It is now ca. 20:40 UTC, Aug 6th 2020, and Windows Update is again broken here, in Windows Vista SP2 32-bit ...
When I opened the WU window I got:
Notice that WU did last perform a successful check on Aug 6th 2020, 00:57 EEST (that was Aug 5th 21:57 UTC); as expected, the check had ended with a Windows is up to date message () ; when I click "Check for Updates", I end up with:
i.e. no dice, but with a different Error Code this time (80244019)
Something similar happens when I manually check Windows Defender for updated definitions:
Normally, the manual check would return a "No updated definitions were found for Windows Defender" result (or something to that effect...), but now it quickly errors out like this:
I think we can say, with a fair degree of certainty, that WU on Vista IS DEAD...
Of course, there are various online articles pertaining to Windows Error 80244019 (or 0x80244019), e.g.
https://blog.pcrisk.com/windows/12473-how-to-fix-widows-update-error-code-80244019
which states:
but in this case I think it is both a "Windows Server problem" (M$ shut the door to it, took it down, etc. ) as well as due to "computer system and configuration" (we have the Vista OS, which M$ vehemently wants to swipe off the face of the Earth...).
FWIW, I have WS2008 M$ updates installed that enable SHA-2 code-signing support:
so I had, at least, expected that I would still be able to connect to the newer SHA-2 WU endpoints, though, of course, nothing would come down from there, as Vista 6.0.6003 is detected (not being proper Vista SP2 & not being proper WS2008 SP2) and fenced off...
PS: KB4474419 is v4 ; please also notice that the last thing ever WU fetched on this machine (then at version 6.0.6002) was a WD def update, on July 6th 2019; after that date, nada !
EDIT: