Not Possible Once You Upgrade 2 Windows Vista Service Pack One, Just FYI. If
You Accidently Install An Unsigned Driver, Press F8 At Windows Startup 2
Temporarily Disable Device Driver Signing Requirements (So That You Can Boot
2 Windows), And Then Remove The Unsigned Device Driver, Just FYI. 4 More
Information About Windows Vista Service Pack One, Please Read It's Read Me
First before You Install It On http;//
www.microsoft.com/downloads, Just FYI.