Windows Autopatch & Rebootless Hotpatch Deployment

1. Prerequisites, Licensing & RBAC

Before beginning an enterprise Autopatch deployment, verify that your tenant meets core subscription and infrastructure requirements:

• Licensing: Microsoft 365 Business Premium, Windows 10/11 Enterprise E3/E5, or Windows 365 Enterprise.
• Roles & Permissions: Requires Global Administrator access for initial tenant consent and Intune Administrator / Policy and Profile Manager roles for ongoing policy assignment.
• Operating System: Target devices must run Windows 11 Enterprise (version 24H2 or later).
• Virtualization-Based Security (VBS): VBS must be provisioned and running to secure in-memory code patches.

2. Understanding Hotpatch & Baseline Cycles

Hotpatching allows monthly security updates to be applied to running processes in-memory without forcing device reboots. This drastically minimizes downtime for critical frontline or mission-critical endpoints.

3. Configuring Deployment Rings & Policies

Planning your deployment rings is essential. While default Autopatch groups exist, custom targeting groups can be synchronized with SCCM device collections or managed directly via Microsoft Intune.

Configure the Windows Quality Update Policy in the Intune Admin Center by navigating to Devices → Windows updates → Quality updates, enabling security updates, and toggling the hotpatch parameter to apply updates without restarting when available.

4. Release Schedules & Deferrals

Define update behavior by establishing deferral days, deadline windows, and grace periods. Test rings should use 0 deferral days for immediate validation, whereas production rings require broader rollout windows to monitor stability.

5. Verification & Troubleshooting

On target devices, verify VBS status via System Information (ensuring it shows as Running and Enabled) and check registry paths under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\current\device\Update for AllowRebootlessUpdates = 1.