Bonjour
Some times i had problems deleting files or folder from my PC
When i try to delete any file or folder a dialog box appears tell me that this file or One of the files in folders are in use.
I really used to be pissed off!! :(
Now Lock hunter can used for the same problem which was earlier faced by a no. of users same as me.
You can download from m http://lockhunter.com/
P.s-> hope it helped you :)