Windows update keeps failing to install KB2487367 Security Update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86 (KB2487367) When I try to install it manually it says: KB2487367 does not apply, or is blocked by another condition on your computer. Can someone help me get off of this rollercoaster of crazy?

You might try Control Panel|Add Remove|Microsoft .NET Framework 4.0|Change/Remove|Repair, reboot, then try the KB again. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows]

You might try Control Panel|Add Remove|Microsoft .NET Framework 4.0|Change/Remove|Repair, reboot, then try the KB again. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Dave, Attempting this fails with a generic message, this is the clue given in the log: Creating new Performer for MSI item [9/12/2011, 7:43:16] Action: Performing Action on MSI at C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\SetupCache\Extended\netfx_Extended_x86.msi... [9/12/2011, 7:43:16]Log File C:\DOCUME~1\ADMINI~1.THE\LOCALS~1\Temp\Microsoft .NET Framework 4 Extended Setup_20110912_074300619-MSI_netfx_Extended_x86.msi.txt does not yet exist but may do at Watson upload time [9/12/2011, 7:43:16]Calling MsiInstallProduct(C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\SetupCache\Extended\netfx_Extended_x86.msi, EXTUI=1 REINSTALLMODE=pecsmu REINSTALL=ALL [9/12/2011, 7:43:23]MSI (C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\SetupCache\Extended\netfx_Extended_x86.msi) Installation failed. Msi Log: Microsoft .NET Framework 4 Extended Setup_20110912_074300619-MSI_netfx_Extended_x86.msi.txt [9/12/2011, 7:43:23]PerformOperation returned 1635 (translates to HRESULT = 0x80070663) [9/12/2011, 7:43:23] Action complete [9/12/2011, 7:43:23]OnFailureBehavior for this item is to Stop. [9/12/2011, 7:43:23] Action complete [9/12/2011, 7:43:23]Final Result: Installation failed with error code: (0x80070663), "This patch package could not be opened. Verify that the patch package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer patch package. " (Elapsed time: 0 00:00:23). Any further tips? thanks, -Drew

You may need to use the .NET Framework Cleanup Tool How to fix MSI software update registration corruption issues http://support.microsoft.com/kb/971187 When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603" http://support.microsoft.com/kb/923100 Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows]

Any luck with this, drew?