The desktop edition can be run in 64-bit mode by enabling Enhanced Protected Mode. On 64-bit computers, the Metro edition runs in 64-bit mode by default. On Windows 8, it is divided into two editions with different user interfaces: a Metro app that does not support plug-ins and a traditional desktop application that retains plug-in support. IE10 expands on Internet Explorer 9 functionality with regard to CSS3 support, hardware acceleration, and HTML5 support.
The first preview release came four weeks after the final release of Internet Explorer 9. While the second platform preview was also available for Windows 7 and later, subsequent platform previews run only on Windows 8. On 12 April 2011, Microsoft released the first 'IE10 Platform Preview', which runs only on Windows 7 and later. Internet Explorer 10 (IE10) is a version of the Internet Explorer web browser released by Microsoft in 2012, and is the default browser in Windows 8. Microsoft's improved version of their Internet Explorer browser
