Windows Vista Service Pack 1:Unlimited installation and compatibility support

Unlimited installation and compatibility support is available at no charge until March 18, 2009.
https://support.microsoft.com/oas/default.aspx?ln=en-us&x=8&y=7&prid=11274&gprid=500921

How to temporarily prevent installation of Service Pack updates through Windows Update

A blocking tool is available for organizations that would like to temporarily prevent installation of Service Pack updates through Windows Update. This tool can be used with:
Windows Server 2003 Service Pack 2 (valid through March, 2008)
Windows XP Service Pack 3 (valid for 12 months following general availability)
Windows Vista Service Pack 1 (valid for 12 months following general availability)

http://www.microsoft.com/downloads/details.aspx?FamilyId=D7C9A07A-5267-4BD6-87D0-E2A72099EDB7&displaylang=en

How to Disable Microsoft Update and return to Windows Update

Microsoft Update provides the same updates you find on the Windows Update website and more. Microsoft Update is designed to make it easier for you to update Windows and your Microsoft products in one place.


How to stop using Microsoft Update and return to Windows Update:-


1]Open Microsoft updat's site.


2]Click on Change Settings.


3]Scroll down the page u will get the following option:-






4]Just check the box against Disable Microsoft Update software and let me use Windows Update only.
5]click Apply changes now.

Windows XP Service Pack 3 Release Candidate 2 Refresh

Microsoft is allowing Windows XP Service Pack 2 machines to be offered Windows XP Service Pack 3 Release Candidate 2 Refresh via Windows Update. You may also download standalone update packages for Windows XP SP3 RC2, in English, German, and/or Japanese. Windows XP Service Pack 3 will be offered on Windows Update when Service Pack 3 releases in the first half of 2008.
http://www.microsoft.com/downloads/details.aspx?FamilyId=114F3599-12AF-42B2-AAB1-B969A62C68A7&displaylang=en