Database restore process confirmation before I attempt it

Good!

Now, can this folder continue to live in its current place?
Is it on a drive that’s formatted with the NTFS file system? (important!) Is there some free space on the drive, so it can keep on growing a bit?
Or would you rather have all the plex data back in its default location? Plex data folder

If it can stay where it is now, all you need is to put the path to it into this input field:
Settings - Server - General - ‘Show Advanced’ - “The path where local application data is stored”
But make sure that it does not have Plex Media Server at its end.
e.g. if you have the restored Plex Media Server folder now sitting on drive D: , only put D:\ into the input field. If you have it sitting inside another folder, then put the drive letter and the name of this folder in, e.g. D:\olddata

Afterwards, Save and then stop and restart Plex server.


If you however want this old Plex data to go into its default location, move the whole restored Plex Media Server folder to your user data folder, precisely inside
C:\Users\<YourWindowsUserName>\AppData\Local\
Do this while plex server is not running at all!