pointer not working

[ALPHONC NYAKUNDI]

i have hp windows 2010 lap top, recently i was typing only to see a yellow light on the touch pad and immediately the pointer stopped moving. for now unless i use an external mouse i cannot use it please help me solve the problem. my address is alphoncenyakundi@gmail.com

 

[Barhumbug]

Check the manual and see what the yellow light indicates.
What is the actual model number of the laptop, web searches bring up loads of possibilities.