Windows Virtual Machine BSOD occurs in HTTP.sys with Error Code 0x7E
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Windows Virtual Machine BSOD occurs in HTTP.sys with Error Code 0x7E

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Article ID: 434408

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Updated On:

Products

VMware vSphere ESXi

Issue/Introduction

  • A Windows OS virtual machine crashes unexpectedly.
  • The vmware.log of the crashed virtual machine contains the following output:
    WinBSOD: Synthetic MSR[0xXXXXXXXX] 0x7e  
    WinBSOD: Synthetic MSR[0xXXXXXXXX] 0xffffffffc0000005
  • Crash dump analysis using WinDbg confirms the crash occurs in the HTTP.sys driver of the System process.
    For example, if you load a memory dump with WinDbg and run !analyze -v, you will get the following output:
    PROCESS_NAME:  System  
    IMAGE_NAME:  HTTP.sys  

Environment

VMware ESXi 8.x

Cause

A BSOD with Error Code 0x7E occurs due to a memory access violation by a system thread.

Bug Check 0x7E: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Since the crash takes place within the HTTP.sys driver, this indicates a failure within the Windows kernel.
Therefore, the Windows OS is the likely cause of the issue.

Resolution

Engage the Microsoft Support to investigate the cause of the virtual machine crash.