Windows 8.1 – Offline Installer for .NET Framework 3.5 Still Requires Internet Connection

.net-3.5windows 8.1

I am running the .NET 3.5 offline installer on windows 8.1 from Microsoft .NET Framework 3.5 Service pack 1 (Full Package) . Though, when I run this exe, it still prompts me to install from windows update. The same thing happens with the pre-service pack installer.

Even if I am connected to the internet, the download never completes and freezes on 'Downloading required files'

Does anyone have any insight to what could be wrong?

dotnetinstall

Edit: Daniel B brought to my attention that this package is not supported for windows 8.1. I will be taking the route of installing via the windows 8.1 ISO.

Supported Operating System

Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

A Microsoft MVP explains this process here: How to enable .NET Framework 3.5 on Windows 8 in Offline Mode

Best Answer

You need the Windows DVD or ISO. Then use:

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

Note that /Online means the working image of Windows, not an online install

A Microsoft MVP explains this process here: How to enable .NET Framework 3.5 on Windows 8 in Offline Mode

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