My lan driver and device manager are both blank. I add my wireless wifi adapter it's not working but when I plug internet cable my internet is working .i want to use wifi adapter how to solve this problem?
Laptop or PC ? if its a PC is it an external or a builtin WiFi adapter ? can you show me a SS of Device manager ? fresh windows install ? "by that i mean was it working before and suddenly it stopped or you reinstalled windows and the problem showed up". too much possibilities but work with me to eliminate them one by one .
sorry Im really clueless about what your issue is all about. these are clearly not screenshots from your PC, do you mean that you dont see the connection icon in the taskbar ?
correct me if im wrong :
1- you installed windows 7
2- you bought wifi adapter and it was working fine but recently it stopped working
3- if you plug the adapter the internet will disconnect even if the ethernet cable is plugged in
4- if you remove the adapter the internet will work fine