How can I disable the touchpad on my laptop

Hi
I have an ASUS laptop model: N43S
I used fn-f9 keys to disable my touchpad, and after I pressed these two keys, a picture of a locked touchpad appeared on the screen but the touchpad was still working.
So I went to control panel -->device manager-->mice and other pointing devices-->driver but the “disable” button was disable too.

I should disable my touchpad because I have to type my thesis and the touchpad is a big problem for me. Please help me in this case.

Hello rsaboor and welcome to Seven Forums.

This article explains the most common ways to disable a touchpad. Make sure you have another pointing device available (like an external keyboard) before disabling the touchpad.

How to Disable Your Laptop Touchpad | PCWorld

Go to the Asus downloads page at http://www.service.asus.com/#!downloads/c1wax and download the manual for your laptop. You will find instructions under the heading:
Chapter 4: Automatic Touchpad Disabling.

I have copied the instructions for the N43SN Windows 7 64-bit laptop, on page 55 of the manual.
It may work the same on your model…
1) Select option in Windows Control Panel > Hardware and Sound > Mouse.
2) Click the ELAN tab.
3) Click Disable when USB mouse is plugged in.
4) Click OK to finish the configuration.

marsmimar said:

Hello rsaboor and welcome to Seven Forums.

This article explains the most common ways to disable a touchpad. Make sure you have another pointing device available (like an external keyboard) before disabling the touchpad.

How to Disable Your Laptop Touchpad | PCWorld

Hello marsmimar and thanks for the help. I read the article but none of the ways was useful. (I tried all the ways explained in this article and the lonely way that I didn't used was installing the touchfreeze). I decreased the sensitivity of the touchpad but after that, the sensitivity wasn't decreased yet. I think there is no permission for touchpad controlling.

thank you all,
I will try the other ways which BlackBart2012 and richnrockville suggested and will tell you the results.