IMPORTANT: The following procedure permanently deletes all files and folders which are already in the Recycle Bin (from all user accounts in the system) and cannot be recovered.
1. Open an elevated Command Prompt by clicking Start > All Programs > Accessories, right-click Command Prompt, and select Run as administrator.
2. Type the following command
rd /s /q C:\$Recycle.bin
press Enter:
This clears out the $Recycle.bin folder for C:\ drive. You may have to do this for each hard disk partition in your system, by changing C to the drive letter of the other drives.