Internet not working on g560e

Hi, so i have an old Lenovo G560e laptop(p6100 4gb ddr3) and whenever i try installing windows 8.1, i try to install internet drivers(WLAN), but the internet doesnt work. Its strange because on the other windows os’s internet worked perfectly. is there any suggestions that i can use to get drivers working? I always have the drivers on flash from official site, so they should work…