Use Keyboard As Mouse

When mouse isn’t working properly , this trick can be very helpful. To activate mouse keys all you do is press Alt+Left shift key + NumLock and click OK or press enter .

Use the Numerical pad for controlling the mouse pointer.
5 is for click.
+ is for double click
- for right click

On Screen Keyboard

On screen keyboard is one of the coolest windows features that displays a virtual keyboard on the computer screen that allows people with mobility impairments to type data by using a pointing device or joystick..

To use it go to start-> run and type osk

Transform your Windows XP in to Windows 7

If you are using Windows XP and want to experience Windows 7 without installing then here is Seven Remix XP transformation pack to transform Windows XP to Windows 7.With this simple app you can make your XP look like Windows 7 in just few clicks. It supports Windows XP, Windows 2003, Windows Media Center Edition and some other flavors of XP. Will work with only 32 bit edition of Windows.
Just download it and install .
Download Seven Remix XP and transform your windows xp .