DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
(Silent install with no reboot)
The .NET Framework 3.5 "Full" package includes version 3.0 and 2.0 dependencies. net framework 2.0 and 3.0 offline installer
You do not need to download anything from the internet for this to work; the files are stored locally on your hard drive. net framework 2.0 and 3.0 offline installer
Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' | Select Name net framework 2.0 and 3.0 offline installer