Windows Upgrade Help and more

Same here. You could also check if there's a BIOS update for your specific motherboard model, as that sometimes enables TPM 2.0. Another option is to look into a clean install using the Media Creation Tool, which sometimes bypasses stricter upgrade checks.

I had the same problem on a 7th gen processor. The registry bypass worked for me too, no issues so far.

Agreed. Yeah, and after you switch it to 2.0, you might need to clear the TPM in the BIOS before Windows will see it properly. Hope that helps.