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Why Are Windows Server 2025 Hotpatch Updates Becoming the New Default?
Transition to Default Hotpatching
Microsoft will enable hotpatch updates by default starting on Patch Tuesday, May 12, 2026. This transition aims to secure commercial devices faster by delivering smaller update packages that eliminate the need for routine system restarts. Administrators will gain new controls to manage these patches through Microsoft Intune beginning April 1, 2026. Over 10 million production devices already utilize this capability, proving its stability for enterprise deployment.
System and Management Requirements
Organizations must meet specific technical criteria to receive default hotpatching capabilities. Devices failing to meet these standards will continue receiving traditional security updates.
- Systems must run Windows 11 version 24H2, Windows 11 version 25H2, or Windows Server 2025.
- Administrators must manage updates using Windows Autopatch through Microsoft Intune.
- Devices must connect to the update service directly via Intune or the Microsoft Graph API.
- The default tenant configuration applies specifically to devices without an assigned quality update policy.
The Reboot Schedule Explained
Hotpatching modifies the traditional monthly restart cycle to minimize user disruption. The operating system applies critical security code directly into active memory while the system continues running.
- Systems require mandatory restarts four times per year during January, April, July, and October.
- Updates delivered during the remaining eight months install seamlessly without a system reboot.
- Major security fixes, feature updates, and complex bug resolutions will still force a restart regardless of the designated month.
Strategic Guidance for Administrators
IT departments must evaluate their current patch management strategies before fully embracing this default behavior. Client devices generally handle monthly reboots well, and administrators often prefer delaying patches to monitor for unintended software conflicts across large hardware fleets. Furthermore, while the feature provides significant value for maintaining server availability, Microsoft requires an active subscription fee for Windows Server 2025 hotpatching as of July 1, 2025. Administrators should configure their Intune tenant policies proactively to maintain exact control over update distribution.