How do I install the .NET Framework 3.5?

Question

How do I install the .NET Framework 3.5?

Gary Moore Jr 0

When attempting to turn on the Windows feature for .NET 3.5, I receive the error "The changes couldn't be completed. Please reboot your computer and try again. Error code: 0x800F0950.

The system is on 22H2 and has received the latest Windows update.

I have attempted to install .NET 3.5 from the website and run commands through PowerShell to enable the feature with no success. Any suggestions?

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Answer 1

Anonymous

Hi,@Gary Moore Jr. Welcome to Microsoft Q&A.

1.Make sure Windows Update service is running and check if there are any pending updates. If so, install them first and restart the computer.

How to run Windows Update service:

First open the run dialog box with Win+R, then enter services.msc and confirm.

Then find Windows Update in Services.

Double-click to modify the configuration, change the Service status to Start. Once the modification is complete, Apply and OK.

2.Use DISM command to enable .NET Framework 3.5. Open Command Prompt (Run as Administrator) and enter the following command:


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

More detailed documentation:

https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/deploy-net-framework-35-by-using-deployment-image-servicing-and-management--dism?view=windows-11#for-an-online-reference-image-that-can-access-windows-update

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Anonymous

2024-11-01T08:11:12.4033333+00:00

Hi,@Gary Moore Jr.

Are there any more updates to this question? Is my answer helpful to you? If the above reply could solve your problem, you could accept it as the answer. This will help more community members who have similar problems.
Gary Moore Jr 0 Reputation points

2024-11-04T16:18:20.73+00:00

Thank you for your response and sharing the steps above. It did not work for me. When attempting the steps, I received the Error code: 0x800F0950
Anonymous

2024-11-05T02:06:42.5366667+00:00
Hi,@Gary Moore Jr.

Have you tried the offline installation mentioned in the official documentation?

1.Download offline installation package: Download Microsoft .NET Framework 3.5 Service pack 1 (Full Package) from Official Microsoft Download Center

2.Save the file to d:\sources\sxs.

3.Run the following command as an administrator:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs

4.Restart your computer.
Gary Moore Jr 0 Reputation points

2024-11-06T12:38:08.4466667+00:00

I attempted the offline installation mention in the official documentation with no success.

Is there another place where I can obtain the cab files?
Anonymous

2024-11-07T03:32:48.64+00:00

Hi,@Gary Moore Jr. Download the disk image (.ISO file) for the corresponding operating system. Related links.

Open the .ISO file, and there is a .cad file in sources\sxs.

Note: The .cad file needs to use the corresponding version. The link I gave is for Windows 11 24H2. You need to update the operating system or find the disk image (.ISO) of Windows 11 22H2.

Related Documents:.NET Framework 3.5 installation error: 0x800F0950 help - Microsoft Community

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How do I install the .NET Framework 3.5?

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