Microsoft Windows XP Home Edition with Service Pack 3 (SP3) includes a collection of software updates that improve on the Windows XP operating system since its general availability in October 2001.
Service Pack 3 brings users of Windows XP advanced security technologies and innovations that establish stronger security settings to help defend against viruses, hackers, and worms. This Service Pack also has tools that help users manage and control security settings even better.
This is probably the best operating system Microsoft has produced yet and the fact that there is still a strong demand for it is a testament to its quality.
Buy Microsoft's Windows XP Home SP3 from Ebuyer for only £66.30 including VAT and delivery, probably the cheapest quote in UK.