zdnet[.]com/article/windows-11-upgrade-failed-these-are-my-4-most-powerful-troubleshooting-secrets/
Number 3 on his list is the one that frankly I've used most often -- try again, *and MAKE SURE the Box To Check For Updates in setup Is CLEARED. Number 1 is to check for updates to drivers and firmware [BIOS], number 2 is to check Microsoft's list of known incompatibilities, and number 4 is to use Microsoft's SetupDiag tool -- learn.microsoft[.]com/en-us/windows/deployment/upgrade/setupdiag