Use your computer keyboard as computer mouse

You can use your computer keyboard as your computer mouse in your windows 7 and further editions, for that you need a keyboard with numeric keypad.

Press Alt + left Shift + NumLock.

You'll see a dialog box. Now click on Yes.

Now you can use you computer keyboard numeric keypad as mouse. { Illustrated in below image }

You'll have more customising options on this. Which you can see if you click on Go to Ease of access . . . message which was displayed when you pressed  Alt + left Shift + NumLock.

To turn-off mouse keys, again press Alt + left Shift + NumLock.

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Yours,
** Bala....