Since that no one was very helpful this time and try and help, I have done the work and found the solution:
Follow this:
Your media library in Microsoft Media Player giving you fits? Just blast it and start over. This is a easy way to get WMP to reindex your music files.
If you move a ton of music around like I do, your media library through Microsoft Media Player gets jacked up. To fix it, the easiest thing to do is just to erase your old library files… and have WMP find your new files.
This will not erase your music files.
How to Get WMP to re-index your music:
1. Close Microsoft Media Player for at least 30 seconds
2. Click Start and then Run, (if you are using Windows Vista or 7type Run into the search...