Microsoft KB Archive/925556

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When you uninstall Windows AntiSpyware (Beta), all files may not be removed from the System32 folder

Article ID: 925556

Article Last Modified on 10/23/2006


  • Windows Defender


When you uninstall Microsoft Windows AntiSpyware (Beta), the following four files may not be removed from the System32 folder:

File name Date Time File size
Gccollection.dll 11/15/2005 12:12 PM 126,680
Gcdef.dll 08/04/2004 04:00 AM 76,800
Gctypliba.tlb 04/22/2005 12:58 PM 328,128
Gcuncompress.dll 11/15/2005 12:12 PM 95,448

This problem occurs if the Windows Genuine Advantage Validation Tool is installed on the computer after Windows AntiSpyware (Beta) is installed.


To resolve this problem, manually delete these files after you install Microsoft Windows Defender. Windows Defender does not require these files.


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

Keywords: kbtshoot kbprb kbexpertiseinter kbdefenderrtwswept KB925556