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  • Microsoft .NET Framework 3.5 Service pack 1 (Full Package)

    If your download does not start after 30 seconds, Click here

        1. Important: Make sure you have the latest service pack and critical updates for the version of Windows on the computer. To look for recent updates, visit Windows Update.


        2. Click the Download button on this page to start the download


        3. To save the download to your computer for installation at a later time, click Save.


        4. To cancel the installation, click Cancel.

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        Bootstrapper
        To download the bootstrapper, rather than the full package, click on the link below:
        .NET Framework 3.5 Service Pack 1 (Bootstrapper)

        IMPORTANT: After installing the .NET Framework 3.5 SP1 update you should immediately install the update KB959209 to address a set of known application compatibility issues.

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