How to install .NET Framework 3.5 on Windows Server 2012, 2012 R2 and Windows 10

When you try to install .NET Framework 3.5 from ServerManager, you could run into this problem, that the following message will be displayed, when you install the feature:

“Do you want to specify an alternate source path? One or more installation selections are missing source files…”

For a quick fix, mount the Server DVD installation media, either by ISO or physical media, and type the following in a command prompt:
dism /online /enable-feature /featurename:NetFX3 /all /Source:d:\sources\sxs /LimitAccess
In the above example D: is the DVD-DRIVE, change it to match your setup.

After a short time, you should see this:


And you are good to go 🙂

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