So I seem to have messed up a wireless network card (Killer Wireless-N 1202) driver install pretty badly. I've tried drivers from Dell and from Killer Networking, however none seem to restore internet connectivity. I had a restore point from a week ago, but trying to restore to it gives me an error along the lines of "Something went wrong restoring the registry".

If you need any more information from me, let me know and I can provide (I'm new here :P)

Thanks in advance!