If you are logged on as a local administrator, you can change the behavior of UAC prompts in the local security policies for standard users.
Automatically deny elevation requests. Administrator applications cannot run. The user receives an error message that indicates a policy is preventing the application from running.
Prompt for credentials. This is the default setting. For an application to run with the full administrator access token, the user must enter administrative credentials in the User Account Control dialog box that is displayed on the desktop.
Prompt for credentials on the secure desktop. For an application to run with the full administrator access token, the user must enter administrative credentials in the User Account Control dialog box that is displayed on the secure desktop.
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