Windows 10 build 9907 (fbl awesome1501)

Windows 10 build 9907 (fbl_awesome1501) is a build of Windows 10. It was leaked on 29 January 2015. This build is also noted as being one of the only "leaks" of Windows 10 prior to official release.

UEFI BIOS
This build has to be installed on an UEFI BIOS, otherwise it will hang upon attempting to boot setup.

Window thumbnail color error
Window thumbnails on the taskbar do not change color, but the user can change it after the computer restarts.