Microsoft has won a lawsuit that challenged the company against marketing some of its PCs as "Vista Capable". It was alleged that Microsoft was marketing the PCs which could run only on the basic version of Windows Vista. A deceptive promotion of its flagship software was alleged by the plaintiffs to pursue their cases individually.

A case had been filed Microsoft was sued in March, 2007 in U. S. District Court for the Western District of Washington alleging that the company was promoting its Windows Vista operating system software for use on computers that lacked the necessary technology to run it properly.

Customers who had bought a computer certified by Microsoft as "Windows Vista Capable" but not also as "Premium Ready" were certified as a class in February of last year. They had filed claims against the software giant including unjust enrichment.

After a favorable judgment, Microsoft spokesman David Bowermaster said in a statement that, "We're pleased that the court granted our motion to decertify the class, leaving only the claims of six individuals. We look forward to presenting our case to the jury, should the plaintiffs elect to pursue their individual claims."