Windows Vista SP1 RC Refresh is pre-release software and will change before the final release. Windows Vista SP1 RC Refresh is for individuals, organizations, and technical enthusiasts who are comfortable evaluating pre-release software and is provided for testing purposes only. Microsoft does not recommend installing this software on primary or mission critical systems. Microsoft recommends that you have a backup of your data prior to installing any pre-release software.

Windows Vista SP1 RC Refresh is time-limited software.

Release notes

Windows Vista SP1 RC Refresh Public Availability Program