Microsoft says Windows 7 users will see about 29 percent less User Account Control (UAC) messages than in Windows Vista:
User Account Control, or UAC, the security feature that debuted in Vista, was designed to reduce the chance that malware could hijack a PC by forcing users to confirm that they really meant to do such things as install new software or modify key operating system settings.
People hated it, calling it intrusive and worse, forcing Microsoft to reduce the number of UAC prompts -- pop-ups that prevented the user from doing anything but dealing with the dialogue box -- even before it launched Vista. And earlier this year, a senior-level executive cited a study that said user "click fatigue" had convinced the company to further scale back the prompts in Windows 7.
Today, Cooke claimed that Windows 7 users would face UAC significantly less often than people running Vista: "From our beta and internal testing, we expect a 29% decrease in UAC prompts compared to Windows Vista," he said.