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The big picture: Microsoft will soon enable a security feature designed to take advantage of virtualization capabilities available in modern x86 processors. However, the company doesn't clearly explain that this represents a significant change to how Windows runs, with potentially substantial performance implications for some types of applications.
Microsoft recently confirmed that memory integrity protection will soon be enabled by default on some Windows 11 devices. The change will arrive in October 2026 for eligible Windows PCs and will provide stronger kernel-level protection against malicious software and other threats. However, it could also have a detrimental effect on game performance, which is likely a significant concern for consumers who aren't part of a security-focused enterprise organization.
Memory integrity protection is built upon Virtualization-based Security (VBS), a technology designed to leverage hardware-level virtualization capabilities in Intel (VT-x) and AMD (AMD-V) CPUs to isolate sensitive data and processes within Windows. VBS protects crucial Windows components from external tampering, Microsoft explains.
