Net Framework 3.5 (2.0 and 3.0 included) - installation cannot be completed

Good evening,

I am desperately trying to install version 3.5 of the .NET Framework (including 2.0 and 3.0).

I have followed many tutorials online, but each time the installation or download gets stuck. I want to clarify that I am the administrator of the computer (and run the .exe as an administrator (right-click...), and that the Windows Update service is running.

When I go to "Turn Windows features on or off", I check ".NET Framework 3.5 ...", it starts and tells me that I need to download files via Windows Update, which I do. However, once the download starts, it gets stuck and doesn't progress, even after waiting for hours.



I also tried downloading the full version from the Microsoft website, and the same thing happens except that it searches online without finding anything and gets stuck for hours as well...

Additionally, I tried using the DISM command line with the command

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All



And then nothing happened...

Then..., I looked at other proposed solutions. Notably the one using the command line

DISM /Image:C:\test\offline /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs

From what I understand, the .NET Framework installation file is in the sources\sxs folder. I don't understand why we separate the image from the source since the source folder is also present in the image...

Anyway, I tried creating an image of my Windows 10 disk in .iso format that I placed in a folder called "w10" on one of my drives that I use to store data.

I isolated the source folder containing the .NET Framework cab file on the same drive but in a directory called "sources\sxs" and ran the following command while ensuring that I respected the paths and drive letters on my computer:

DISM /Image:D:\w10 /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs

Here’s what it displays:



I don’t understand where the error is and I am starting to feel overwhelmed after spending the entire day on this...

I need this version of the .NET Framework to get my 3D software to work.

If you have any clues...

Thank you in advance.