Try it this way:
- Use the repair script to ensure that the server database is not damaged: DBRepair/Windows at master · ChuckPa/DBRepair · GitHub (You can use either the .bat or the .ps1 version.)
- Stop/quit/end Plex Server with the tray icon
- deinstall Plex Server with the regular ‘Apps’ control panel of Windows
(do not use 3rd party ‘Uninstaller’ software like Revo etc.
do not use “Registry Cleaner/optimizer” software like CCleaner et al) - for safety, reboot Windows
- download the installation exe of the newer version and install it
(If you want to install an older version of PMS, take a look into %LOCALAPPDATA%\Plex Media Server\Updates)
