I’ve been having Windows Update failures (I’m on Windows Insider Beta Channel) on my SER 6 Max for about a year. Until recently, I was doing the short-term fonts delete fix (see below). Last night I did the proper fix and it was a lot easier than expected. Good preparation and testing afterward is the key to make sure EFI / bootmgr is healthy.

If you haven’t seen this issue with Windows update, you will soon: