Move mouse cursor without touching mouse

Do u feel hard to handle your mouse? Or your mouse wheel is not rotating well?
You can move your mouse cursor with keyboard itself.
To activate this Press Alt + Shift + Numlock.
You will get a mouse keys dialog.
You can do the settings(Configure your mouse speed,etc) in this box and click Ok button.
Use number pad keys 1,2,3,4,5,6,7,8,9 to control the mouse cursor.
For example, pressing numberpad key 5 will do the left-click
Pressing the + key will do double click
Pressing insert key will hold the mouse cursor
Pressing delete key will release the mouse cursor
To deactivate moving mouse cursor using keyboard , just press numlock.

Uses of F4 key

Below are the uses of F4 key.
1) Pressing F4 key will move the keyboard cursor to the address bar(Both in windows explorer and Internet explorer) and also drop down the address combo box.
2) Pressing Alt + F4 will close the application. If no application is opened, the shutdown dialog box will be opened.
3) Pressing Ctrl + F4 will close only the currently opened document in the application. (For example, if you have opened two pdf document in the acrobat reader, only the currently viewing pdf document will be closed and not the acrobat reader application).