Windows 7 build 7231

Windows 7 build 7231 is a build of Windows 7. This 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.