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Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support

Many legacy systems require specific update builds to maintain compatibility with older macros or plugins. The March 2017 update set is often viewed as a "golden image" for offline workstations. microsoft-office-2016-proplus-with-mar-2017-updates

Mainstream support for Office 2016 ended years ago, and extended security support officially concluded on October 14, 2025 . Support for Office 2016 and Office 2019 ended

It represents the era of perpetual licensing, allowing users to avoid the recurring subscription costs associated with Microsoft 365. Managing and Modernizing Mainstream support for Office 2016 ended years ago,

While the applications continue to function on compatible Windows systems, they no longer receive security patches or feature updates, posing a significant risk to data safety in connected environments. Why Users Still Use This Configuration

For those still utilizing this version, keeping it as secure as possible involves manual checks for any available final updates via the Office Update Options in the "Account" section of any app. However, experts recommend transitioning to Office 2024 or Microsoft 365 to ensure protection against modern cyber threats. If upgrading, it is best practice to uninstall the 2016 version before installing a newer suite to prevent technical conflicts.