Windows – Unable to Install .Net Framework 3.5 SP1 on Windows 7 Ultimate

.net framework.net-3.5windows 7

Trying Windows 7, I am Unable to Install .Net Framework 3.5 SP1 on Windows 7 Ultimate..
First I downloaded the bootstrap version then the full version but nothing happens.
I run the install, the UAC prompts and then nothing happens.
No error message or anything.

Any idea or anyone with similar problem?

Best Answer

It's already there.