Use Keyboard as Mouse

if your mouse is not working and want to use your keyboard as mouse,you can use your keyboard as mouse by this method.

Windows XP Users:-

1. Go to Control Panel.
2.  click on Switch to Classic View.
3.  Click on Accessibility Options.
4.  Click on the Mouse Tab.
5. Select Use MouseKeys.
6. Click on OK.
7. Then activate NumberLock (by pressing the NumLk key).
8. You should hear a beep sound.
9. Now you can control the mouse pointer using the arrow keys on the numeric keypad.

Windows 8, Windows 7 and Vista Users:

You can alternately press the Alt+Shift+Num Lock combination to instantly activate the mouse keys.

For laptops, this will only work if your laptop keyboard has a numeric keypad or alternative keys with which you can use with the Number Lock Key or the Function key.

number 6 key of the numeric keypad moves the mouse pointer left, number 4 key moves the mouse pointer right, number 2 key moves it down, number 8 key moves the mouse pointer up, number 5 and + key serve as right click while the number 0 key works as left click.