Before upgrading to Windows Service Pack 3, Leo Notenboom of Ask-Leo.com recommends doing a complete virus and spyware scan, backing up your computer, and verifying that you have at least 1.5 gigabytes of available disk space. To learn more, read these two articles from Microsoft and Ask Leo.
Cite This Page
Feldman, Barbara. "Before Upgrading to Windows Service Pack 3,." Surfnetkids. Feldman Publishing. 19 Aug. 2008. Web. 29 Nov. 2014. <http://www.surfnetkids.com/tech/322/before-upgrading-to-windows-service-pack-3/ >.