Microsoft Official Introductory Tutorials 15:vista system, all security for first

Why does my screen suddenly darken when I do something, and the Continue dialog box appears?

Hey, don't worry! Before you start using Windows Vista, you need to know about a new technology-"user Account Control"-about Windows Vista computer security.

In the process of using Windows Vista, the default permissions given to the user are the lowest-whether you install the software or change the system settings, as long as you have a "shield" identity that requires your confirmation (the screen will darken) to continue, if your current account is not an administrator , you will also be asked to enter the administrator's password.

Perhaps you would ask, "Isn't this a lot of trouble?"

Of course, at first you'll feel a little bit unaccustomed, but you know what? User Account Control "effectively prevents any damage to the computer without your authorization or without your knowledge.

-for example, malware is secretly installed behind you, Trojan Horse program silently stationed in your system ... These are discovered by the "User Account Control" feature and are all reported to you to provide you with more favorable and proactive Windows Vista Security!