Clear Printer Queue

a)   Click on Windows Vista/Windows 7 Start orb and type Command in start menu search field.
b)   From the list select and right-click Command Prompt and select Run as administrator.
      (This will give you an elevated command prompt).
c)    Type “net stop spooler” into command prompt window without the quotes and
       then press Enter.
       You should get a confirmation that the print spooler is stopping.
d)   Then type “del %systemroot%\System32\spool\prtiners\* /Q” without the quotes
       then press Enter.
e)   Then type “net start spooler” without the quotes and then press Enter.
f)    Type exit and press Enter to exit the elevated command window.