Windows 7 build 7231

Windows 7 build 7231 is a build of Windows 7. This build was leaked on the 12th of June 2009. is the last build to contain the betta fish wallpaper, before it was replaced by the default wallpaper used in the final version of Windows 7 in the next build. However, the betta fish wallpaper returned in Windows 8 build 7700.

Bugs and quirks

 * Running Disk Cleanup with administrator privilege causes the application to crash.