Windows 7 upgrade

As yet nobody has mentioned how much a Windows 7 upgrade from the Vista virus will cost.

This is a pure con on Microsoft’s part to charge for a product that is clearly not fit for purpose and then charge again for a correction to it. Windows 7 (top level version) should be a free upgrade to all those who have been conned into using Vista. Why isn’t the Government intervening to sort out this discussing business model of Microsoft?