[Bug]: supHardenedWinVerifyProcess failed with VERR_SUP_VP_NT_QI_VIRTUAL_MEMORY_ERROR (-5637) on Windows host

[leemgs]

Version

7.2.6

Host OS Type

Windows

Host OS name + version

Windows 11 (exact build to be confirmed, e.g., Windows 11 23H2 Build 22631.x)

Host Architecture

x86

Guest OS Type

Windows

Guest Architecture

x86

Guest OS name + version

Linux (attempted) / Windows (also reproducible)

Component

Unspecified

What happened?

When attempting to start a virtual machine, VirtualBox fails immediately with the following error dialog:

VirtualBox - Error In supR3HardNtChildPurify

supHardenedWinVerifyProcess failed with
VERR_SUP_VP_NT_QI_VIRTUAL_MEMORY_ERROR:
(rc=-5637)

Please try reinstalling VirtualBox.

where: supR3HardNtChildPurify what: 5
VERR_SUP_VP_NT_QI_VIRTUAL_MEMORY_ERROR (-5637) -
Process Verification Failure: Error query virtual memory information.

The VM does not start at all. The e

rror appears before the guest OS boot process begins.

Expected behavior

The virtual machine should start normally and proceed to boot from the attached ISO image.

How can we reproduce this?

1. Install VirtualBox 7.0.x on Windows 11 host.
2. 3. Create a new virtual machine (Linux or Windows guest).
3. 5. Attach a valid ISO image.
4. Click Start.
5. The error appears immediately and VM execution is aborted.

This happens consistently across newly created VMs.

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.