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Install this update to address a set of known issues with the Microsoft .NET Framework 3.5 Service Pack 1the Microsoft .NET Framework 3.0 Service Pack 2, and the Microsoft .NET Framework 2.0 Service Pack 2. After you install this update, you may have to restart your computer.

Download this update

The following files are available for download from Microsoft Update Catalog:

Download The Microsoft .NET Framework 3.5 Family Update

Note This update does not apply to the following Windows operating systems:

  • Windows 7

  • Versions of Windows later than Windows 7

  • Windows Server 2008 R2

  • Versions of Windows Server later than Windows Server 2008 R2

For these operating systems, we recommend you install the latest update from Windows Update.


Download the Microsoft .NET Framework 3.5 Service Pack 1

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