Alienware 14 laptop no connection to internet

Running Windows 8

Was having problems connecting to our wifi so checked some forums and followed some info that the "killer" brand of driver was the problem, to remove it, and to download the "killer ethernet E2400" driver and the "killer wireless AC 1535" driver.  I found the 2400 ok, but didn't find the 1535 so picked a different 'wireless' driver.  I know I know!  I shouldn't have just picked another, but I am at my wits end with this no wifi thing.   So, my internet ran fine on the ethernet cable, but of course no wifi still.  So I got rid of them both, and now I have absolutely no access to the internet.  I am on my PC now looking for answers to this Alienware problem and how to find the right drivers.  And how do I get on the internet on the laptop now??? I've really messed things up I think?   I really don't want to have to take the laptop into a techie in town.  I know a bit about computers but this is really frazzling my brain.      Any help is appreciated.  Thanks!