Microsoft documentation and public Windows 11 25H2 release-health notes in the provided context do not list a specific known issue for Windows 11 25H2 where KERNEL_SECURITY_CHECK_FAILURE (0x139) is attributed to dxgmms2.sys/dxgkrnl.sys on Intel UHD 770.
However, the 0x139 bug check is documented as kernel detection of corruption of a critical data structure, and the guidance focuses on driver and system changes as likely causes. For graphics-path crashes, this typically means treating the graphics stack (GPU driver, DirectX components, and any recent updates) as primary suspects.
Based on the documented guidance for 0x139 and stop errors, a recommended diagnostic/mitigation path is:
- Collect and analyze crash dumps
- Ensure systems are configured to generate kernel or full memory dumps.
- Use WinDbg and
!analyze -von multiple dumps to confirm that 0x139 is consistent and that dxgmms2.sys/dxgkrnl.sys are always on the stack. - Use the 0x139 parameter table to see what type of corruption is being detected (Parameter 1). This can help distinguish stack cookie violations, LIST_ENTRY corruption, invalid parameters, etc.
- If Parameter 1 is
3(LIST_ENTRY corruption), follow the specific guidance for list corruption (for example, suspect drivers mismanaging internal lists or synchronization objects).
- Correlate with recent changes (updates, drivers, services)
- Use Event Viewer → System log to correlate the bug checks with Windows updates or driver installations, as recommended for 0x139 and general stop errors.
- Specifically look for critical errors and driver updates in the same time window as the BSODs.
- Driver and device validation
- In Device Manager, check for any devices with warning icons and review the Events tab for the display adapter to see if there are related driver issues.
- Update or roll back the Intel graphics driver on a test system to see if the issue is driver-version-specific.
- If the issue started after a particular update, test temporarily reverting that update on a subset of systems (as already done in similar Insider/preview scenarios in the context) to validate correlation.
- Use Driver Verifier and special pool (for driver-related corruption)
- For suspected driver corruption (including graphics drivers), enable Driver Verifier with appropriate settings (including special pool) for third-party drivers to try to catch the corruption closer to the source, as suggested for 0x139 LIST_ENTRY and synchronization-object issues.
- General stop-error troubleshooting
- Follow the general Windows 11 stop-error guidance: treat unexpected restarts and BSODs as potentially caused by hardware, drivers, or software; use the stop code and module information to narrow down the cause.
- Escalation to Microsoft with data
- Since minidumps and system details are available, use:
- Feedback Hub to submit a report including crash dumps and a clear description of the hardware model, Windows build, driver version, and correlation with KBs.
- For organizational environments, use Windows release health in the Microsoft 365 admin center and/or open a support case via Support for business to provide dumps and detailed repro information.
- Since minidumps and system details are available, use:
This path aligns with the documented handling of KERNEL_SECURITY_CHECK_FAILURE (0x139) and Windows 11 stop errors, and it is the recommended way to determine whether the crashes are due to a graphics driver issue, a Windows kernel/graphics stack regression, or another third-party driver.
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