Use .NET 9 or .NET 10 . These provide the best performance for new development. Download .NET Framework 4.8.1 Offline Installer

Below is a guide on how to handle your installation needs for the latest supported versions on Windows. Understanding the Versioning

Avoids installation interruptions caused by fluctuating network speeds.

Use .NET Framework 4.8.1 . It remains supported as a component of the Windows OS.