Windows 10: .net framework 3.5 couldn't have been installed Error code: 0x80071491 help I tried...

First I was trying to update the windows and then an error popped up saying not able to download the .net 3.5,4.8,4.8.1.So I tried manually installing them and while I was installing now this also popped up.

:)

 

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

 

Win10 Unable to install .NET Framework 3.5

Just switched to Win 10 from Win 8.1. A program is giving an error at startup (C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorlib.tlb could not be loaded)
so I tried to reinstall .NET Framework.

I've tried with all the possibilities I've found and even installing some components that indirectly install it but alway it ends with:

I've spent a lot of time searching possibilities, let's see if anyone has a clue or an undesired revert to Win8.1 is on the horizon...

UPDATE:
From the suggestion in a comment by @magicandre1981: Can't install .net 3.5 on Windows 10

Pointing to: Adding features (including .NET 3.5) to Windows 10

I executed:

And it worked! 100% completed without problems. Now almost all is fixed except when I try to open a Properties window on Visual Studio 2008 (the main user of the .NET 3 it says

Haven't dug deeper but I hope to fix this -hopefully- last one.

 

fix Error code 0x80070057, net framework v3.5

My new computer is Windows 11 home, v22H2, x64-based processor

Hi, I went to load NavDesk_v7_50_0112_SP.exe to my new computer and I was told I needed “Microsoft .Net Framework version 3.5”



When I tried to install it I was told that it couldn't be installed, "The parameter is incorrect" and “error code: 0x80070057”.

1. I tried returning to the very first System Restore point, but that did not work.
   
2. I have tried Windows Club FixWin11 -System fixes – Windows update error: 0x800070057
   

Steps 1 & 2 read “0” as shown.

With step 3. Rename "%SystemRoot%\SoftwareDistribution" to "SoftwareDistribution.bck"

I cannot find the location to rename.



Any help to fix the error code would be most appreciated.

* Moved from Community Center