How to completely remove ads and pre installed and auto installed app on lenovo a850?

This bullshit damn app and ads really pissed me off! Its a chinese goddamn apps, games and ads! That appear and installed by itself. Does anybody know how to remove this ******* malware or whatever virus system without rooting the phone.

Download a norton security trial

When you buy chinese thats what you get. I would never trust a chinese company, the chinese hack and steal from the US and the last thing I would do is use their products.