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PP1_INITIALIZATION_FAILED
PP1_INITIALIZATION_FAILED identifies failure during Phase 1 initialization of the kernel-mode Plug and Play manager. Microsoft notes that this phase performs most PnP-manager initialization, including setting up registry files and other environment state that drivers use during later I/O initialization.
Different from PP0
The neighboring PP0_INITIALIZATION_FAILED code names the earlier Phase 0 path. For PP1, the documented registry and driver-environment work makes boot-driver configuration and PnP initialization context particularly relevant. The code still has no public bug-check parameters.
What to correlate
- Use the dump stack to locate the failing Phase 1 path and the most recent driver or PnP component involved.
- Review changes to boot-critical driver packages and device configuration near the first occurrence.
- Do not invent meanings for the four stop arguments; Microsoft lists the parameters as none.
References
- Microsoft: Bug Check 0x90 PP1_INITIALIZATION_FAILED
- Microsoft: Plug and Play architecture
- Microsoft: Analyze a kernel dump
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