Select the product you need help with
- Internet Explorer
- Windows Phone
- More products
How to use User Account Control (UAC) in Windows Vista
Article ID: 922708 - View products that this article applies to.
This article describes the User Account Control (UAC) feature in Windows Vista. This article also describes how to run a program as an administrator in Windows Vista.
User Account Control (UAC) is a new feature that helps prevent malicious programs, also known as "malware," from damaging a system. UAC stops the automatic installation of unauthorized applications. UAC also prevents unintended changes to system settings.
You receive a UAC prompt when you do any of the following:
How to run a program as an administratorWhen you run a program function or a system function, you may receive a UAC prompt. Most of these programs are legacy programs. Newer versions of the same programs do not trigger UAC. You cannot set UAC to automatically run a program as an administrator without the user being prompted.
In Windows Vista, some programs only run correctly if you run them as an administrator. You may be able to run newer versions of the same programs without having to run them as an administrator.
Note A security risk may result by using administrative credentials to run an unknown program. Only run programs that you trust as an administrator.
Important These steps may increase your security risk. These steps may also make the computer or the network more vulnerable to attack by malicious users or by malicious software such as viruses. We recommend the process that this article describes to enable programs to operate as they are designed to or to implement specific program capabilities. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this process in your particular environment. If you decide to implement this process, take any appropriate additional steps to help protect the system. We recommend that you use this process only if you really require this process.
To run a program as an administrator, follow these steps:
For some program icons, the Run as administrator option is not available on the shortcut menu. For these program icons, follow these steps:
(http://support.microsoft.com/kb/969417/ )How do I enable User Account Control in Windows Vista?
For help with common system maintenance tasks in Windows Vista, visit the following Microsoft Web page:
Fix problems with common system maintenance tasks
Article ID: 922708 - Last Review: September 23, 2011 - Revision: 5.0