What is the improvement in UAC in Windows 7 systems?

UAC (user Account Control), which is a new technology introduced by Microsoft in Windows Vista to improve system security, requires users to perform operations that might affect the operation of the computer or to perform changes that affect the settings of other users. Provides a permission or administrator password. But in the Vista system, the user brought a lot of inconvenience, some of the newly installed programs can not run, looking for a half-day to find the reason is must be right key to run in the administrator mode is normal, and frequent security warnings, but also let the computer users scared, so not the user shut down UAC. To do so is to dispense with annoyance, but there is a security risk, and Windows 7 avoids this, simplifying and automatically judging, and proposing the so-called UAC slider mode--you can control which type of application pops up and which programs don't need a hint window.

Open the Control Panel, and then enter the controls Paneluser Accounts and Family safetyuser Accounts to adjust.

These four levels are defined as follows:

1. Notification of changes to each system. This is the Vista mode, any system-level changes (Windows settings, software installation, etc.) will appear in the UAC prompt window.

2. Send a prompt only when the program tries to change the computer. Prompts will not appear when the user changes Windows settings, such as Control Panel and administrator tasks.

3. Only when the program tries to change the computer prompts, does not use the security desktop. This is similar to the 2nd, but the UAC prompt window appears only on the general desktop, not on the secure desktop. This is useful for some video drivers because they make the desktop transition slow, and note that the secure desktop is a hindrance to software that tries to disguise the response.

4. Never prompt, which is equivalent to completely turn off UAC functionality.

Many people said that the slider is a good choice, of course, the 1th is the safest setting. But even if the 1th has been attacked, the security of the Microsoft system is indeed worth questioning.

Windows 7 UAC can use the slider to select a hint level, while the Vista system has only prompt mode and no prompt mode. The safest setting is usually the most annoying, but very safe.