The Book

1. Start CMD with administrative rights
2. Find service you want to kill (in this case “spooler”)

C:\Windows\system32>sc queryex | findstr /I spoo
SERVICE_NAME: Spooler
DISPLAY_NAME: Print Spooler

1. Now we know the right name of service (SERVICE_NAME: Spooler) and we can find its PID

C:\Windows\system32>sc queryex Spooler |findstr PID
        PID                : 3480

1. With known PID wi can now kill the process