Windows 11 to Enable Memory Integrity on More PCs in 2026

Windows 11 is changing how it handles a key security feature for PC gamers and performance enthusiasts. Microsoft will start enabling Memory Integrity on eligible systems in October 2026. This shift matters because many users disable this protection to maximize frame rates, and the new policy will override those preferences for most new updates. Gamers who prioritize raw performance over kernel-level security will need to adjust their expectations for future quality updates.

Microsoft forces kernel security feature on eligible systems

Memory Integrity, also known as Hypervisor-Protected Code Integrity or HVCI, is a security mechanism that isolates kernel code. The feature relies on Virtualization-based Security (VBS) to function, and Windows will enable VBS if it is not already active. Microsoft states that the update respects existing user choices. If a user or administrator deliberately disabled Memory Integrity before the update arrives, the system will not automatically switch it back on.

The performance impact of enabling Memory Integrity typically falls in the single-digit percentage range. Independent reviews and testing have consistently shown these modest losses in general use. However, the impact can be larger in CPU-limited gaming scenarios or on older processors. This variance explains why many performance-focused users have historically kept the feature turned off.

We looked at the last Windows 11 update while tracking recent OS changes, and the balance between stability and performance remains a central theme. Microsoft’s approach aims to secure more systems without forcing a change on those who have already opted out. The company emphasizes that it will respect the deliberate choices made by users and administrators. This policy ensures that those who have already configured their systems for maximum performance are not disrupted by the new rollout.

Microsoft will continue to enable Memory Integrity on eligible PCs starting in October 2026. The update will only affect systems where the feature is currently inactive and has not been manually disabled. This change targets users who have not yet made a specific choice regarding kernel security. The policy provides a clear path for security updates while acknowledging the performance concerns of PC gamers.