If Rocket League does not start, you may need to update Microsoft .NET Framework. This software allows different programming languages to more easily communicate with your PC. Version 4.6.2 or newer is required to run Rocket League.
To download and install .NET Framework version 4.6.2:
- Visit the Microsoft .NET Framework 4.6.2 site:
https://dotnet.microsoft.com/download/dotnet-framework/net462 - Click the Download .NET Framework 4.6.2 Runtime button
(Do not click on the Developer Pack) - Run the downloaded program
- On Internet Explorer and Microsoft Edge, Click the Run button at the bottom of the page
- On Google Chrome, Click the up arrow next to the download at the bottom of the page then select Open
- Restart your computer when the update is finished
- Launch Rocket League