I have an application that needs .net 3.5. On new (non upgraded) machines I cant install .net 3.5. I go into control panel and add add it under 'turn windows features on or off' but I receive an error 0x800F081F.
Make sure you have internet access and no firewall blocking downloads. Windows 10 uses "features in demand" to pull down features from windows update when you turn them on.
What if I dont have a Win 10 DVD?
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