Windows 8 build 8331 (fbl loc)

Windows 8 build 8331 (fbl_loc) is a pre-Release Preview build of Windows 8. This build was leaked on 2014-12-08. It is a pseudo-localized build, which is used for testing the internationalization system. It also has a unique set of wallpapers. It is the last known build to use the rendition of the "betta" fish from the Consumer Preview, during the boot sequence. On 2018-10-18, this build leaked in German, Greek, Finnish, French and Italian.

Installation
Turn off all network adapters even if you set the BIOS date for the machine, otherwise, after the hardware setup, it will automatically adjust to the current time via online time syncing and thus activate the timebomb. This requirement is optional, but not doing this will result in the computer rebooting every two hours. Another way is install this build on the current date, it won't activate the timebomb.