How To Activate the .NET Framework 3.5 on Windows 8 Without Internet Access - Premier Field Engineering - Site Home - TechNet Blogs

How To Activate the .NET Framework 3.5 on Windows 8 Without Internet Access - Premier Field Engineering - Site Home - TechNet Blogs

But what do you do if you have no Internet connection? The solution emerges with the Windows 8 ISO and DISM. Have a look below for a quick step-by-step guide on how to install and activate the .NET Framework 3.5 without Internet access:

1. Create a folder on your system drive called NET35 (example: C:\NET35)
2. Mount your Windows 8 ISO file or DVD
3. Copy the folder sources\sxs\ from the Windows 8 ISO into the newly created NET35 folder. I recommend using XCOPY for it, for example:
   xcopy G:\sources\sxs\*.* C:\NET35 /s[Ed: Note that this copies the contents of the SXS folder into C:\NET35, but not the folder itself]
4. Once you copy all the files, you can now utilize DISM to enable the .NET Framework 3.5 feature by entering the following command in an elevated command prompt (Start, Type "CMD", press Ctrl+Shift+Enter or right-click the Command Prompt item and choose Run as Administrator):
    DISM.exe /online /enable-feature /featurename:NetFX3 /All /Source:c:\net35 /LimitAccess[Ed: Note the above is one line but may wrap in this blog depending on formatting - if in doubt, it should be typed as in the screenshot below.]

If everything runs smoothly you should now have the .NET Framework 3.5 installed without the computer needing access to the Internet.

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