Vista SP1 is Complete, Update Available in March

Windows Vista Service Pack One is ready to ship, Microsoft says. PC manufacturers and consumers can expect the update in March. Microsoft has said that SP1 includes Vista OS improvements including reliability, security and performance. For a first look at those improvements read PC World's review of beta SP1.

Unlike some of the reports and speculation from last week, Vista SP1 is not officially available today. Microsoft said that it will be available to new volume licensing customers beginning March 1. Existing Vista consumers will have to wait until mid-March, Microsoft says, when the download becomes available through Microsoft's Windows Update Web site. Windows Vista users who have their systems configured to receive automatic updates will get SP1 automatically delivered in mid-April, Microsoft says.

One small catch is that Microsoft will not offer the update to a small subset of Vista PCs that have been found to have "problematic" device drivers. Those drivers, Microsoft says, were not installed properly initially and when Vista SP1 is installed OS problems ensue. For those systems, "if Windows Update determines that the system has one of the drivers we know to be problematic, then Windows Update will not offer SP1," according to the Windows Vista Team Blog.

No word on how many systems are impacted by this driver flaw. Microsoft says the fix for those systems is to reinstall the driver in question, however does not indicate what software program(s) create the driver problem.

Also over at the team blog, Mike Nash of the Windows Product Management group gets further into everything SP1 is looking to fix, including software compatibility and security. Many of the updates were made as requested by the consumers with the Customer Experience Improvement Program, Online Crash Analysis, and Windows Error Reporting.