What does BSOD 61458 (SAVER_UNEXPECTEDSHUTDOWN) mean?

 
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SAVER_REPORTNOTIFICATIONFAILURE SAVER_RPCFAILURE

SAVER_UNEXPECTEDSHUTDOWN

SAVER unexpected-shutdown bucket for SAVER_UNEXPECTEDSHUTDOWN

SAVER_UNEXPECTEDSHUTDOWN is bug check code 0x0000F012. This bucket records an unexpected shutdown condition in the SAVER diagnostic family. It is not enough to explain the shutdown by itself; power, thermal, battery, bug check, and WER evidence must be correlated.

How to read it in a dump for SAVER_UNEXPECTEDSHUTDOWN

  • Treat this value as an internal diagnostic bucket from the Windows SAVER family, not as a classic blue-screen stop code with public parameter semantics.
  • For SAVER_UNEXPECTEDSHUTDOWN, the useful evidence is the dump type, WER bucket, triggering process, provider-specific data, and event-log context around the capture.
  • For SAVER_UNEXPECTEDSHUTDOWN, the symbolic name narrows the subsystem that requested capture; it does not by itself identify a defective driver or application.

What to check for SAVER_UNEXPECTEDSHUTDOWN

  • Check Kernel-Power, thermal, battery, firmware, and previous bug check records.
  • Determine whether the system lost power, bug-checked, reset, or was forcibly powered off.
  • Preserve event logs before repeated restarts overwrite the evidence.

References for SAVER_UNEXPECTEDSHUTDOWN

Dump evidence for SAVER_UNEXPECTEDSHUTDOWN

For SAVER_UNEXPECTEDSHUTDOWN, 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 “SAVER_UNEXPECTEDSHUTDOWN”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SAVER_UNEXPECTEDSHUTDOWN

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SAVER_UNEXPECTEDSHUTDOWN parameter instead of relying only on the probably-caused-by line.
  • For SAVER_UNEXPECTEDSHUTDOWN, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with saver / unexpectedshutdown.
  • For SAVER_UNEXPECTEDSHUTDOWN, 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 SAVER_UNEXPECTEDSHUTDOWN before collecting the dump and event logs. For SAVER_UNEXPECTEDSHUTDOWN, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.

Dump evidence for SAVER_UNEXPECTEDSHUTDOWN

For SAVER_UNEXPECTEDSHUTDOWN, 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 “SAVER_UNEXPECTEDSHUTDOWN”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SAVER_UNEXPECTEDSHUTDOWN

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SAVER_UNEXPECTEDSHUTDOWN parameter instead of relying only on the probably-caused-by line.
  • For SAVER_UNEXPECTEDSHUTDOWN, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with saver / unexpectedshutdown.
  • For SAVER_UNEXPECTEDSHUTDOWN, 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 SAVER_UNEXPECTEDSHUTDOWN before collecting the dump and event logs. For SAVER_UNEXPECTEDSHUTDOWN, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.

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