This is a conflict between the Vaio entertainment system and iTunes. Both want to own the music library and to call it the same name and fight to try to delete the other's content.

I believe the easiest way is to rename your iTunes directory path or move it somewhere else. Try creating a new folder in your user account called My Music and move the already created iTunes music folder contents to this. Then hold the Shift Key down when you open iTunes the next time and it will ask you for the path to the iTunes directory. Point it at your new My Music location and everything should be OK.

The only alternative would be to go to Services in Computer Management and Stop the "VAIO Entertainment Database Service" and "VAIO Content Folder Watcher" services. Then change their startup state from 'Automatic' to 'Manual'.

Oh I do apologise Blencogo I did not realise that you had already replied.