Windows 10: Can't install .network framework 3.5 on Windows 11 Error Code 0x80071AB1

I just got this new PC it currently has .net framework 4.8 installed and turned on but to run a specific program I need 3.5 and nothing I try seems to be working I tried to check the box in windows features and receive the error code 0x80071AB1 and can't find anything online on how to fix this

:)

 

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.

.NET Framework 3.5 installation errors - Windows Client | Microsoft Docs

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.

 

Unable to install .Net Framework 3.5 with error: "the feature couldn't be installed and gives me an Error code: 0x8E5E03FA" on Windows 10

Hi Julien,

Thank you for posting in Microsoft Community and being a part of Windows 10.

I understand the inconvenience you are facing in installing the .Net Framework to play the game. We will help you with this issue.

Do let us know the troubleshooting steps you have tried to resolve the issue?

Try the below troubleshooting steps if not yet tried and check if it helps.

Step 1: I would suggest you to run .Net framework cleanup tool
and check.

Refer this link:

http://blogs.msdn.com/cfs-file.ashx...-90-44-93/dotnetfx_5F00_cleanup_5F00_tool.zip

(Also holds good for Windows 10)

Step 2: Start the optional feature .Net framework.

• Press Windows key + R
• Type: optionalfeatures.exe
• Hit Enter
• Check of .NET Framework 3.5
• Click OK

Step 3: I suggest you to run the Windows Update troubleshooter and check.

Resolves problems that prevents you from updating windows.

Steps:

• Press Windows + X, click on Control Panel, select
  Category and then select Large or Small icons.
• Click on Troubleshooting and click on
  View all in the left pane.
• Select Windows Update to run the Windows Update Troubleshooter
  and follow the on-screen instructions.

Now try to turn on the .Net framework and check if the issue persists.

Reference: Microsoft .NET Framework 3.5 on Windows 10 failed to install
- Error 0x8E5E03FA

Hope it helps. Get back to us for further assistance on this issue. We will be happy to help you.