many worries for a new pc

It's strange for a new pc mouse sometimes hangs fortunately I can unlock as it is touch and it does not last very long but for a new pc it is not normal keyboard has a problem as it not written more letters have to correct all the time while pressing hard even he did not always want to write all the letters, very strange for a asus ..... sometimes that I have to restart train much while I have initiated anything and that no update! apart from that it is fast at other times the screen is very large, touch is nice. I have installed programs that do not come in all programs .... otherwise the keys are not very well placed compared to other laptops. it is thin and light. 3 USB ports are practical. the image is very good. it really worries keys that ruins everything. and also when it clicks when I do not want and suddenly it m 'also enlarged the screen only when it clicks etc ... The battery has a good battery life.