Microsoft Office 2016 Pro Plus 16.0.4266.1001 V... ^new^ -

: Introduces real-time co-authoring on local infrastructure, PDF reflow editing, and the "Tell Me" assistant box.

By 2016, Microsoft was aggressively pushing as the default deployment method, even for enterprise. However, many large organizations resisted, preferring traditional MSI-based installation via Group Policy or System Center Configuration Manager. Build 16.0.4266.1001 is notable because it was one of the last MSI-based builds available for Office 2016 Pro Plus before Microsoft gradually phased out MSI for future versions. This made it a "frozen in time" deployment for air-gapped or highly controlled environments. Microsoft Office 2016 Pro Plus 16.0.4266.1001 V...

| Scenario | Recommended Action | |----------|--------------------| | | Switch to Microsoft 365 Family ($99.99/year) – always updated, 1TB OneDrive. | | Small business | Subscribe to Microsoft 365 Business Standard – includes teams, Exchange, and the latest Office versions. | | Large enterprise (needs on-premises) | Move to Office LTSC 2024 (still MSI-based but with 5 years of security updates) or Office 2021 as a stopgap. | | Stuck with legacy dependencies | Isolate the machine running build 4266.1001 from the internet (air-gap). Use it only for the specific legacy task. No network, no USB transfers from unknown sources. | Build 16

That article would cover:

Extended support is currently scheduled to end on . After this date, using Office 2016 Pro Plus poses a security risk as unpatched vulnerabilities will no longer be fixed. | | Small business | Subscribe to Microsoft

The Professional Plus edition is the most comprehensive tier of the 2016 suite, containing: : Introduces real-time co-authoring.

Are you using the or Click-to-Run version? Which operating system are you deploying this suite onto?