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Windows 7: Windows updates failing, codes 666 and 80070070

03 Sep 2014   #11

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

The Event log shows this error for the latest install attempt...

Product: Microsoft .NET Framework 4 Client Profile - Update 'KB2931365' could not be installed. Error code 1638.

Installation Failure: Windows failed to install the following update with error 0x80070643: Aktualizace zabezpečení pro rozhraní Microsoft .NET Framework 4 v systémech Windows Server 2003, Vista, Windows 7, Server 2008, Server 2008 R2 x64 (KB2931365).

This problem is usually best solved by running the .NET cleanup tool to completely uninstall .NET 4.x, rebooting twice, and then reinstalling .NET 4.5.x

.NET Framework Cleanup Tool User's Guide - Aaron Stebner's WebLog - Site Home - MSDN Blogs

Download Microsoft .NET Framework 4.5.2 (Web Installer) for Windows Vista SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 SP2 Windows Server 2008 R2 SP1, Windows Server 2012 and Windows Server 2012 R2 from Official Microsoft Download

My System SpecsSystem Spec
04 Sep 2014   #12

Windows 7 Professional x64

Excellent, the problem is gone now. Thank you very much for your help!
My System SpecsSystem Spec
05 Sep 2014   #13

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

You're welcome - good luck!
My System SpecsSystem Spec


 Windows updates failing, codes 666 and 80070070

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