Windows 8 build 8331 (fbl loc)

Windows 8 build 8331 (with a build tag of 8331.fbl_loc.120425-2034) is a pre-Release Preview build of Windows 8. It was leaked in 2014-12. It is a pseudo-localized build, which is used for testing the internationalization system. It also has a unique set of wallpapers. 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.