FramerWork 3.5

I have Windows 7 and everytime i try to instal it (So i can run VB programs)
I get a error. It says i need to turn off Windows Features in the control panel. Can anyone help me?

In the control panel of windows 7 , there is a "Windows Feature" control, run it there will be some ticks (check boxes)

Check the box next to Microsoft .NET Framework 3.0 or whichever is there.