spoolsv.exe is a Microsoft Windows system executable which handles the printing process to your local printers. This program is important for the stable and secure running of your computer and should not be terminated.
Note: spoolsv.exe could also be a process registered as a backdoor vulnerability which maybe installed for malicious purposes by an attacker allowing access to your computer from remote locations, stealing passwords, Internet banking and personal data. If unaccounted for, this process should be removed immediately.
Determining whether this process is a virus or a legitimate Windows process depends on the directory location it executes or runs from in WinTasks.
Run your Antisptware programs to see if you have this problem.