How do I install .NET Framework 3.5 on Windows 7?

Question

I need to install version 3.5 of the .NET Framework in Windows 7, but when I try to install it, it shows the following error:

"Turn on/off .NET Framework" option in System Features

I tried doing this, but I don't understand what it means. Can anyone help me?

Answer 1

That message is trying to tell you that you need to install .NET 3.5 a different way under Windows 7. Because it's included as part of the operating system, you use the "Turn Windows features on or off" function to get to it, instead of installing a downloaded redistributable package.

1. Open the Start menu and click "Control Panel".
2. Under the "Programs" category, click the "Turn Windows features on or off" link text.

  

Answer 2

Here's a fully screen-grab based explanation on how to get .Net Framework 3.5 running inside of Windows 7.

Install .Net FrameWork 3.5 SP1 On Windows 7

I've found this, as I've got the same problem myself and needed 3.5 running on my PC too.

Hope this helps. :o)

Answer 3

Windows 7 comes with .NET 3.5 you just need to enable it in Windows Features.It gets installed,it selects automatically what else needs to be installed

Answer 4

Run the following command as an admin:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /ALL /NoRestart

That'll install .NET Framework 3.5 SP1, 3.0 SP1, & 2.0 SP1 ... same as enabling it through the GUI in Control Panel.