2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) - Error 0x80070643

So while running Windows Update today I ran into this error:

2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) - Error 0x80070643

It appears from some Google-Fu that for whatever reason, Microsoft is re-sending this patch through Windows Update a second time. I've read a few solutions so far, such as just 'hiding' it all the way to the usual 're-install Windows' BS. In the case of 'just hiding it, I've read that the patch was already installed anyway so hiding it is sort of a band-aid to keep it out of sight. The problem is, you can't seem to get any updates beyond this one if you just hide it. Also, searching my list of installed updates didn't show a KB4023057 installed.

So, here's what I did to solve the problem, and it's pretty painless. Also, it's a solution that I have not seen anywhere else.

(As always, just for the sake of comfort, if anything else, create a Windows Restore Point first. Press your Windows Key and start typing 'restore' ..)

First I downloaded the Windows Update Troubleshooter, and ran it a handful of times. The reason I kept re-running it is because it kept finding (and saying it successfully fixed) the same issues over and over again. Eventually I just moved along anyway, but it still doesn't hurt to run it, and 'fix' whatever it may find.

Next, I went to this page, and downloaded both KB4023057 updates so that I could manually run them:

Extract those .cab files (using Windows Explorer, or something like 7-Zip) to some temporary folder, and run them in order; first the 2.0, then the 2.1. You won't really see much happen other than maybe a command window popup for a second or two.

Once those are done, try running Windows Update again. You should be able to download and install any updates again, as usual.

Regarding this also being an issue for the 32 Bit (x86) version of Windows 10, I'm not sure; but you can try the same exact process, only get the x86 versions of the 2 .cab files from that same page that I linked above. I see no reason it wouldn't work as well.

Comment below and let us know if it worked for you too!