The fourth generation of the .NET Framework platform

.NET Framework (4)

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Download .NET Framework 4.5

.NET Framework 4.5

  -  48.02 MB  -  Freeware
  • Latest Version

    .NET Framework 4.8.1

  • Operating System

    Windows Vista / Windows 7

  • User Rating

    Click to vote
  • Author / Product

    Microsoft Corporation / External Link

  • Old Versions

  • Filename

    dotnetfx45_full_x86_x64.exe

  • MD5 Checksum

    a5e81d1b3905ada0a6e35fd6c6a2e1f4

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system. Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of .NET Framework 4.5.


For those interested in downloading the most recent release of .NET Framework (4) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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  • .NET Framework 4.5 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

- A highly compatible, in-place update to the .NET Framework 4. 
- By using together with the C#, Visual Basic, or F# programming language, you can write Windows apps. 
- 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 . 
- Adds substantial improvements to other functional areas such as ASP.NET, Managed Extensibility Framework, Windows Communication Foundation, Windows Workflow Foundation, and Windows Identity Foundation. 
- Delivers better performance, reliability, and security.

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