Some time in early June my computer started to slow down. The boot up would take a long time because of a lot of hard drive activity. While using the computer it would pause for more than 5 minutes because of a lot of hard drive activity. Also when I go in to Control Panel / Printers it took a long time to list the printers. I traced it to the Print Spooler. When it is disabled, Windows starts up normally and the computer doesn't pause.
I used Process Monitor, Autoruns and Process Explorer from Sysinternals.com to find out that SPOOLSV.EXE was the cause.
I uninstalled both my printers and deleted the drives from Server Properties in Control Panel / Printers. The only printers left are "Microsoft office Document Image Writer" and "Intuit Printer"
During the time that there is a lot of disk activity(computer is unresponsive) Process Monitor shows that SPOOLSV.EXE is accessing the following 2 folders A LOT:
I have Norton Internet Security 2009 installed and there are no threats detected. I used Autoruns to check for programs that should not be starting up.
On June 4 and 10 some Vista and MS Office patches were installed. I uninstalled the Vista patches.
Vista Home Premium
Pentium dual core
88gigs free on HD