No, ya thunk?

And even more surprising, this *is* a valid Office 2007 installation. Now I have to figure how to validate its validness. Woo, surprise!

Download and install a Windows application. Doesn’t matter which one (optional, do a brief test run).
Uninstall it, reboot, get a bottle of your favourite alcoholic beverage (alcohol percentage of 40% and above, please).
Click on Start> Run> type “regedit”> hit F3 and type the name of the app (or the executable name e.g. My Cool App => mcool.exe), run the search. Take a swig for every registry key not removed.
Go to your Documents and settings, take a swig for every item left there. Start menu items is a bonus swig.
A large gulp if files are left at Program Files.

Try a search throughout the system for anything else related. You’ll be probably on your second bottle, so this is highly up to your taste.