Thanks Vivian but nope. Didn;t work. Probably something in the Win. Registry etc.? Any ideas?

Thanks, however I had already done this to no avail. Neither manual or automatic installing the driver does not help. Meanwhile also tried deleting the registry key...

Model : Hardware Version : Not Clear Firmware Version : ISP : Hi, Installing the device SW for WiFi adaptor TL-WN822N fails. Keeps coming back with Windows 7 Error code 31, can't load driver. Can see...