You can control your mouse pointer with your numeric keys. This steps becomes very usefull when suddenly your mouse dosnt’ works properly or you dont’ have mouse. your keyboard performs all the functions of your normal mouse. follow the steps to activate your keyboard mouse.

1. Click on Start and navigate Control panel.
2. In control panel click on Ease of Access
   

   Ease of Access

3. Click on Change how your Mouse works
   

   Change How your Mouse works

4. Turn on Mouse keys (Click on checkbox)
   

   Turn on Mouse keys

5. Click on Apply and Save it.

Another way to activate Mouse keys press Alt+Shift+NumLock keys at once and you will get a small Mouse Keys dialog box. Click on Yes

Functions

At any instance of time you can quickly enable or disable Mouse keys by pressing NumLock button. Move your cursor into different directions using 1,2,3,4,6,7,8 and 9 keys. Key 5 will work as your left mouse click. To double click any object use + Sign key.