Have you ever tried to delete a file only to be presented with a cryptic message about the file being locked? Ever seen a mysterious ‘access denied’ prompt that really shouldn’t be there? Install Unlocker, and you’ll be able to take control. It adds a new option when you right-click a file; select Unlocker and you’ll be given the option to remove those locks and delete, rename, or otherwise alter those files without having to track down the program that has its hooks into them.
Note: Be careful with the installer for Unlocker, since it will (by default) install some random software that you neither need or want on your PC. Make sure you uncheck the appropriate boxes. Secondly, be careful how you use it. Deleting random system files is a particularly bad idea, so reserve your use of Unlocker for those documents you can stand to lose.
take control Unlocker is a free app that enables you to easily open locked files.