Hey, I got a Dell E6510 from my uncle as a gift. When I open it to use, the wifi doesnt work and so I put my wifi dongle in the usb slot and it works perfectly. Now I want a permanent solution instead of using the dongle all the time. When I go to device manager to [other devices] all of the devices have the warning type sign (yellow triangle). I tried to download the drivers from my working computer to that one, but a messages keeps coming up, device not installed properly. Please help. If further informormation is required for assistance, I will provide.