Windows Vista SP1 (Service Pack 1) Officially Released to Consumers

Windows Vista Service Pack 1 (SP1) is an update to Windows Vista that addresses feedback from our customers. In addition to previously released updates, SP1 will contain changes focused on addressing specific reliability, performance, and compatibility issues; supporting new types of hardware; and adding support for several emerging standards. SP1 also will continue to make [...]

New compatibility, reliability, and stability update for Windows Vista

This update improves the compatibility, reliability, and stability of Windows Vista. This update includes the following improvements:

It extends the battery life for mobile devices.
It improves the stability of portable computers and of desktop computers that use an uninterruptable power supply (UPS).
It improves the reliability of Windows Vista when you open the menu of a startup [...]

Microsoft Releases Windows Vista Performance and Reliability Updates

Microsoft today has released a performance and a reliability update for Windows Vista. This is one of the steps towards Windows Vista Service Pack 1.
Update for Windows Vista (KB938979)
This is a performance update. Install this update to improve the performance of Windows Vista in certain scenarios.
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Update for Windows Vista (KB938194)
This is a reliability update. [...]