Type 1-How to change system's language?

Applies to:

DL41B/DL81B/DL41A/DL81A/DL41D/DL81D/DH81S/DH81X/DH81NG/DM41D/DM41A/DM81A/DN41D/DN81D/DN41S/DN41NA/DM41H/DM81H/DM21O/DM31O/DE41N/DE81N/DN81NB/DM81Z/DM61W/DG81CP/DG81CQ/DH81NK/DG81CR/DH41NK/DM41G/DN41CJ/DN81BJ/DN61EC/DG81W/DG61X/DG41T/DT81DQ/DT41DC/DT61ER/DG41BE/DG81BE/NP41F/N43SU/N44SU/N48PZ/N481U/N441U/N44PBD/N461W/N48PAU

If you change the system's language into another one you don't know accidentally, you can change it back as the following steps. It doesn't matter you don't know its language because you can recognize it by what the icon looks like.

Please right-click the mouse, and then go to the Main Menu-->System-->General.

Pictures below are steps to change German into English.