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How on Earth do I repair .Net on Windows 10 RRS feed

  • Question

  •   My windows updater has simply ceased to operate. Every time it fails, I get Error 0x80070643. No amount of troubleshooting, manually resetting all the elements of the updater, 'Repairing' the Updater, Running System scans, Etc. have done so much as cause the system to consider updating again. In digging further, this error is related to a corrupted .Net Install. (I've tried: http://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-10-updater-not-working/e28a22ea-3632-41e4-af47-7b35d5769ee6 ) On every other version of Windows, you can just uninstall and Re-install. Problem solved (And there's even a Troubleshooter, which I ran, but does nothing for Windows 10). Unless I've missed it (Which is entirely possible), there's no such solution for Windows 10. And Downloading 4.6 to attempt either a repair or a reinstall over the broken parts, tells me it does not work for my edition of Windows. So I'm hoping someone here has some insight. ;?
    Wednesday, November 25, 2015 10:43 PM

Answers

  • You say you have issues with Windows Update on your Win 10 system, then you say " In digging further, this error is related to a corrupted .NET Install."

    Please share the .NET version you are referring to. Also, what further digging tells you that you have a .NET issue on your system?

    Have you used this tool:

    http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx

    to verify the available .NET versions on your system?

    To do so, run the tool with the .NET version you are concerned with selected, then check the last few lines of the tool log for the test app return code. If the code is 0, the selected .NET version is correctly installed.

    If the test app fails, the selected .NET version is corrupt. In Win 10, All available .NET versions are embedded in the system, so you will need to repair system files (which, it appears, you have already tried). If repair does no help, you will have to consider a full OS repair or reinstall.

    Thursday, November 26, 2015 5:39 AM

All replies

  • Hi Spuder Z,

    Thank you for posting in MSDN forum.

    Error “0x80070643”, it means “Fatal error during installation”, this is a general error and most of the time, it means that your package was corrupted.

    First of all, I recommend you use sfc /scannow to check your OS. Repair the registry is now required to fix this issue. See here about that command:

    http://technet.microsoft.com/en-us/library/bb491008.aspx
    Another reference link:
    http://pcsupport.about.com/od/toolsofthetrade/ht/sfc-scannow.htm

    Secondly, I suggest you use .NET Framework Setup Verification Tool to check if the .NET Framework is ok. 
    http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx

    If you find there is anything wrong with .NET Framework, you may use Microsoft .NET Framework Repair Tool to do a repair,This tool detects and tries to fix some frequently occurring issues with the setup of Microsoft .NET Framework or with updates to the Microsoft .NET Framework.

    https://www.microsoft.com/en-us/download/details.aspx?id=30135


    Besides, you could try using a standalone installer to install .NET Framework 4.6 You can get the Standalone Installer from the following link:
    https://www.microsoft.com/en-us/download/details.aspx?id=48130


    Here are some common install tips of .NET Framework installation:

    ·         Turn off your anti-virus/antispyware software during installation

    ·         Install the latest Windows updates from the Windows Update site

    ·         Complete or dismiss Windows Update before installation. (and don't forget to turn it on later)

    ·         If the installation fails, you can collect the setup log file and analyze them.

    You can follow below steps to collect log files:

    1.       Try to go to your "%temp%" folder (Start Menu >>Run >> Type "%temp%).

    2.       Manually filter the .net framework logs from "%temp%" folder .


    Please upload the file to https://onedrive.live.com/   and share the link here.

    Best Regards,

    Wen Xu


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    Thursday, November 26, 2015 5:31 AM
    Moderator
  • You say you have issues with Windows Update on your Win 10 system, then you say " In digging further, this error is related to a corrupted .NET Install."

    Please share the .NET version you are referring to. Also, what further digging tells you that you have a .NET issue on your system?

    Have you used this tool:

    http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx

    to verify the available .NET versions on your system?

    To do so, run the tool with the .NET version you are concerned with selected, then check the last few lines of the tool log for the test app return code. If the code is 0, the selected .NET version is correctly installed.

    If the test app fails, the selected .NET version is corrupt. In Win 10, All available .NET versions are embedded in the system, so you will need to repair system files (which, it appears, you have already tried). If repair does no help, you will have to consider a full OS repair or reinstall.

    Thursday, November 26, 2015 5:39 AM