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ERROR_RESUME_HIBERNATION
Windows resumed execution from a hibernation image
ERROR_RESUME_HIBERNATION corresponds to Win32 error value documented as: The system was resumed from hibernation. The kernel and applications are continuing after a persisted memory image was restored. Hardware, networks, credentials, and external services may have changed while the machine was powered down.
Where the result appears in real systems
- Resume notifications.
- Device reinitialization.
- Network clients restoring sessions.
- Monitoring agents calculating uptime and elapsed durations.
Evidence to collect before changing the system
capture the hibernation and resume timestamps, boot-session identifier, network profile, device changes, and Kernel-Power events; verify that time sources and expiring credentials were refreshed
Keep the original numeric value, symbolic name, API return path, thread and process identity, and the exact timestamp in one diagnostic record. Those fields prevent later layers from replacing this specific result with a generic failure and make correlation with ETW or Event Viewer practical.
Handling and recovery
Reopen resources whose validity depends on the outside world, renew authentication, and re-query device state. Use monotonic clocks for durations and treat the resume point as a reconnection boundary.
Code that receives this result should classify it according to the operation that produced it: completion information, a recoverable environmental condition, or a programming defect. The result classification should be made at the API boundary where the caller still knows the handle, object, flags, and expected state.
What not to infer from this code
This result is not a fresh cold boot, although many external dependencies should be validated almost as if the process had restarted.
Implementation guidance
Preserve this result through logging and telemetry instead of immediately converting it to free-form text. When it crosses an HRESULT boundary, record both the original Win32 value and the converted HRESULT; when it crosses RPC, JSON, or another protocol, include an explicit error-domain field so the receiver does not convert it twice.
A useful automated test for it should reproduce the relevant state transition, assert the exact returned value, and verify cleanup after both the normal and exceptional path. The test for it should also check that a retry is performed only when the underlying state can genuinely change, because unconditional retries often hide ownership, architecture, power, or resource-negotiation defects.
References
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