Windows XP, one of the most used Operating Systems in the world just turned 10 years old. So far over 450 millions copies of Windows XP have been sold across the globe in hundreds of countries. Windows XP was too good as it even resisted the adoption of Windows Vista when it was launched in 2006. Whatever the history may be, the world has changed since its launch. So its time for you to upgrade to Windows 7 if you have any Windows XP machine to have better computing experience.