EMCO UnLock IT 3.0
One-Click Unlock of Locked Files
EMCO UnLock IT is a neat free utility that helps you to take control of any file or folder when it is locked by some application or system. For every locked resource, you get a list of locking processes and can unlock it by terminating those processes. EMCO Unlock IT offers Windows Explorer integration that allows unlocking files and folders by one click in the context menu.
Download: EMCO UnLock IT 3.0