UAC (User Account Control, User Account Control)
is a new technology introduced by Microsoft in Windows Vista to improve system security, which requires users to provide permissions or an administrator password before performing operations that may affect the operation of the computer or performing operations that change settings that affect other users. By validating these actions before they start, UAC can help prevent malware and spyware from being installed on or making changes to a computer without permission.
In normal use, UAC greatly interferes with work efficiency, but it is not useless. When the computer is in an extremely unsafe situation, such as a poisoned or easily poisoned environment, turning on the UAC system (it is strongly recommended to turn on the highest level) will block some dangerous operations and avoid the situation from worsening. . .
How to turn off UAC in Win7
Control Panel -> User Accounts -> Change User Account Control Settings -> Never Notify (4th level)