How to restore wintouch tablet using button?

Morning for all, i have a wintouch k72 whitch is blocked by the pattern is forgotten. Now, i try reset it but, i don't know to do. please help me to resolve my problem. thanking you in anticipation 

Wintouch Q74 hard reset, press and ...  

This tablet uses Power + Volume down combination ... enter recovery mode. Press these buttons and wait until the Android ... OK button. Select Wipe Data/Factory Reset and let the tablet reset ...