How to use keyboard as a mouse???

Thats very awkward moment when our mouse stop working,and you've to do an urgent work it would be very helpful to you Here's a very simple trick u can b used keyboard as a mouse.Just press

Alt+Left shift key+NumLock.
How to control your mouse.
Use the Numerical pad for controlling the mouse pointer.

• 4 is for left side
• 6 is for right side
• 5 is for click.
• + is for double click
• - is for right click.

NOw i will also tell you how to use the on-screen keyboard.
Go to start-> run and type osk now you can use it just by clicking on the keys displayed on the on-screen keyboard.