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SAVER_NAVSERVERTIMEOUT
SAVER navigation-server timeout bucket for SAVER_NAVSERVERTIMEOUT
SAVER_NAVSERVERTIMEOUT is bug check code 0x0000F009.
This bucket indicates that an internal navigation or shell/app-model service path did not respond in the expected time. The name is a diagnostic routing clue, not a published kernel contract.
How to read it in a dump
- 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.
- the useful evidence is the dump type, WER bucket, triggering process, provider-specific data, and event-log context around the capture.
- the symbolic name narrows the subsystem that requested capture; it does not by itself identify a defective driver or application.
What to check
- Check shell, Start, app-model, and service-host events around the timeout.
- Look for blocked RPC calls or COM activation involving the navigation service path.
- Separate a hung UI process from a system-wide kernel fault by checking dump type and stack.
References
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