How can I disable the touchpad for a DELL Inspiron 1525?

I searched everywhere on my laptop but I can't find anything that has something to do with the touchpad. It's a laptop DELL Inspiron 1525. I need to disable the touchpad because we do not use it and she continues to cause our typing go in all directions when our hands barely touch. Can someone help me please.
Thank you

Read these Forums of Dell solutions:

http://en.community.Dell.com/forums/t/19255094.aspx

http://en.community.Dell.com/forums/t/19224746.aspx

See you soon. Mick Murphy - Microsoft partner

Tags: Windows

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