Microsoft has stepped up its fight against software piracy by requiring users to verify their copies of the Windows operating system.
Anyone downloading updates for Windows XP will be required to check that their operating system is genuine.
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Customers who discover that their copy of Windows is pirated have two options.
They can get a free version of Windows if they fill out a counterfeit report identifying the source of the software, providing proof of purchase and returning the counterfeit CD.
If they are unable to provide all the information, filling out a report will entitle them to receive a copy of Windows XP Home Edition for the reduced price of £56 or Windows XP Professional Edition for £86 -
BBC