Download Unlocker 1.8.5 and install it to resolve system messages like:
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.When you receive a message similar to one of the above, right click the file or folder and select Unlocker. If the file or folder is locked, Windows Explorer will list the locking processes. Just press Unlock All to clear the locks.