Monoblock pc lenovo ideacentre c445 full hardware support for ms windows 7 / windows 8 (32/64-bit), so it is recommended to use it as the main system. the published set of drivers present versions for microsoft windows 7 / windows 8 (32/64-bit).. Windows 8.1 pro systems that are downgraded to windows 7 pro (downgrade
program)-- (get windows8.1 recovery media) windows 10 think systems and selected idea pad and desktop systems (get windows10 recovery media and digital download only). System: windows 8 windows 8 64-bit windows 7 windows 7 64-bit description: thinkvantage system update 5.