Net Framework 3.5 League Of Legends Jun 2026

The process may take a few minutes. You will see a progress bar. Wait until the operation completes successfully.

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

Right-click "Command Prompt" and select

The dependency of League of Legends on is a perfect example of live-service game debt. Riot Games built a world-class competitive experience on top of a client infrastructure that was engineered during the Bush administration.

The .NET Framework is an execution environment provided by Microsoft that allows software to run across different programming languages. Even if you have .NET 4.0 or higher, these newer versions are with 3.5. League of Legends requires the specific libraries found in version 3.5 to handle its patcher and certain in-game assets. How to Install or Enable .NET Framework 3.5 net framework 3.5 league of legends

If you get error 0x800F0906, your Windows Update is blocked (common on corporate PCs or "debloated" gaming rigs).

Sometimes, the Riot Client itself forgets that .NET 3.5 exists. The process may take a few minutes

The League client stays stuck on a grey screen or "Loading..." indefinitely without launching the lobby.

The error message typically reads: "This application requires .NET Framework 3.5" or "League of Legends requires .NET Framework 3.5 to run." Even if you have

Historically, the League Client was built using older architecture that requires . While Riot has updated the client over the years, certain legacy components and dependencies still call upon this specific version of the framework.