The Depths of Windows Virtualization (Part 2) — Memory Even the Kernel Cannot See: How VBS, HVCI, and Credential Guard Work (archived 2026-08-30)

Q: What does this research mean for the field?

Windows Virtualization-Based Security (VBS) utilizes the hypervisor and Second Level Address Translation (SLAT) to establish a secure isolation environment that surpasses standard kernel-level protections. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

Go Komura

doi:10.5281/zenodo.22170924

August 30, 2026Open Access

The Depths of Windows Virtualization (Part 2) — Memory Even the Kernel Cannot See: How VBS, HVCI, and Credential Guard Work (archived 2026-08-30)

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Key Points

To delineate how Windows employs hypervisor features and Second Level Address Translation to isolate critical security components from the main operating system kernel.
Examined the structural division between Virtual Trust Level 0 (standard OS) and Virtual Trust Level 1 (Secure Kernel).
Analyzed the enforcement mechanisms of Second Level Address Translation (SLAT) and the Hyper-V hypervisor on default clean installations.
Virtualization-Based Security (VBS) establishes hardware-rooted isolation that restricts memory access even when the standard NT kernel is fully compromised.
Hypervisor-Protected Code Integrity (HVCI) and Credential Guard successfully prevent unsigned kernel-mode code execution and isolate authentication tokens in protected memory.

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Implication

Technical analysis demonstrates hypervisor-enforced memory isolation across virtual trust levels in Windows, highlighting hardware-backed defenses against kernel-level exploitation.

Abstract

On a clean install to compatible hardware, VBS is enabled by default and uses the hypervisor and SLAT to create isolation stronger than the kernel. This article explains the structure of VTLs, the Secure Kernel, HVCI, and Credential Guard. Archived version of https://comcomponent.com/en/blog/windows-virtualization-internals-vbs-hvci-credential-guard/, as published on 2026-08-30. The live article is maintained and may change after this date. First published 2026-08-22.

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Go Komura (2026) studied this question.

synapsesocial.com/papers/6a95427bf20e493292a74d17 https://doi.org/10.5281/zenodo.22170924

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The Depths of Windows Virtualization (Part 2) — Memory Even the Kernel Cannot See: How VBS, HVCI, and Credential Guard Work (archived 2026-08-30)

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The Depths of Windows Virtualization (Part 2) — Memory Even the Kernel Cannot See: How VBS, HVCI, and Credential Guard Work (archived 2026-08-30)

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