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

NET 2.0 and 3.0) check box, select OK, and reboot your computer if prompted. The Turn Windows features on or off dialog box appears. Press the Windows key on your keyboard, type 'Windows Features', and press Enter. This option requires an Internet connection. NET Framework 3.5 through the Windows Control Panel. NET Framework version 3.5, but that version is not installed on your system. If you see this pop-up, you're trying to run an application that requires. NET Framework, and these apps target a specific version.

Many companies develop their apps to run using the.

NET Framework is created by Microsoft and provides an environment for running applications. You may see the following configuration dialog if you try to run an app that requires. NET Framework 3.5 SP1 Download page and is available for Windows versions prior to Windows 10. NET Framework 3.5 SP1 offline installer is available on the. You can also use these instructions for earlier Windows versions. NET Framework 3.5 to run an app on Windows 11, Windows 10, Windows 8.1, and Windows 8.

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