Install the .Internet Framework three.v on Windows xi, Windows 10, Windows 8.one, and Windows viii

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You may need the .NET Framework 3.5 to run an app on Windows xi, Windows 10, Windows 8.i, and Windows 8. You tin can too use these instructions for earlier Windows versions.

Download the offline installer

The .NET Framework 3.5 SP1 offline installer is bachelor on the .Cyberspace Framework 3.5 SP1 Download page and is available for Windows versions prior to Windows ten.

Install the .NET Framework iii.5 on Need

You may encounter the following configuration dialog if y'all try to run an app that requires the .NET Framework 3.5. Choose Install this feature to enable the .NET Framework 3.5. This selection requires an Cyberspace connection.

Screenshot of the .NET Framework installation dialog.

Why am I getting this pop-upward?

The .Net Framework is created past Microsoft and provides an environs for running applications. There are different versions available. Many companies develop their apps to run using the .NET Framework, and these apps target a specific version. If you see this pop-up, yous're trying to run an application that requires the .NET Framework version iii.v, but that version is not installed on your system.

Enable the .Internet Framework 3.v in Command Console

You can enable the .NET Framework iii.five through the Windows Control Console. This option requires an Internet connection.

  1. Press the Windows fundamental Screenshot of the Windows key logo. on your keyboard, type "Windows Features", and press Enter. The Plow Windows features on or off dialog box appears.

  2. Select the .Internet Framework three.5 (includes .NET ii.0 and 3.0) check box, select OK, and reboot your computer if prompted.

    Screenshot showing installation of .NET with the control panel.

    You don't demand to select the child items for Windows Communication Foundation (WCF) HTTP Activation and Windows Advice Foundation (WCF) Not-HTTP Activation unless you lot're a developer or server ambassador who requires this functionality.

Troubleshoot the installation of the .Cyberspace Framework 3.5

During installation, you may run into mistake 0x800f0906, 0x800f0907, 0x800f081f, or 0x800F0922, in which instance refer to .NET Framework 3.v installation error: 0x800f0906, 0x800f0907, or 0x800f081f to see how to resolve these problems.

If you nonetheless tin can't resolve your installation issue or you don't have an Internet connection, you can attempt installing information technology using your Windows installation media. For more information, see Deploy .Net Framework iii.5 by using Deployment Image Servicing and Management (DISM). If you're using Windows 7, Windows eight.1, the latest release Windows 10, or Windows 11, but you don't take the installation media, create an upwardly-to-appointment installation media here: Create installation media for Windows. Additional information almost Windows 11 and Windows 10 Features on Demand: Features on Demand.

Warning

If you're non relying on Windows Update every bit the source for installing the .Net Framework 3.v, you must ensure to strictly use sources from the same respective Windows operating system version. Using sources from a different Windows operating organization version will either install a mismatched version of .NET Framework 3.five or cause the installation to fail, leaving the system in an unsupported and unserviceable state.