As of 2015, physical copies of Windows Vista startup disks are no longer available, as Microsoft no longer supports the product. However, it is possible to create a partial startup disc on a computer already running a copy of Windows Vista.
The partial startup disk is useful for repairing a damaged copy of Windows Vista, since it allows the computer to access important files even if Windows itself cannot load. Access the startup disk creation tool in Windows Vista by typing "recdisc" into the Run command box. Place a writable CD in the computer's disk drive and run the application.