January 2009 Microsoft launched Windows 7 Beta version, the version authorized will expire August 1, beginning July 1 will be the version to restart a two-hour warning time; after the expiry of the version will remain once every two hours to restart and the desktop will become pure black. Users can change the desktop, but at intervals of 1 hour and then the desktop will change back to pure black.

April 30 this year, Microsoft introduced a version of Windows 7 RC. The version in the Beta version of Windows XP model of increased number of new features, such as. With the RC version of the launch, Beta version is also about to complete its mission. In addition, the official version of Microsoft Windows 7 in the United States is also about time the official October 22 release to the global mass market.

 

Beta version expires, the user can move to RC version, it is recommended the use of custom (new) install.