Allllllrighty

I have a dell xps630i and I haven’t had any trouble out of it at all. Until I installed a RangePlus Wireless PCI Adapter.

I’ve had several years of experience with computer repair and upgrading and I’m 100% positive my putting it in didn’t break anything…

Now my operating system wont load. When I go to boot it , it tells me "Windows failed to start, a new software or hardware change could be the problem". When I run a diagnostic test on it , it gives me error number 0F00:021B saying something about a flaw in media or error in recorded data.

My computer has been acting a little funny about a day or two before this actually came up.

What should I do?