Enable .NET 3.5 In Windows 10 With Powershell

Depending on how you installed Windows 10, in order to enable .NET 3.5 features you may need to use an alternative source location. (The ‘sources’ folder from a W10 ISO file)

Run Powershell as Admin
Run the following command (replacing the path with the path to your extracted or mounted ISO):

Enable-WindowsOptionalFeature -Path "D:\ISO\Windows\Desktop\Windows 10 Ent\SW_DVD5_WIN_ENT_10_64BIT_English_MLF_X20-26061\sources" -FeatureName NetFX3



I had an issue running this command today, and had to use dism instead to install the feature :

dism /online /enable-feature /featurename:NetFx3 /all /source:E:\sources\sxs



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