Manually Clear the Print Queue

  1. Open an admin CMD or PowerShell prompt
  2. Type net stop spooler then press “Enter“.
  3. Type del %systemroot%\System32\spool\printers\* /Q then press “Enter“.
  4. Type net start spooler then press “Enter“.
  5. The print queue on your Windows PC should now be cleared.

Source: https://www.technipages.com/windows-clear-print-queue