For upgrade problems you can perform an in place upgrade repair with a Windows 11 iso.
https://www.elevenforum.com/t/repair-install-windows-11-with-an-in-place-upgrade.418/
https://www.elevenforum.com/t/download-official-windows-11-iso-file-from-microsoft.1009/
https://www.microsoft.com/en-us/software-download/windows11
Before the upgrade uninstall any of these non-Microsoft software:
a) antivirus
b) firewall
c) drive encryption
If there is any failure performing the in place upgrade repair then run setupdiag and post a share link into this thread using one drive, drop box, or google drive.
https://learn.microsoft.com/en-us/windows/deployment/upgrade/setupdiag
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