Windows 10 continues to update the Microsoft .NET Framework, but if you are running apps that were developed for Windows XP, 7, or Vista, you might need the older Microsoft .NET Framework 3.5. Here's how to install 3.5 quickly and easily offline using your Windows DVD or ISO.

If you're online and don't mind waiting for the download, see How to Install .NET Framework 3.5 on Windows 10, Windows 8.1, and Windows 8.



You'll need your Windows 10 DVD or ISO. or download and extract the latest Windows 10 ISO to its own folders using the Windows 10 Media Creation Tool.

Take note of what drive your DVD is in or where you extracted the ISO. For simplicity, we put our ISO in a C:\Win10 folder to make things easier.

Open a Command Prompt or PowerShell as admin and type in:

Dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess

Replace the D with the drive containing the ISO. If you extracted the ISO to a folder using our example above, then replace the D:\ with C:\Win10

You will see Enabling features and a progress bar. When complete you should see The operation completed successfully.

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If you'd prefer to make it even easier, there's a batch file available that you can extract, right-click run as admin and it will find your ISO and install.Net 3.5



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How to Install .NET Framework 3.5 on Windows 10, Windows 8.1, and Windows 8

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