Based on Vista and then upgrade: Win7 UAC Detailed

What is UAC?

UAC (User Account Control), Chinese translation for user account control, is a new technology cited by Microsoft in Windows Vista and Windows 7. The main function is to automatically trigger UAC when performing some operations that affect system security. After the user confirms, it can be executed. Because most of the malware, Trojans, and ad plugins are like when you enter the computer: copy the files to a directory such as Windows or Program Files, install drivers, install ActiveX, etc., and these operations will trigger UAC, users can be in UAC Prompt to prevent the running of these programs.

The ability to trigger UAC operations includes:

• Modifying Windows Update configuration;

• Adding or deleting user accounts;

• Change user's account type;

• Change UAC settings;

• Install ActiveX;

& #8226; Install or uninstall the program;

• Install device drivers;

• Modify and set parental controls;

&# 8226; Add or modify the registry;

• Move or copy files to Program Files or Windows directory;

• Access other user directories

UAC is annoying

Yes, Microsoft has been joining UAC since Windows Vista, which has become one of the critics of VISTA dissatisfaction, because Vista does not set UAC level like Win7 ( In fact, UAC of Windows7 is also very annoying. The general configuration of the computer at that time is also very low, so people pop up on this move, and the guy who locks the screen is very sick. evil.

UAC is perfect in Windows 7

Because UAC is too annoying, Microsoft has added UAC's level setting function in Windows 7, which corresponds to 4 levels:

Top level:

Under the advanced level, "Always notify" (ie fully open), under which the user installs the application, upgrades the software, and the application operates in any case When the system makes changes, changes Windows settings, etc., a prompt window (and enables the secure desktop) will pop up, requesting user confirmation. This shows that this level is the safest level, but it is also the most "troublesome" level. It is suitable for multiple users sharing a single computer, limiting other standard users, and prohibiting them from changing system settings at will.