End Windows, how about Office?

Punk Krystal 0 Reputation points
2026-09-16T06:35:43.63+00:00

Now that Windows 10 has reached its end of support, I’m concerned about how this will affect users who are still running Microsoft 365 Apps or other Office applications on Windows 10.

For example, if a user encounters an issue with Outlook, Word, Excel, or Teams on a Windows 10 device, would Microsoft still provide technical support and troubleshooting for the Office application itself? Or could the issue be considered unsupported simply because the application is running on an operating system that is no longer supported?

I’m also wondering how this works when the issue may involve both the Office application and the underlying Windows components. For example, if an Office update introduces a compatibility issue on Windows 10, would Microsoft still investigate and provide a fix, or would users be expected to upgrade to a supported Windows version first?

Finally, as newer Windows versions are released and Microsoft continues to update Microsoft 365 Apps, should organizations expect certain new Office features, updates, or fixes to eventually require a newer version of Windows?

Microsoft 365 and Office | Install, redeem, activate | For business | Other
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  1. Dora-T 1,045 Reputation points Independent Advisor
    2026-09-16T06:47:22.2266667+00:00

    Hi @Punk Krystal

    Based on my research, although Windows 10 reached end of support on October 14, 2025, Microsoft 365 Apps installed on Windows 10 do not immediately stop working. Microsoft will continue providing security updates for Microsoft 365 Apps on Windows 10 through October 10, 2028, to help organizations transition to Windows 11.

    Regarding technical support, customers with a valid Microsoft 365 subscription can still open support cases. However, if an issue occurs only when Microsoft 365 Apps is running on Windows 10 and cannot be reproduced on Windows 11, Microsoft may ask the customer to move to Windows 11 first. If the customer cannot move to Windows 11, Microsoft will still provide troubleshooting assistance, but technical workarounds may be limited or unavailable. In addition, support incidents involving Microsoft 365 Apps on Windows 10 do not include the option to log a product bug or request product updates.

    For issues involving both Office and the underlying operating system, the available troubleshooting options may vary depending on the specific circumstances of the issue.

    As for future functionality, Microsoft 365 Apps on Windows 10 will continue receiving feature updates until Version 2608 is released. After that, devices will remain on Version 2608 and receive security updates only through October 10, 2028.

    For more information, please see the following Microsoft documentation: https://learn.microsoft.com/en-us/microsoft-365-apps/end-of-support/windows-10-support

    I hope this information helps.

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