Download .NET Framework 4.5

The .NET Framework 4.5 is now available for download. The .NET Framework 4.5 is a highly compatible, in-place update to the .NET Framework 4. By using the .NET Framework 4.5 together with the C#, Visual Basic, or F# programming language, you can write Windows apps. The .NET Framework 4.5 includes significant language and framework enhancements for C#, Visual Basic, and F# (so that you can more easily write asynchronous code), the blending of control flow in synchronous code, a responsive UI, and web app scalability.

The .NET Framework 4.5 adds substantial improvements to other functional areas such as ASP.NET, Managed Extensibility Framework, Windows Communication Foundation, Windows Workflow Foundation, and Windows Identity Foundation. The .NET Framework 4.5 delivers better performance, reliability, and security.

For more information about these and other features of the .NET Framework 4.5, see the .NET Framework Developer Center website.

Download .NET Framework 4.5
Download .NET Framework 4.5 | Download .NET Framework 4.5 Web installer (dotNetFx45_Full_setup.exe - 980 KB)

Note: Windows 8 and Windows Server 2012 include the .NET Framework 4.5. Therefore, you don't have to install this software on those operating systems.

System requirements
Supported operating systems:
  • Windows Vista SP2 (x86 and x64)
  • Windows 7 SP1 (x86 and x64)
  • Windows 8 (x86 and x64)
  • Windows Server 2008 R2 SP1 (x64)
  • Windows Server 2008 SP2 (x86 and x64)
  • Windows Server 2012 (x64)

Hardware Requirements:
  • 1 GHz or faster processor
  • 512 MB of RAM
  • 850 MB of available hard disk space (x86)
  • 2 GB hard drive (x64)

Reference:
.NET Framework

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