Windows 7 build 7100

Windows 7 build 7100 (with a build tag of 6.1.7100.0.winmain_win7rc.090421-1700) is the official Release Candidate build of Windows 7. It was officially released to MSDN and TechNet subscribers on 2009-04-30 and to the general public on 2009-05-05. There are almost no noticeable differences between it and the RTM version of the operating system, except for the betta fish wallpaper.