BleepingComputer.com: Vsp1cln.exe

Will be waiting awhile before using SP1 cleaning tool, “VSP1CLN.EXE.”

Once you run it can no longer uninstall SP1.

It does remove old Vista files no longer needed, freeing up space on your hard drive..

There are some switches, not sure you need them. Just Google vsp1cln.exe for more info.

It’s easy to use: at c:\ prompt

type: vsp1cln.exe

hit: enter

brings up proceed or cancel window

just follow on screen prompts!