Windows 10: Error 0x80073712 when trying to install .Net Framework 3.5 and 4.8 for Windows 10

Hello,


After repeated failure to install the "2020-02 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1903 for x64 KB4534132" via Windows Update error code: 0x80073712 I tried to solve the problem following the steps described here:

https://answers.microsoft.com/en-us/windows/forum/all/updates-failed-error-code-0x80073712/b3244642-bbbd-4bda-ab8d-ed369b8f6d96


Windows Update troubleshooter did not work; in fact, after a mandated Windows reboot, it took a full hour for Windows to restart and nothing changed.


I used System File Checker as described in the link above and here:

https://support.microsoft.com/en-us/help/4026529/windows-10-using-system-file-checker


The following message came up:





What should I do now?


Many thanks

:)

 

Cant to install Net Framework 3.5 on Windows 8

Hello all,

i have issues with Framework 3.5 installation on my Tablet with W8, i have tryied below instructions but framework is not downloading just now. i need your help. Thanks

[Fix] Can't Install Microsoft .NET Framework 3.5 in Windows 8 and Later - AskVG

[Fix] 0x800F0906 and 0x800F081F Error Messages While Installing .NET Framework 3.5 in Windows 8/8.1 - AskVG

How to Install Microsoft .NET Framework 3.5 Offline in Windows 8 and Later without Internet Connection? - AskVGDownload Microsoft .NET Framework 3.5 Offline Installer for Windows 8 and Windows 10 - AskVG

[Fix] Can't Install Microsoft .NET Framework 3.5 in Windows 8 and Later - AskVG

 

Unable to download any framework for .net - (error code 0x80070002)

OK, the Windows 10 Feature installation method should have been straightforward, but since that errored out as well, something else seems to be going on with your Windows, so wait for somebody with more experience to suggest a way out.

In the mean time, if you haven't already, you could give muchomurka's suggestion a go as well with the elevated prompt and an install media to see if it works. The following link shows the detailed steps involved.

Offline install of .NET Framework 3.5 in Windows 10 using DISM

 

Install .NET 3.5 Framework on Windows 10

Is it even possible, the help for this is of no use.

https://support.microsoft.com/en-gb...lation-error-0x800f0906-0x800f081f-0x800f0907

This is the bit thats applicable to me.

To fix the error codes for Windows 10, follow these steps:

1. Download the Windows Media Creation tool, and create an ISO image locally, or create an image for the version of Windows that you have installed.
   
2. Configure the Group Policy as in Method 2, but also follow these steps:
   1. Mount the ISO image that's created in step 1.
   2. Point the "Alternate source file path" to the ISO sources\sxs folder from the ISO.
   3. Run the gpupdate /force command.
   4. Add the .Net framework feature.

Method 2 isn't mentioned anywhere.

Further more if i download the framework installer and run the dotnetfx35setup.exe file i get a window that says it requires the framework its trying to install, so its a loop that requires the framework to install the framework.

Next issue is that if i try to turn it on from Programs and Features in the control panel it throws me back to the initial error of not being able to install it which takes me back to the link above and method for fixing it which doesn't include the information
for Method 2.

I'm starting to think MS are purposely making it uninstallable at this point.

Any help would be much apreciated.