While the Eleven Rack and the Eleven Rack Expansion Pack support Windows 8, the Eleven Rack firmware updater application for the Eleven Rack does not function correctly under this version of Windows.
Avid Eleven Rack Update Test - Bonedo
Avid Eleven Rack Guitar Multi Effects Processor and Pro Tools | Musician's Friend
4,937 FREE BenoniStudio Eleven Rack Rigs - Update (Back in a .zip) - YouTube