Delete/Modify files while they are opened in Explorer.

      Some times this happens that a file is accidentally loaded permanently loaded in the explorer and you are unable to make changes to it. If you try to move or cut or remove the selected file an error pops through your screen that the file is already opened in the explorer.
      For this purpose we may use a software named as a "Unlocker."
You may easily download it from the highlighted link Download Unlocker 1.9.2

If you've ever been unable to delete a file in Windows, and can't figure out what program's using it, Unlocker is the solution. Have you ever seen these Windows error messages?

• Cannot delete folder: It is being used by another person or program
• Cannot delete file: Access is denied
• There has been a sharing violation.
• The source or destination file may be in use.
• The file is in use by another program or user.
• Make sure the disk is not full or write-protected and that the file is not currently in use.
• The Program is already opened in Windows Explorer.

Unlocker can help! Simply right-click the folder or file and select Unlocker. If the folder or file is locked, a window listing of lockers will appear. Simply click Unlock All and you are done!
    However the complex may be the problem but it is unlocked and modified in no time+ its size is extremely small so it can be  very handy in every scenario.