Patrick O'Callaghan writes:
I'm no expert either, but by coincidence I fired up a Win10 VM
yesterday for the first time in several months and (after taking ages
to update itself) it worked without problems. Is this issue only
appearing with new VM installations?
Currently the problem is limited to one particular Windows update failing to
install, reporting an obscure hex error code. Who knows what the story would
be tomorrow.
Searching for that hex error code finds only the typical B.S. about turning
off firewalls, cleaning the cache, etc. Only by searching for both the error
code and the specific update will lead you to the link I gave earlier.