Well, if you are like me and run Windows Vista, and you’ve successfully installed the new service pack 1 update, then you may be interested in getting some disk space back.

When you install Windows Vista Service Pack 1 on your computer, the SP1 installer will not remove the older versions of Vista files from the hard drive. This is because the older files may be required in case you decide to uninstall SP1 later from the system.

Digital Inspirations has the details.