Microsoft’s decision to stop issuing security updates for Office 2016 and Office 2019 on October 14, 2025 forces a clear choice on millions of users and IT teams: upgrade to a supported platform, migrate to Microsoft 365, or accept the operational and security trade-offs of third‑party...
0patch
compliance risk
cost comparison
end of support
enterprise it
eos 2025
it roadmap
legacy software
micropatching
microsoft 365migrateto365
migration planning
ms office security
office 2016
office 2019
patch management
security updates
software lifecycle
third-party patches
windows compatibility
