Check in google to know what a process is <A HREF="http://www.liutilities.com/products/wintaskspro/processlibrary/spoolsv/" target="_new">quick search in google found this</A>
If you don't have a printer or you want to run this maunually then you can disable this service by going to the control panel>administrative tools>services and there look for "Print Spooler"
Set the Startup type to either Manual or Disable, manual if you want to run the service only when you need it, disable to never run it at all.
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