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What does Windows error code 787 (ERROR_ABANDON_HIBERFILE) mean?

 
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ERROR_ABANDON_HIBERFILE

windows invalidated a hibernation file and will no longer use it for resume.

ERROR_ABANDON_HIBERFILE means that this condition The saved hibernation image failed a validity check or no longer matches the machine state closely enough for safe restoration. Windows therefore abandons the file and continues with a normal boot or another recovery path.

Where the result appears

What the result tells you

The value identifies a specific Windows state, but it does not by itself identify the component that introduced that state. Preserve the original this result value, the API or subsystem that produced it, and the object being operated on. A wrapper that replaces it with a generic exception or Boolean failure removes the distinction needed to choose the correct recovery path.

Diagnostic evidence to collect

Correlate the result evidence on one timeline. The first event that changes the state associated with this result is usually more valuable than later retries returning the same code. Record process and thread identity, session, timestamp, API parameters, and the immediately preceding successful operation.

Handling and recovery

Allow Windows to discard the invalid image and boot normally. If the event repeats, disable and re-enable hibernation to recreate the file, verify system-volume health and capacity, and update storage or firmware components implicated in resume failures.

Retry after this result only when the evidence shows that an external condition can change. When it is caused by malformed input, revoked authority, unsupported state, hardware damage, or an offline maintenance requirement, an unchanged retry adds noise and can overwrite the earliest useful diagnostics.

Common misinterpretation

Abandoning the hiberfile does not mean user files were deleted. The lost state is the saved memory image; unsaved application work may be affected, but ordinary disk files are separate.

Guidance for developers

Keep it in its Win32/LRESULT domain in structured telemetry. When converting it to an HRESULT, exception, RPC response, or JSON field, retain the source domain and numeric value alongside the human-readable text. Do not branch on the localized message string for it.

A it test should construct the specific state, assert the exact result, and verify that partial resources are released. The recovery test for it should prove that the operation is either deferred until a measurable state change or fails without an uncontrolled retry loop.

References


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