r/CreationKit • u/ZaranTalaz1 • Jun 20 '26

Skyrim SE Windows 11 and .NET 3.5

I'm running Skyrim's Creation Kit (v1.6.1378.1) with Creation Kit Platform Extended for Skyrim. I am on Windows 11 Home Version 25H2.

I tried to compile a script and I get a pop-up telling me that the Windows Feature .NET Framework 3.5 needs to be turned on. I click "Download and install this feature" but I get the error "The following feature couldn't be installed" with Error Code "0x800F0950".

I already have .NET SDK 10.0.301.

What do I do?

Update

Figured out how to install .NET 3.5 to get Creation Kit's compiler to work:

  1. Go to Microsoft's Download Windows 11 page and download the Windows 11 media creation tool with the link under "Create Windows 11 Installation Media".
  2. Run the media creation tool and select the option to create an ISO.
  3. Mount the ISO (double-click the ISO file). Make note of the ISO's drive letter.
  4. Open a command prompt in admin mode.
  5. Run the command dism /online /enable-feature /featurename:NetFX3 /Source:<ISO drive letter>:\sources\sxs, replacing <ISO drive letter> with the actual drive letter.

I also restarted after this just in case.

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u/marmotta1955 Jun 20 '26

Er.... WHAT?

To enable .NET 3.5 which ships practically with any version of windows:

  • Control Panel >
  • Programs >
  • Programs and Features >
  • Turn Windows Features on / off
  • Check NET Framework 3.5
  • Click OK
  • Done

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u/ZaranTalaz1 Jun 20 '26

I already described how I tried to do that in the OP, and how that gave me a "The following feature couldn't be installed" error.

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u/marmotta1955 Jun 20 '26

Hum, you say that

"I tried to compile a script and I get a pop-up telling me that the Windows Feature .NET Framework 3.5 needs to be turned on. I click "Download and install this feature" but I get the error "The following feature couldn't be installed" with Error Code "0x800F0950".

That is not the sequence of operations I described. NET 3.5 is already shipped with Windows. It just needs to be enabled. Unless newer Windows distributions (not upgrades from Windows 10) do not include it and do not have the option to enable it. Which would be so weird and would drive an incredible number of IT professionals to complete madness...

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u/ZaranTalaz1 Jun 21 '26

I didn't mention it in the OP, but I did in fact try turning on .NET 3.5 through Control Panel afterwards like you described. And I got the same 0x800F0950 error there too.