Michael Kleef: Today I posted a short and sharp screencast just showing the differences in Vista RTM to Vista SP1 in UAC prompting. We have worked hard in making sure that the original intent of system integrity is preserved though sometimes excessive prompting was occurring for a single task. My screencast shows this difference and how we have worked to improve. This screencast links back to my previous post on UAC and Windows Vista being somehow less secure than Windows 2000.
Source:→ TechNet Blogs