Windows 11 November Update Expands Memory Integrity Rollout

What Memory Integrity does

Memory Integrity is part of Windows core isolation. It uses virtualization to separate critical kernel processes from the rest of the system, making it harder for malicious code to tamper with the kernel or load untrusted code into it. Because it sits at such a low level, it is also sensitive to the quality of the drivers installed.

Why it matters for players

The broader rollout means users who never touched the setting may find it enabled after updating. Those who care about every frame in games should check whether their frame rates change. Owners of older hardware or niche peripherals should watch for driver issues, since incompatible drivers can be the main obstacle to running the protection.

The feature can be found in the Windows Security app under Device security and Core isolation. Users who run into problems should first look for updated drivers from the hardware maker before considering turning the protection off, as doing so lowers kernel security.

The details of the scale of the rollout and the exact performance impact have not been spelled out in the available material, so real-world results will likely vary by hardware and driver set.