Adobe Illustrator draws multiple shapes while drawing single shape


I'm trying to draw single shape using shape drawing tool in Illustrator but, when I hold click and slide my mouse, it draws multiple shapes. How can I resolve this issue ?here is the screenshot of the issue.

11/8/2015 12:04:00 PM

Well, This usually happens when using the Tilde (~) key.

enter image description here

It's a "Continuous Duplicates Based on Mouse Movement" function and combined with Alt/Option, Shift/Command and spacebar you can create new and complex effects.

Are you sure your Tilde key is not pressed or locked somehow? Also, try drawing a circle while holding the Tilde key pressed...

I'm asking cause I don't know of a setting in Illustrator that will do this automatically...

enter image description here

PS: Here's an article where you can read about it.

11/8/2015 6:14:00 PM