Service Pack Cleanup Tool

Here’s a cool SP2 feature: ditching old Vista RTM and SP1 backup. Here’s how:

> Compcln.exe

And there you go: you’ve just recovered 900MB on my system drive. A must. Just beware:

This operation will make all service packs and other packages permanent on this computer. Upon completion you will not be able to remove any cleaned packages from this system.

As expected.