Microsoft KB Archive/925544

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Error message when you try to start Windows Defender (Beta 2) in a second user account: "Access Denied"

Article ID: 925544

Article Last Modified on 10/17/2006


  • Windows Defender (Beta 2)

Beta Information

This article discusses a Beta release of a Microsoft product. The information in this article is provided as-is and is subject to change without notice.

No formal product support is available from Microsoft for this Beta product. For information about how to obtain support for a Beta release, see the documentation that is included with the Beta product files, or check the Web location where you downloaded the release.


Consider the following scenario. You log on to a computer that is running Microsoft Windows XP by using a standard user account. You start Windows Defender (Beta 2). You use Fast User Switching to log on to the computer by using the administrator user account. Then, you start Windows Defender (Beta 2). In this scenario, Windows Defender closes unexpectedly, and you receive an error message that resembles the following:

(0x80070005) Access Denied


This error occurs if you use Fast User Switching to try to run Windows Defender (Beta 2) in a standard user account session and in an administrator user account session at the same time.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Additional query words: WinDefender antispyware spyware malware trojan

Keywords: kbaccounts kbexpertisebeginner kbtshoot kbprb KB925544