Plex Server Broken After Windows 10 Update

Server Version#: 1.19.3.2764
Player Version#: Unsure

Been using Plex fine for years and last night I did a Windows update, then I get a bunch of errors when I rebooted, and now Plex doesn’t work. I can’t repair/uninstall or reinstall using the latest installation package from the Plex site.

The Server Setup gives the error 0x80070643 when I try to reinstall. There are a lot of errors it throws now depending on what I try. I could post them all if it would help, but maybe this is a known or familiar issue?

Honestly not even sure where to start debugging this…

plexerror1 plexerror2
I’ve attached screenshots of the errors I get when I reboot now to see if that helps.

I managed to fix it when I found this page: https://support.plex.tv/articles/202967086-windows-errors-trying-to-upgrade-install-or-uninstall-plex-media-server/

It referred me to the Program Install and Uninstall troubleshooter which I ran and it gave me a list of programs to remove. I found Plex and let it rip. It went on for a few minutes to the point where I thought it might have been hung up but it eventually did unistall Plex. I then went to add/remove programs and used the regular Windows uninstaller which I think basically just removed the shortcut icon but at that point Plex was no longer listed as an installed application.

Then I tried to run the latest installer downloaded from the website but it was still breaking on installation saying it didn’t have access to install some piece. So I rebooted my computer and on reboot Windows said that it was repairing my media drive. I don’t know why exactly it needed to do this but it completed successfully. Then it told me it couldn’t mount all my drives but I checked and they were all there. So I rant the installer again and that time it worked. Now Plex is back up and running!

I know that’s a lot but maybe it’ll help a poor soul in need some time in the future. Good luck.

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