Windows 7 changes the game a little bit for working with Virtual PC. Once you’ve downloaded Virtual PC and click on the “Windows Virtual PC” program item, nothing will seeming happen, other than the opening of an explorer-type window in open to the Virtual Machines directory.
This behavior is by design.
To configure or create a virtual pc virtual machine in Windows 7, simply navigate to the top of this explorer window and click “create virtual machine” .
From here the steps to configure your virutal pc virtual machine are pretty similar to the steps they had been in previous virtual pc versions.