Windows 8 and 8.1 Forums


Question about .NET Framework updates

  1. #1


    Posts : 191
    Windows 8.1 (Update 1) Pro 64 bit

    Question about .NET Framework updates


    Good day,

    A while ago a game on my PC needed .NET Framework 3.5 so I enabled it in the Windows-features options. After that, there were some security updates for .NET Framework that I installed through Windows Update. After I finished the game I uninstalled it and also disabled the .NET Framework 3.5 again via the Windows-features options. However, I can see in the updates section of the Windows programs and features that the .NET Framework security updates are still installed on my PC.

    There's a new game I installed yesterday that needed the .NET Framework 3.5 so I enabled it again. However, Windows update is not giving me any of the security updates again since they're already installed on my computer.

    Question: Do these updates regarding .NET Framework, even after disabling and enabling the .NET Framework 3.5, still work and function properly for it? Shouldn't I uninstall these updates and install them through Windows update again since I disabled the .NET Framework before?

      My System SpecsSystem Spec

  2. #2


    Posts : 562
    W10 x64 pro and W8.1 x86


    That all sounds pretty normal to me. Once you have enabled a feature and installed any updates required by that feature then disabling that option at some future point will not uninstall those updates. There is no reason to because the .net framework is part of the OS, it wouldn't be logical to take the OS to an earlier state. Its all ready to go next time you enable it and in fact there could well be more updates needed by that time.

    So all normal.
      My System SpecsSystem Spec

  3. #3


    Posts : 191
    Windows 8.1 (Update 1) Pro 64 bit


    What I'm concerned about is that these security updates would not get applied to the reinstalled .NET Framework since it was removed before. They already existed presumably in a .NET Framework folder but without the program itself being in it.
      My System SpecsSystem Spec

  4. #4


    Posts : 562
    W10 x64 pro and W8.1 x86


    You've not reinstalled it though, just re-enabled. Yes You uninstalled the game and disabled .net. It will all still be there. Your new game needs it and .net is all ready and waiting just to be enabled again.
      My System SpecsSystem Spec

  5. #5


    Posts : 191
    Windows 8.1 (Update 1) Pro 64 bit


    Sorry for being a pain. I found out how to determine which updates are installed for different versions of .NET Framework by going into the registry to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Updates

    This is what I found:
    Click image for larger version

    It seems that Windows is saying that there are only updates installed or at least applied for Framework 4. So I'm guessing disabling and re-enabling Framework 3.5 doesn't let the already existing 3.5 updates apply to the re-enabled .NET Framework 3.5.
      My System SpecsSystem Spec

  6. #6


    Posts : 562
    W10 x64 pro and W8.1 x86


    If all you have done is enable/disable and then re-enable then I can't really see there being a problem with missing updates or updates that are needed but not being detected. I know you've found a registry key relating to updates but I would bet there is a lot more to it than that.

    I can see you are not convinced, and I've no answer or suggestion on how to prove or disprove your suspicions I'm afraid.

    Lets see what others think on the matter. I honestly don't think you have a problem though.
      My System SpecsSystem Spec

  7. #7


    Posts : 191
    Windows 8.1 (Update 1) Pro 64 bit


    I might be overthinking this. Could be wrong about my conclusion from the registry as well.

    As you said, does anyone else have an idea about this?
    Last edited by JohnnyGui; 07 Nov 2014 at 18:28.
      My System SpecsSystem Spec

  8. #8


    Posts : 191
    Windows 8.1 (Update 1) Pro 64 bit


    I just confirmed that I have version 3.5.30729.4926 of .NET Framework 3.5 currently installed by going to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 and looking at the Version number. Is this the latest version for Windows 8.1 Pro 64x users?

    Mooly (or any other users out there), could you verify this for me please?
      My System SpecsSystem Spec

  9. #9


    Posts : 562
    W10 x64 pro and W8.1 x86


    I haven't got that key I presume because nothing on this PC needs that .net version. That tends to reinforce the view that once you have enabled it and installed all the required files then its there for keeps. You can disable it, but the files remain in place.

    Click image for larger version
      My System SpecsSystem Spec

  10. #10


    Next update tuesday has security updates for .NET 3.5 and will be extensive.
      My System SpecsSystem Spec

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Question about .NET Framework updates
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