Hi Asnanperdu,
You may want to take a look at the following two article regarding moving iTunes files on a Windows machine:
iTunes for Windows: Moving your iTunes Media folder
http://support.apple.com/kb/HT1364
iTunes 11 for Windows: Change where your iTunes files are stored
http://support.apple.com/kb/PH12365
In particular, the second article has a section addressing what to do if a song or songs don't appear in iTunes after a move.
If you move songs out of the iTunes folder, you might have to add the songs to iTunes again before you can play them.
If you throw away the iTunes Library file, your songs will no longer appear in your library even though the song files are still in the iTunes folder.
If files have mysteriously disappeared, run a full scan of your computer with up-to-date anti-virus software.
To make your songs appear in the library again:
- Drag your iTunes folder (by default, located inside My Documents/My Music) to the iTunes window. You will see the songs in your library again. If the iTunes Library file was included, you’ll also see your original playlists.
- If that doesn’t work, your songs may be elsewhere on your hard disk. From the Start Menu, choose Search and search for a song by title or artist. Drag folders containing songs to iTunes to add the songs to iTunes again.If you don’t find songs by searching, check the Recycle Bin.
Cheers,
- Brenden