According to the latest announcement on Microsoft’s document, Microsoft 365 applications will cease supporting Windows 10 starting October 14, 2025. To continue using these applications, users must upgrade to Windows 11.
This decision stems from the fact that Windows 10 will reach the end of mainstream support on the same date. Without security updates for the operating system, continuing to use Microsoft 365 on Windows 10 would no longer ensure sufficient protection. In such a scenario, even if Microsoft were to provide security updates for Microsoft 365, they would be rendered ineffective.
However, the end of support does not mean Microsoft 365 applications will immediately become unusable. Microsoft’s approach allows users to continue using the applications, but over time, they will no longer receive feature updates or security patches. Compatibility issues that arise subsequently will also remain unaddressed.
Additionally, certain Microsoft 365 applications require internet activation and connectivity to function. While Microsoft could theoretically block Windows 10 systems via backend servers, the company currently has no immediate plans to implement such restrictions.
These measures are likely part of Microsoft’s broader strategy to encourage users to upgrade to Windows 11. For many users, the reluctance to upgrade stems not from unwillingness but from hardware limitations. In such cases, Microsoft’s recommendation leaves users with little choice but to invest in new hardware.
For those who choose to remain on Windows 10, the lack of security updates will inevitably pose vulnerabilities. However, Microsoft offers a paid Extended Security Updates (ESU) program for $30 per year, allowing users to receive critical security patches.
Ultimately, Microsoft’s unwavering stance on hardware requirements for Windows 11 has left millions of devices worldwide unable to upgrade. For users unwilling to purchase new hardware, bypassing the TPM 2.0 requirement may be the only viable option.
