
Windows OS has an Inbuilt option Called MouseKeys, Not known by many people which  when  turn on enables users to move the mouse pointer using the numeric keypad on your keyboard instead of using a mouse.
To turn on Mouse Keys       Â
To move the mouse pointer
- Up                    -Press  8
- Down                  -Press  2
- Right                  -Press  6
- Left                   -Press  4
- Up and to the left         -Press  7
- Down and to the left      -Press  1
- Up and to the right        -Press  9
- Down and to the right     -Press  3
Select a mouse button
- To Select the left mouse button        -Press The forward slash (/)
- To Select both buttons               -Press The asterisk (*)
- To Select the right mouse button       -Press The minus sign (-)
Click items using Mouse Keys

- Click an item-With the left button selected as your active button, point to the item, and then press 5.
- Right-click an item- With the right button selected as your active button, point to the item, and then press 5.
- Double-click an item- With the left button selected as your active button, point to the item, press the plus sign (+)
Drag items using Mouse Keys
- Drag an item  –   Point to the item, and then press zero (0)
- Drop the item  –  Point to the location where you want to move the item, and then press the decimal point (.)
                                                         Source:www.microsoft.com