James Zhou 2000

Thumbs.db file is a system file which is hidden by default. Under a network drive, you will not be able to delete that directory if there is a hidden thumbs.db file in it. The trick is to use command line to force a delete. First, if you can't see the mapped network drive, use net use command to explicitly map the drive (even though that drive might be accessible in windows explorer), and then enter the directory, and use the following command (remember to run dos as an administrator mode) :
    del /ash /s thumbs.db