Windows 10: Updating 20H2> 21H1. Stuck at 85% then backing off

Hello,I have tried several times to update the fairly new PC.I tried:Manually configure the attributes of the "system 32 \ catroot" folder and the files it containsStop Windows Update Service wuauserv, Cryptographic Services CryptServ, and Background Intelligent Transfer Service BITSRename the "system 32 \ catroot" folder to "system32 \ catroot.old"Rename the Windows Update Temporary Files folder "Windows \ SoftwareDistribution" to "Windows \ SoftwareDistribution.old"The fourth time I try, now I get the message "Undoing the changes made to your computer ..."Open to more suggestions, plea

:)

 

KB5004476 Windows 10 2004 19041.1055, 20H2 19042.1055, 21H1 19043.1055 Win Update

Clicking on Task Scheduler Library.
The only mention of Edge in Task Scheduler that I can see I have already disabled.

 

Manually install 20H2 prior to 21H1 - possible?

Hi all - I procrastinate installing major updates to my systems, and I finally installed 20H2 on my desktop a few weeks ago. However, I was just about to install 20H2 on my laptop and saw it is no longer available (only 21H1 in Windows Update). I found a manual download of a 20H2 .msu file that matched my system (x64) (last file listed here) but that would not install, giving me a "not applicable to your computer" error.

Is it simply too late to install 20H2 now that 21H1 is officially released? I'd much rather update to a build I've already used first, but I guess I can just wait another couple months and go straight to 21H1.

I'm currently on Win 10 Pro 2004 x64.

 

Issue(s) with 21H1 Update

The Windows update list of installed updates has always been a confusing & incomplete list. I don't think you had a problem at all.

Denis