track numbers in front of song names in windows music library, windows 7

Thank you Ric.  But what about mouse, right click, delete and nothing happens.  I went everywhere and could,nt figure out what happened after update.

This mouse problem is only in wmp.

It seems like there are still orphaned files there - we'll probably need to redo the library restore procedure a second time - but first you'll need to see if you can remove or hide the duplicates in the folder (referred to in the second quoted post). It may be worth stopping and restarting WMP but we'll try that later if necessary.

Do you want me to move all of them or just one or two?

In the first instance using 'Hide' may be the best option - WMP won't read hidden files - as many of the doubled-up ones you mentioned in the second post. Try to make sure it's the unresponsive ones you hide!

One other suggestion about backing up your music... Do you know about Google Music Player? It's extremely useful because you can upload your entire library (up to 50,000 tracks) free - they are also available for free download if you ever lose anything so particularly good for anything rare or personal. Mainstream music is matched to Google's own database but anything that cannot be matched will be uploaded from your PC. You can also add the player app to authorized mobile devices so it gives you access anywhere you can go online.