.Net Framework Causing Non-Genuine

I just re-installed vista, and every time i install .net framework 3 it starts giving me this error message:


and it fails the genuine test (it passed before the framework was installed). if i uninstall it, it passes again. i need this framework for fallout 3 though, so i need it installed.

once i have it installed i can't even access the control panel. it won't let me at all.

I notice that your screen shot had the text, "Use the link below to find out how to fix your system."

What happened when you tried the link?
.

it went to the genuine test, which i failed.

There's a Microsoft article on a similar subject:

Error message when you use Windows Vista: "An unauthorized change was made to your license"
.