Can't make update messages go away

[OttoKerner]

Plex for Windows won't run

Open the task manager (CTRL+Shift+Esc) look for any processes simply called plex and shut them down Then empty out the configuration folder C:\Users\<username>\AppData\Local\Plex Careful! Don’t empty out the folder named C:\Users\<username>\AppData\Local\Plex Media Server or you will lose all libraries!