Requirements for Azure AD Connect

Review the complete Azure Active Directory Connect (AAD Connect) server requirements here.

UPDATE: As of 28 December 2016, AAD Connect version 1.1.380.0 was released (78.1 MB).

Server Requirements (Highlights)

  • Windows Server 2008 Standard or newer
    • The machine must be 64-bit OS and can be installed on a stand-alone, member server or domain controller (DC), however, it is not recommended to be installed on a DC. Windows 2012 R2 domain-joined server is recommended;
    • AAD Connect CANNOT be installed on Small Business Server or Windows Server Essentials;
    • Password synchronization requires Windows Server 2008 R2 SP1 or newer.
  • CPU: 1.6 GHz
  • Memory: Recommended minimum of 4GB for up to 50,000 objects; 16GB for 50k-100k objects; 32GB for over 100k objects.
  • Disk space: Recommended minimum of 70GB for up to 50,000 objects; 100GB for 50k-100k objects; 300GB+ for over 100k objects.
  • SQL Express (installed by default with AAD Connect) for up to 100,000 objects;
    • SQL Server is required for over 100k objects.

Software Prerequisites (Highlights)

Other Requirements (Highlights)

  • Local administrator privileges to install AAD Connect
  • Office 365 user with the Global Administrator role assigned
  • Active Directory user with Enterprise Admins rights that will be used to read AD for the sync service


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