Outlook 2010 is now retired

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If you're running Microsoft Office on a Windows 8.1 PC, we strongly recommend you move to a supported Windows operating system to maintain the reliability and stability of Microsoft 365. See the System requirements page for more details.

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The latest versions of Microsoft 365 work with Outlook for iOS and Outlook for Android to help you work more efficiently and easily wherever you are. Check out Outlook for your mobile device now.

View help and training content for Outlook on the Microsoft 365 Help & Training site.