Windows 10: .NET 3 and 5 update failures

Discus and support .NET 3 and 5 update failures in Windows 10 Software and Apps to solve the problem; I'm running Windows 7 Home Premium and I'm trying to update my copies of .NET 3 and .NET 5. I need these current for my Python work. Every time that... Discussion in 'Windows 10 Software and Apps' started by TogaedPancake76, Jan 10, 2022.

  1. .NET 3 and 5 update failures


    I'm running Windows 7 Home Premium and I'm trying to update my copies of .NET 3 and .NET 5. I need these current for my Python work. Every time that Windows Update tries to update these, it fails. I've tried running each singularly or together. Same results. Rebooting and trying again as the first thing I do. Same result.Ironically, the error code is 666...The only thing that has worked has been a full uninstall of the relevant .NET, followed by a reinstall of the newest version. I'm tired of hunting down the newest version and want the updater to do its updates without forcing me into t

    :)
     
    TogaedPancake76, Jan 10, 2022
    #1

  2. WU .net 5.0.8 & 5.0.10 repeated install failure

    It looks like -
    The 5.0 SDKs(3) installed on10 Mar; 12 Oct; 5 Nov (this one came from VS 2019 Community).

    An ASP.net was also installed 12 Oct.


    .NET 3 and 5 update failures [​IMG]


    The only manual installs were in the past 2 days trying to get this pc to accept the Dot Net updates.

    I have researched this on the web for several days trying all the suggested fixes and there has been no success.

    I installed manually .Net Runtime hoping that would correct the problem, which it did not.
     
    FredZiffel, Jan 10, 2022
    #2
  3. phrab Win User
    KB4586876 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 Jan. 12 Win Update

    Hi Denis:
    Thank you for your detailed instructions!! This will probably take several days & I'll keep you updated.

    I did steps 1 & 2. This installed more updates than I could count...something like 20-30. However, KB4586876 was not listed. Unfortunately, I had to undo several things (I now remember why I didn't update all MS products). I have Word, Excel, & Access from 2003, as well as Word & Access 2016. Updating MS products caused a "file validation" problem whenver I opened a .doc file. I fixed that (with a registry hack). However, it did something to Word 2016, where all my .doc & .docx files were opened by Word 2003 & Word 2016 wasn't an option under "Open with...". I ended up restoring everything from Macrium Reflect.

    I will now start with step 3.2.

    - - - Updated - - -

    Thank you. After checking again, my settings are the same as yours. Also, As Denis pointed out, I had looked at the wrong key. I checked the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full & found it to be the same as yours.

    Hi @Try3 & @Ghut:

    I tried to install the runtime from Ghut post #22 (Denis: your Step 4.2) & it said that I already had the latest versions installed. I then tried to reinstall .Net Framework & went to the catalog:
    PHP Code: 2021-01 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 2004 for x64 (KB4586876)
    Last Modified: 1/8/2021
    but I couldn't download it. Basically, nothing happened & I got this image:

    .NET 3 and 5 update failures [​IMG]

    I tried Step 5.2 in post #26, but I show both 3.5 & 4.8 installed.

    I guess I'll try Step 6.2 now...turning off .NET Framework 3.5 &4.8 & turning them back on. Before I do, do I need to reboot in between. I don't want to screw this up.

    Thanks again to both of you!!
     
    phrab, Jan 10, 2022
    #3
  4. .NET 3 and 5 update failures

    .NET Framework 3.5 error 0x80070002 Windows 10

    Hi,



    Welcome to Microsoft Community.

    I understand your concern. I will do my best to fix the issue.



    To assist you better I would like to know, which game are you trying to play?



    Let’s try simple troubleshooting steps and check if this helps in resolving the issue. I suggest you to uninstall and reinstall the
    .NET Framework 3.5. Follow the below steps.


    • Press Windows key + X and select
      Control Panel.


    • Click on Programs and features, click on
      Turn Windows features on or off on the left pane.

    • Click on .NET Framework 3.5 on the Window pop up to expand.

    • Uncheck the box and check on Ok.
    • To re-install it back check on the box and click on OK.
    Also, I suggest you to install all the Windows update.



    Hope this helps. Keep posting us with the status we will be glad to help you.
     
    Billion Debbarma, Jan 10, 2022
    #4
Thema:

.NET 3 and 5 update failures

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