finished automatic update this morning - now BSOD

THANKS! I don't want to admit it, but I had not tried "Last Known ..."
So I am now booted up, updating AV data bases and so forth.
I assume I should take updates off 'automatic.'
Other suggestions?

Please follow the Windows Update Posting Instructions and post the requested data

If the file is too large (8MB compressed), remove the older CBSPersist cab files until the final file is below the limit - you can always post them separately after zipping them. (the forum doesn't allow the upload of bare CAB files, for a number of reasons)

Please also post the C:\Windows\windowsudpate.log file

I only thought it was cured. After shutting down for the night, the next morning no boot is possible. Same symptoms, a quick flash of BSOD then the start-up repair starts. It does not show restore points and I never ran the image for recovery.
My searches seem to indicate a way to delete an update from command window, but I don't find the steps anywhere.
I can get to the command prompt window from Recovery Options. I can see my Windows files (it's on E:\ for this machine.
You pointed me to the 'update problems' part of the forum but it seems to be only for problems after Windows starts.
I thought I could work through the tutorials by downloading the update and moving it to a USB drive then transfering it to the problem machine, but I get 'device not ready' when I try to use it on the problem computer.
Thanks for your dirctions thus far, but I sm stymied as to where to go next.

Use Last Known Good again - it should work - then immediately do the work with the update instructions (but do NOT attempt to install updates).

Last known good configuration does not work. It only restarts and cycles back to BSOD.

... and System Restore from the Repair Environment doesn't work, either?

If that's the case, then your best option may be to back up your data to external media and reformat/reinstall - if you can read the Key on your COA sticker, and have reinstall media available

OK, can you coach me or refer to a tutorial on how to back up from command line