Windows Upgrade Help and more

This. Yeah, that processor isn't on the supported list, but have you checked if TPM 2.0 is actually enabled in your BIOS?

Yeah, that CPU isn't on the official list, so what exactly did the health check say was the problem?

This. Yeah, and what does the Health Check app specifically say is the problem?

You could also try using the official Media Creation Tool to bypass some of the checks. Another option is to check HP's website for a BIOS update that might enable the missing features. Let me know if that works.

You could also try using the Windows 11 Installation Assistant tool instead of the regular update, it sometimes handles these hiccups better.