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Knowledge Base (KB) Articles:KB936330
Install Windows Vista SP1 Release Candidate through Windows Update
Windows Vista Service Pack 1 RC Refresh is available to Beta testers through Windows Update. Experience the WU installation path for Windows Vista SP1 by following these simple steps and give us your feedback to improve our quality.
The Windows Update Experience
Systems running on Windows Vista RTM typically require two or three updates before SP1 can be installed. These updates are permanent on your Windows Vista systems. Windows Update will detect your system configuration and offer the prerequisite packages that are applicable to your system. Based on the state of your system, Windows Update will offer you all the applicable prerequisite packages and SP1 in a sequential order. For details, please see the instructions below.
The prerequisite updates consist of two updates which service specific Windows components prior to the installation of the service pack and a third update which services the installation software built into Windows Vista. The following are the prerequisite updates.
- KB935509 This updates is only required on Windows Vista Enterprise and Windows Vista Ultimate editions (which have Bitlocker capabilities). This update is required prior to installing KB938371, the second prerequisite update and is required to prevent potential loss of data on Bitlocker encrypted systems during updating.
- KB938371 This update consists of fixes for several components (including the TrustedInstaller), increases the success rate for installing the service pack and enables the service pack to be uninstalled successfully.
- KB937287 This is an update to the “Servicing Stack” or the Windows Vista component installer technologies built into Windows Vista. This update enables the built-in installer to properly and successfully install the service pack.