As you know, developing of computers technology is very fast. Tablets PC, PDAs, new smartphones are use touch screen. This technology is very useful and easy to use it’s, but operating systems of Microsoft haven’t any Windows, which work with touch screen technology. The engineering of Microsoft had solved this problem and name of its Windows 8 As we’ve known for some time, Microsoft had already begun work on Windows 8 before Windows 7 was completed. The reason being that different teams work on different aspects of the operating system, which is why Microsoft was able to do this. Microsoft previously shed some light on what we can see in Windows 8 through a job description. A roadmap timeline slide shown by Microsoft at the 2009 Professional Developers Conference shows that a product code-named Windows 8 is scheduled to be released sometime between 2011 (Beta) and 2012. Development and other aspects of Windows 8 have not been detailed in public, although job listings have mentioned improved functionality for file access in branch offices. A Microsoft KB article confirmed that Windows 8 is the next version of Windows. The article has now been changed to remove references to Windows 8. A leaked document from Microsoft indicates that Windows 8 might feature faster startup, an App Store, integrated web applications, improved digital media support (including AVC HD and 3D video), faster resumes from low-power states, and USB 3.0 and Bluetooth 3.0 support. Windows 8 is likely to include facial recognition (due to the increase of webcams that are integrated into computers and its latest add-on to its Xbox 360 console, Kinect). A Dutch representative posted on the company's blog that Microsoft is working on the next edition of Windows and that "it will take about two years before Windows 8 will be on the market". Steve Ballmer hinted at UK Tech Days that Windows 8 will feature major improvements for touch usage. On October 22, 2010, Steve Ballmer stated that "the next generation of Windows, would be the riskiest product Microsoft ever made" but he did not add any details on why Windows 8 will be the "riskiest product".