Microsoft has been acquitted of misleading consumers over labelling the roll-out of its Windows Genuine Advantage anti-piracy software a 'critical security update'.
Complaints had been made about WGA, which collected information on people's PCs before communicating it back to Microsoft, and a case was brought over labelling the program as a 'security update' for users.
Microsoft labelled the class-action certification "demonstrably false", and that opinion has been backed up by the US Federal Court's Judge Jones.
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Microsoft have now been given the option of demanding compensation over the money it has spent in court defending itself – although it has not commented if it will pursue this option.
The company is hardly a stranger to the law courts; it was recently forced to withdraw part of the Microsoft Office suite from sale over a patent dispute, and has just launched a lawsuit on TiVo.