Windows Upgrade Help and more

You could also try clearing the TPM from within Windows' security settings, then restarting and checking the BIOS again. Another option is to use the Media Creation Tool for a clean install, which sometimes bypasses weird upgrade checks. Let me know if that works.

This. You could also try clearing the TPM from within the BIOS, as sometimes that gets it to be recognized properly.

+1 Sometimes a BIOS update from Dell's website can resolve those stubborn compatibility flags.

Can confirm. Also, is the TPM actually enabled and activated in Windows itself, not just the BIOS?

I had the same problem. I had to go back into the BIOS and change the TPM from "Discrete" to "Firmware" mode before Windows would see it properly.

Can confirm. Yep, that firmware TPM setting was the key for me too. After switching it, I had to clear the TPM in the security settings before the upgrade finally went through.

Yeah, You could also try using the official Media Creation Tool to do a clean install instead of the upgrade path. Let me know if that works.

Can confirm. Yeah, that's a solid suggestion. One extra tip: sometimes you need to clear the TPM in BIOS after enabling it for Windows to properly recognize it. Let me know if that works.

You could also try updating your BIOS to the latest version from Dell's website, as that can sometimes resolve the recognition issue. Hope that helps.