Windows Upgrade Help and more

That error usually means Windows lost track of your drive during the upgrade. First, try booting into the Advanced Startup options by forcing your PC off and on three times during startup. From there, try Startup Repair. If that fails, you can try a system restore to roll back to before the upgrade ...

Can confirm. Yeah, that's a great point. One extra tip: if you see "Modified" memory staying high, it often means an app is holding onto data it might need again soon, but a restart can clear it.

Before you try that, did you check if TPM 2.0 is enabled in your BIOS?

Also, after you enable PTT, did you save and exit the BIOS completely so the setting could take effect?