Q: Windows 7 - can't uninstall application as admin I'm trying to uninstall Microsoft Virtual PC 2007 from my Windows 7 machine. Logged in as administrator, when I attempt to uninstall I get a messagebox stating
"The system administrator has set policies to prevent this installation."
Excuse me? No I haven't. 
Immediately following, another messagebox displays:
"You do not have sufficient access to uninstall Microsoft Virtual PC 2007. Please contact your system administrator."
I didn't do anything unusual when installing or setting up the software. Just normal home use computer.
Any ideas on how to remove this software?

A: The Virtual PC may be holding some resources that prevents the uninstall. Reboot into Safe Mode and try the uninstall again. 
This page describes how to boot into safe mode.

A: In my experience with Virtual Server, this happens when Application Information service gets someway stuck or stopped. 
Rebooting is enough to fix it. 
