Offline Installer For Windows — .net Framework 4.9

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

Since there is no official 4.9 release, the official .NET Framework 4.8.1 download is the correct choice for users needing the latest "4.x" features.

Use .NET Framework 4.8.1 . It remains supported as a component of the Windows OS. .NET Framework 4.9 Offline Installer for Windows

Avoids installation interruptions caused by fluctuating network speeds.

Once downloaded, you can install it on multiple machines without an active connection. Once downloaded, you can install it on multiple

While many users search for a , it is important to clarify that .NET Framework 4.8.1 is currently the final major version of the .NET Framework family. Microsoft has transitioned its primary development efforts to the modern, cross-platform .NET (formerly .NET Core), with .NET 9 and .NET 10 being the most current versions as of early 2026.

Microsoft reached a "final" state for the legacy .NET Framework with version 4.8.1 to focus on the unified .NET platform. cross-platform .NET (formerly .NET Core)

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

Ideal for enterprise environments or air-gapped systems. Installation Requirements Download .NET Framework 4.8.1 - Microsoft .NET