How to install .net framework on win1125H2

Connie Beach 0 Reputation points
2026-10-13T22:02:51.5233333+00:00

I have an application that needs .net framework 4.6.2, however my win11 25H2 will not let me install it. How do I resolve this?

Developer technologies | .NET | .NET Runtime
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  1. AI answer

    2026-10-13T22:03:04.89+00:00

    Windows 11 25H2 already includes .NET Framework 4.8 or 4.8.1, and .NET Framework 4.x versions are in-place updates. Only one 4.x version can exist on the machine, so .NET Framework 4.6.2 cannot be installed side-by-side or downgraded onto Windows 11 25H2.

    To resolve this:

    1. Use the app with the built-in .NET Framework 4.8/4.8.1 if the app supports it.
    2. If the app installer explicitly blocks because it checks for 4.6.2, update the app or installer to support later .NET Framework 4.x versions.
    3. If the app is being developed in Visual Studio and needs to target 4.6.2, install the .NET Framework 4.6.2 Developer Pack or Targeting Pack. That enables targeting 4.6.2 for development, but it does not install the 4.6.2 runtime over the OS-provided 4.8/4.8.1.
    4. If the app requires .NET Framework 3.5 or older components, install .NET Framework 3.5 separately. It can be installed alongside .NET Framework 4.x.

    Key point: on Windows 11 25H2, the fix is not to force-install 4.6.2 runtime. The fix is to run against the included 4.8/4.8.1 runtime, or update the application/installer logic.

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