Windows 11 Activates Memory Integrity Starting October 2026

Microsoft will activate the feature known as Memory Integrity on all supported Windows 11 systems on October 13, 2026. This measure is part of the October Patch Day and aims to significantly improve system security. Memory Integrity, also known as Hypervisor-protected Code Integrity (HVCI), prevents unverified kernel-mode code from being loaded, thereby reducing the risk of malware attacks. The activation of this feature is intended for all Windows 11 computers that are still receiving updates.

Microsoft has announced that a compatibility check will be conducted prior to activation to ensure that the hardware meets the requirements. Prerequisites include an Intel processor from the 8th generation or newer, AMD Zen 2 or newer, and Qualcomm Snapdragon 8180 or newer. Additionally, systems must have at least 8 GB of RAM on x64 architectures and a 64 GB SSD. The firmware must also enable virtualization, and the installed drivers must be compatible with Memory Integrity.

These measures are designed to ensure that systems are optimally protected. Memory Integrity is not new; however, it has not been activated on many computers until now. With the upcoming update, it will be enabled by default, which is expected to improve the security situation for many users. Microsoft has emphasized that this feature is particularly aimed at blocking unsigned rootkits and raising the barrier for driver-based kernel attacks. However, there are also concerns regarding its impact on gaming performance.

Reports indicate that enabling Memory Integrity alongside virtualization-based security (VBS) could reduce gaming performance by up to 15 percent. This information comes from Tom’s Hardware, which has conducted similar measurements in the past. Microsoft has noted in its gaming guidelines that players who rely on high performance may need to temporarily disable these protections while gaming. However, this could compromise system security, presenting a difficult decision for many users. The performance loss could be particularly noticeable on older machines.

Users who depend on the latest games may have to make compromises on security to ensure a smooth gaming experience. However, Microsoft has not provided specific recommendations on how users should handle this situation. The introduction of Memory Integrity is part of a broader strategy by Microsoft to enhance the security of Windows 11. With the activation of VBS as part of the update, additional security features will be provided to protect systems against modern threats. The exact impact of these changes on user experience will only become apparent after activation.

The security measures associated with the activation of Memory Integrity and VBS are part of Microsoft's ongoing efforts to ensure system integrity. Users are encouraged to regularly update their systems to benefit from the latest security improvements. Microsoft plans to enable Memory Integrity for all supported Windows 11 systems starting October 13, 2026.