System requirements

To get the full Office 365 experience, we recommend that customers meet our system prerequisites. Minimum requirements for Office 365 include Office 2007+, IE 8+ and Windows 7 (see full requirement list below).

Operating system requirements

  • Windows 7
  • Mac OS X 10.5 (Leopard), 10.6 (Snow Leopard), 10.7 (Lion)
  • Windows Server 2008
  • Support Ending
    • Windows Server 2003 on January 1, 2013
    • Windows XP on January 1, 2014 (currently requires SP3)
    • Windows Vista on January 1, 2014 (currently requires SP2)

Office client requirements

  • Office 2010 SP1
    • Service Pack 1 must be deployed by June 1, 2012
  • Office 2007 SP2
  • Office 2011 for Mac and Outlook 2011 for Mac
  • Outlook 2003 via POP and IMAP only
  • .NET 2.0 or later
  • Lync 2010
  • Support Ending
    • Office 2008 for Mac on April 9, 2013
    • Entourage 2008 Web Services Edition on April 9, 2013
    • Outlook 2003 on April 8, 2014

Browser requirements—Administration Center and My Company Portal

  • Internet Explorer 8 or above
  • Latest Firefox “Release” version
  • Safari 5 or above
  • Latest Chrome “Stable” version
  • Support Ending
    • Internet Explorer 7 on October 1, 2012
    • Safari 4 on October 1, 2012
  • Note: Outlook Web App also has a light version that supports a reduced set of features across almost any browser

Active Directory

  • In order to use the optional directory sync and identity federation capabilities, your business’s Active Directory must be a single forest.

Note for Mac users: At this time Communicator for Mac 2011 will not work with Office 365. See FAQ for additional information about Mac-related system requirements.

Note regarding Office Professional Plus in Office 365: Office Professional Plus is not designed to install on servers or virtualized platforms. Microsoft does not provide technical support services for customer and Partner issues related to the installation or use of Office 365 in a virtual environment, Windows Server Remote Desktop, or other terminal service platforms.

Note regarding Outlook: Personal Archive and retention policies vary between licenses. Find more information here.

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