UAC is a major feature that helped Microsoft in reducing the number of computer infections and malware attack starting from Vista. One way the infections get inside your computer is by executing itself without your permission. These files don't need a user to click on anything to execute the file. UAC feature prevents a file from getting itself executed without your knowledge. When ever an executable file wants to run to get installed, it triggers a warning from OS if you want to allow the file to run or not. The user will be able to look closely at the file that needs permission to get executed and so reduce the chance of installing suspicious software in the computer.
Turn on/Turn off UAC
- Go to control panel, select user accounts
- Select “Change User Account Control Settings”
- Always notify when programs or a user attempts to make changes to the computer
- (Default) Notify only when programs attempts to make changes to the computer
- Notify only when programs attempts to make changes to the computer and do not use secure desktop
- Never notify
The first 3 options allows you to turn on UAC with the specified settings. The last option “Never notify” will turn off the UAC.
In Vista, even though there are no different levels for setting User Account Control, the options are almost the same as that of Win 7.