Unlocker is the useful solution programme to the messages which does not allow any file to open while using. These messages can be “The file cannot be open as it is being used by another person”, “Make sure the disk is not full or write protected” etc. This tool is basically very small sized software which helps in renaming, move and deletes the file. The tool has an effective interface which fixes the issue with one click. The application resides in the system tray and it gets trigger when any above mentioned message comes up and the tool unlocks the processes or run the process after the quick reboot. A recommendation for very handy utility for use.