OK,

So I have been messed around since installing a new drive, and Windows 7 has messed up some of my music.

How the hell do I edit some of the details? I can't seem to get this done?

I will click on a file in the library, as an example track 1 states unknown though the rest look fine, so I try and edit this, but clicking does nothing, there is a little bar at teh bottom I can double click, but I get asked for admin rights I click continue and get refused as I don't have permision from myself to edit them?