When you install Vista SP1, a backup of all replaced files is made. This is done so you can roll back to pre-
SP1 if you desire. SP1 has been out for some time now and many of you will no doubt be satisfied with using
it. In this guide, you will learn how to reclaim disk space taken up by the Vista SP1 install.
You can start vsp1cln.exe with the following command:
Start – Run – vsp1cln.exe
The vsp1cln.exe process is started.
Are you sure??
After running this tool, you cannot uninstall Vista SP1.