On 12 April 2011Microsoft released the first "IE10 Platform Preview", which runs only on Windows 7 and later. While the second platform preview was also available for Windows 7 and later, the next four platform previews ran only on Windows 8. The first preview release came four weeks after the final release of Internet Explorer 9. IE10 reached general availability on 4 September 2012 as a component of Windows Server 2012. A preview of IE10 for Windows 7 was made available for download in Nov 2012.