I've had a problem with services.exe hanging up my machine for 2-3 minutes at a time. I tried all the remedies I could find but nothing cured it, except a complete format and OS reinstallation. I suspect some sort of virus but none of the tools detected anything unusual. Strange. All the more reason to have good backups of stuff you care about.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma