visual studio 2017 stuck building ue4

I’m using Windows 8.1

I go to Control Panel and Add/Remove Programs, and find Visual Studio Community 2017 in the list (see screenshot). I right-click it and have Uninstall or Change as options. I click Change, and it launchers Visual Studio Installer.

Once in Visual Studio Installer I click Individual Components tab, and locate the .NET Framework ones. As you can see in the other screenshot, it is not present.