How do I remove files from iTunes which have been deleted on disk?
I've found the easiest most reliable solution yet! No scripts, no loss of playcounts/ratings etc.


Create a new playlist, say temp.
Select all your the tracks you want to deal with and drag and drop them to the playlist. The new playlist will only contain valid tracks. All invalid tracks will be marked with the exclamation mark.
Switch to the playlist and select all the tracks, then right-click and Uncheck Selection
Switch back to Music and sort by the checkmark - now all the invalid tracks are grouped together!
Select them all and delete!


You can then go and Check the songs again to make sure they get synced to devices.