UAC is a new technology introduced by Microsoft in Windows Vista to improve system security. It requires users to provide permissions before performing operations that may affect the operation of the computer or performing operations that change settings that affect other users. or administrator?password. By authenticating these operations before they are initiated, UAC can help prevent malware and spyware from installing on or making changes to your computer without your permission. \x0d\When permissions or passwords are required to complete a task, UAC will warn the user with one of the following messages\x0d\1. Windows requires your permission to continue, which may affect Windows functions or programs that require your permission to other users of this computer. permission to start. Check the name of the action to make sure it is the function or program you want to run. 2. Programs require your permission to continue. Programs that are not part of Windows require your permission to start. It has a valid digital signature that identifies its name and publisher, which helps ensure that the program is exactly what it claims to be. Make sure the program is exactly what you want to run. \x0d\3. An unrecognized program refers to a program that does not have a valid digital signature provided by its publisher to ensure that the program is a program that does not have a digital signature. When elevating rights, UAC prompts the program to declare the program. This doesn't necessarily indicate danger, as many older legitimate programs lack signatures. However, special care should be taken and this program should only be allowed to run if it was obtained from a trusted source, such as the original CD or the publisher's website. \x0d\Method 1: Start - Control Panel - View as large icon - Action Center - Change User Account Control settings - Move the slider to the bottom. \x0d\Method 2: "Start" menu - click "Account name avatar icon" - change user account control settings - move the slider to the bottom.