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VSL_INITIALIZATION_FAILED
VSL secure environment initialization failure for VSL_INITIALIZATION_FAILED
VSL_INITIALIZATION_FAILED is bug check code 0x0000006F. VSL refers to the Virtual Secure Level infrastructure used by virtualization-based security. This bug check points at early secure environment initialization rather than a normal driver load failure.
How to read it in a dump
- Check whether VBS, Credential Guard, HVCI, Secure Boot, or hypervisor settings changed.
- Firmware virtualization features and the Windows hypervisor path can be central evidence.
- The stack and nested status decide whether the issue is firmware, policy, secure kernel, or image integrity.
What to check
- Check UEFI Secure Boot, TPM, virtualization extensions, VBS policy, and recent hypervisor/security updates.
- Compare with SECURE_BOOT_VIOLATION or HYPERVISOR_WATCHDOG_TIMEOUT if present.
- Verify that platform firmware and boot components are compatible with enabled security features.
References
- Virtualization-based security
- Kernel-mode support routines
- Microsoft Bug Check Code Reference
- Crash dump files and WinDbg
Dump evidence
Preserve the complete dump, the four bug-check parameters, the exact Windows build, loaded-module list, and the event timeline immediately before the stop. AllStat summarizes the condition as “this result”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.
Analysis order
- Run WinDbg
!analyze -v, then inspect the documented meaning of each parameter instead of relying only on the probably-caused-by line. - find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with vsl / initialization.
- keep third-party filter, security, storage, graphics, and virtualization drivers in the module inventory; removing evidence before dump analysis can obscure the responsible path.
Do not repeatedly reboot a machine affected by this result before collecting the dump and event logs. Recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.
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