Automatic Activation of Memory Integrity in Windows Starting 2026 for Eligible Devices

Microsoft automatically enables Memory Integrity protection on Windows starting October 2026

Starting in October 2026, Windows quality updates will begin automatically enabling Memory Integrity protection on eligible devices, with minimal or no configuration. This introduces a significant change in the operating system's security, especially for organizations managing device fleets.

Quick Response

Starting in October 2026, Windows will automatically enable Memory Integrity on compatible devices. The protection blocks the execution of untrusted kernel drivers, prevents kernel attacks, and enables hotpatch updates. The feature requires Virtualization-based Security (VBS) and is evaluated based on hardware capabilities, compatibility, and performance.

What changes with Memory Integrity

Memory Integrity represents a critical level of protection that only allows trusted kernel drivers and code to run. This feature blocks attacks aimed at compromising the Windows kernel, thus protecting fundamental system functions. Automatic activation occurs through quality updates, simplifying security management for organizations.

Impact on corporate security management

Automatic activation means that the security posture of a device fleet can change between update cycles without the need for change requests. However, previous decisions by administrators and users remain valid: devices where Memory Integrity has already been disabled will not be automatically modified by this rollout. Organizations can still enable it manually through existing Windows security and management tools.

Preliminary compatibility assessment

Before enabling the protection, Windows assesses a device's readiness through three key parameters: hardware capabilities, compatibility, and performance considerations. This process ensures that only suitable devices receive the protection, avoiding potential compatibility issues. However, Microsoft warns that this assessment does not detect all incompatible kernel drivers present in an environment, leaving administrators responsible for managing any non-standard drivers.

Benefits beyond rootkit protection

Memory Integrity offers benefits beyond simple rootkit prevention. It plays a crucial role in supporting hotpatch updates, which install without requiring a reboot. Devices that remain unprotected lose access to this update model, representing a significant advantage for system maintenance and security. Devices excluded from the automatic rollout can also be manually protected using existing Windows security tools.

How to prepare for the change

Organizations managing Windows device fleets should start assessing their systems' compatibility with Memory Integrity. Verifying the inventory of kernel drivers is a crucial step to prevent potential compatibility issues. Additionally, it is advisable to manually test the activation of the protection on a sample of devices to assess the impact on performance and system stability.

Considerations for service providers

Managed Service Providers (MSPs) and Managed Detection and Response (MDR) providers should inform their clients about this upcoming change. Offering support in assessing compatibility and manually activating Memory Integrity could represent significant added value for clients, especially for organizations lacking internal IT security expertise.

Evolution of Windows security

This announcement is part of a broader trend by Microsoft to integrate advanced security features directly into the operating system. These innovations aim to simplify security management for organizations of all sizes while reducing the risk of system compromise. However, the effectiveness of these measures will depend on administrators' ability to adapt to changes and maintain a proactive security posture.

Additional resources for administrators

Microsoft provides a series of additional resources to help administrators prepare for the activation of Memory Integrity. These resources include technical guides, webinars, detailed documentation, and support forums. Administrators are encouraged to explore these resources to deepen their understanding of the new security features and stay updated on the latest developments. Additionally, participating in IT professional communities can offer valuable learning and collaboration opportunities.