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Windows Defender
Windows Defender Solution Center
Top issues
"Check for new definitions" warning after you install Windows Defender
Error message when you run a beta version of Windows Defender: "Application failed to initialize: 0x800106ba"
Windows Defender and Windows AntiSpyware (Beta) do not run correctly when you install Windows Defender on a computer where Windows AntiSpyware (Beta) is already installed
Incorrect message when you try to remove Windows Defender from your computer: "The following applications should be closed before continuing the install"
How-to articles
Description of Windows Defender definition updates
How to troubleshoot definition update issues for Windows Defender
How to use Windows Server Update Services (WSUS) to deploy definition updates to computers that are running Windows Defender
more...
Troubleshooting
Error message when you try to install Windows Defender on a Windows 2000-based computer: "This software requires GDI+ Please load the Windows 2000 Security Software Prerequisite Pack"
Your Internet Explorer home page is reset to "about:blank" and Windows Defender unexpectedly quits in Windows 2000, Windows XP, or Windows Server 2003
Message that you may receive from Windows Defender if you also use the Immunize feature in Spybot Search & Destroy: "Internet Explorer trusted site requires approval"
more...
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Related Sites
Defender Security At Home Site
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Last Review : January 15, 2008
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