEFI, I also had to load default secure boot keys in the BIOS before it would work.

Thanks! I cleared the TPM like you suggested, but now my computer says it can't find my Windows license. What do I do?

Awesome, working now. Thanks for the quick response!

Awesome, working now. Thanks for the quick response!

Perfect solution, thanks!

My computer’s TPM is suddenly locked and I can’t access my encrypted drive. I didn’t enter any wrong PINs that I know of. What steps can I take to diagnose the root cause of this lockout so I can prevent it from happening again?

This. Another option is to make sure TPM 2.0 is turned on in your BIOS settings, since that's a hard requirement.

Yeah, You could also try creating a fresh Windows 11 installation USB and using that to do a clean install, as it sometimes bypasses the upgrade block. Hope that helps.