Thanks. I'm always for least risky solutions first, so I followed the last direction and did the restart of the PC.
After I restarting the printer, I saw this in Task Manager because it was using a lot of resources while everything was booting up:
> Printer Comunications System
In services > properties, I found that the .exe for this belongs to my old Lexmark Printer which is no longer hooked up. But the service is running. The current printer is a Xerox WorkCentre. Could this be a clue? (printer is working fine)
So far, the Print Spooler is not building up any CPU useage at all since the restart. So maybe nothing further is needed. Its been good for a couple hours now. I'll post back tomorrow to confirm.