I bought this keyboard "QWERTY" because I accidentally bought a laptop PC with a "QUERTZ. Perfect function and it is installed automatically without complicated system as is sometimes the case in wifi. 2 minutes. In addition, no need for manual, everything is registered permanently "below" the case. 1 ... 2 ... 3 ... 4 OK Press 3 seconds the mouse is prête.Appuyer 3 seconds and the keyboard is ready. And I'm on Windows 7.