short version:

1.  Go to Start, Control Panel and Administrative Tools. Double click on Services icon.

2.  Scroll down to the Print Spooler service and right click on it and select Stop.

3.  Delete all files in C:\WINDOWS\System32\spool\PRINTERS

4.  Restart Print Spooler

1. Go to Start, Control Panel and Administrative Tools. Double click on Services icon.

2. Scroll down to the Print Spooler service and right click on it and select Stop. In order to do this, you need to be logged in as Administrator. At this point, no one will be able to print anything on any of the printers that are being hosted on this server.

3. Next you need to go to the following directory: C:\WINDOWS\System32\spool\PRINTERS. Delete all the files in this folder

4. Now you can go back to the Services console and right-click and choose Start for the Print Spooler service!