Install DotNet 3.5 on Windows 10, Windows Server 2012 and 2016

If you use the GUI to add Dot Net 3.5  feature, you may encounter some error.

If your computer is without Internet, with the original disk, you can install by below command:

DISM /Online /Enable-Feature /LimitAccess /FeatureName:NetFx3 /All /Source:D:\sources\sxs

(Where D: is your DVD. You can also copy the content of WinSXS folder to anywhere and revise the command accordingly. )