Windows XP has been around since 2001 when it was released as the successor to Windows 2000 and Windows Me. In popular terms, however, it is the successor to Windows 98, Microsoft’s previous widely-used operating system.
By 2006, it is estimated that 400 million copies of the operating system were in use worldwide. However, despite the release of Vista in 2006, Microsoft continued to sell the hugely popular XP to smaller equipment manufacturers until January 31st, 2009.
The reasons for this are simple - it is a stable, flexible, and functional operating system with a vast library of hardware device drivers. In addition, many people around the world like it so much they don't want to give it up easily.
Clearly, there is plenty of life in Windows XP – but where might you find an 8 year old operating system in a world of Windows 7?