You do not need to download this file from third-party sites. It is located inside any Windows ISO or installation USB:
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Where to get the CAB legally and safely
Get-WindowsFeature -Name NetFx3
An example of such a link is from a 2015 Windows 10 build: http://download.windowsupdate.com/d/msdownload/update/software/updt/2015/11/microsoft-windows-netfx3-ondemand-package_421a25bf409692045d1cbfab0d99f8def8d95d3f.cab .
Disreputable websites package genuine-looking CAB files with spyware, trojans, or adware.
/enable-feature /featurename:NetFX3 : Specifies that you want to activate .NET Framework 3.5. microsoftwindowsnetfx3ondemandpackagecab download free link
it is strongly recommended to only obtain this file from official Microsoft sources
/online : Tells the tool to apply the feature to your currently running operating system.
Before hunting for a download link, try the built-in method. It downloads the necessary files directly from Windows Update. Press Win + R , type , and hit Enter. You do not need to download this file from third-party sites
If you have internet access and just need .NET 3.5, you can download the standard installers directly from the :
Let's break down what each part of this command does: