In its first few days of sales, Windows 7 has obliterated the number managed by the previous version of the OS, Vista.
Admittedly it’s only sales in the US, but in the first few days of being made available to the public Windows 7 has sold 234 per cent more copies than Vista managed in the similar period.
Link http://www.techradar.com/news/computing/pc/windows-7-234-better-than-vista-at-launch-647548
