Spooler

Procedure:

1. Select Start.
2. Type Command.
3. Right-click Command Prompt and select Run as administrator. 
4. Type net stop spooler, then press Enter. 
5. Type del %systemroot%\System32\spool\printers\* /Q, then press Enter. 
6. Type net start spooler, then press Enter. 
7. The print queue on your Windows should now be cleared. Type exit, then press Enter to exit the command windows.