Microsoft patches Windows Server 2025 forced-upgrade bug after 19 months

Microsoft has resolved a bug that silently pushed Windows Server 2019 and 2022 systems onto Windows Server 2025, often onto hardware with no license for the newer version. Admins first flagged the overnight upgrades in September 2024, and Microsoft initially deflected blame onto misconfigured third-party patch management tools before vendors countered that the root cause was Microsoft’s own release classification and rollout speed.

With the fix in place, the Server 2025 upgrade offer is once again exposed through the Windows Update settings panel for customers who actually want an in-place upgrade. The long delay underscores how a miscategorized feature update can propagate through Windows Update as if it were a routine patch, bypassing normal change-control expectations on production servers.

The repair lands in a stretch of unusually messy Microsoft servicing: recent weeks have seen out-of-band fixes for a broken March preview update, sign-in failures across Edge, Teams, OneDrive and Microsoft 365 Copilot tied to March Patch Tuesday, a Bluetooth visibility regression, and RRAS vulnerabilities on Windows 11 Enterprise.