MW3 Mouse problem!!

hey guys, this is my problem, and as you can see , its very annoying. PLEASE HELP ME!
watch from 3:00

In win 7 there is a function that moves the mouse for you to make it easier to use a mouse pad. you need to disable it. I am sorry, but I have no idea what this function is called, but I saw a link on the steam forum some days ago where it was posted.

thanks, but i really looked in google for hours but no luck! there were some solutions but , not efficient. so icame here cause there are pros who can help me!