No WiFi on Windows 10

Hi, I just bought a computer from a guy off facebook and he put a fresh install of windows 10 pro on it and I can't get the WiFi to work. I've been trying to figure it out for two hours without any luck. I've updated the drivers, I tried doing the registry delete thing in case there was previously a VPN, I've tried updating the bios and going into it to make sure the network adapter was turned on. I can't find any other solutions on google and I'm starting to get really frustrated. If I can't figure this out soon I'm just installing Windows 7.