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If KB3122947 returns Error 0x80070643 after downloading on Windows 10, try this

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If when running Windows Update on Windows 10, you get KB3122947 and it returns Error 0x80070643 after downloading, there's good news.  The update actually downloaded, it just won't install!  :rolleyes:  Typical Microsoft fuck up.  However, there's an easy solution.



Open a Command Prompt with elevated privileges.  Find the file windows10.0-kb3122947-x64.cab with a Search in Windows and discover its location.  Copy and paste y this into the Command Prompt:

dism /online /add-package /packagepath:C:\Windows\SoftwareDistribution\Download\c4a1b8896ce9fbfea96c1ee6890d52a5\windows10.0-kb3122947-x64.cab



In /packagepath:C:\Windows\SoftwareDistribution\Download\c4a1b8896ce9fbfea96c1ee6890d52a5\windows10.0-kb3122947-x64.cab change the C:\ location to the location of windows10.0-kb3122947-x64.cab on your system.  For most people, what I copied and pasted above should be fine, but may not always be the case.

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