Windows and Frameworks

Windows 10 and DotNet 3.5 Run in an elevated console:

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

F: - installation media drive

Windows Server 2012 R2 and DotNet 3.5 (2.0) PowerShell as Administrator

Install-WindowsFeature Net-Framework-Core -source e:\sources\sxs\

E: - Windows Server Install DVD