Windows v7 64-bit SP1(Professional) and Windows v8.1 (Professional and Enterprise), Windows v10 64-bit (Professional, Creators, and Enterprise).Operating System Update: Depending upon your hardware the qualified Operating Systems are: Location: This release is available from Avid Master Accounts, Application Manager, and the Avid Download Center (login and password required). Avid is pleased to announce the September release of Media Composer 2018 which is available as of today, September 14th, 2018 at 4:30 AM ET.