I have this issue, too.
Windows Update is looping on installing 2024-11 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 for x64 (KB5048162). The error is Install error - 0x800706be. All I can is is retry the update again.
I have tried the instructions above. I get "Access denied" on the two rename commands. "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat" is not found.
I have also performed a Windows 11 recovery, retaining all apps and data.
We all need a solution that works. Thanks!