I find the most convenient way to empty the Recycle Bin and delete other unnecessary cache files that leave a digital trail is to use the Windows Disk Cleanup utility.
To use Disk Cleanup
Double-click My Computer.
Right-click on a hard disk drive.
Select Properties.
Click the Disk Cleanup button on the General tab.
Caution | Do not check Compress Drive or Allow Indexing Services. They elongate disk cleaning and bog down the OS. |