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INVALID_SLOT_ALLOCATOR_FLAGS (0x0000016D): Stop Code Guide

0x0000016D is a kernel/debugger stop code result. This indicates that the flags supplied to one of the slot allocator APIs were invalid.

Code reference and safe checks

Read the exact screen and operation before selecting a repair. This page does not run commands or collect files, keys or logs.

What this value means

This indicates that the flags supplied to one of the slot allocator APIs were invalid.

INVALID_SLOT_ALLOCATOR_FLAGS identifies a stop-code family. The four bug-check parameters and dump, if available, help distinguish the actual failure path.

Identity and provenance of 0x0000016D
Code0x0000016D
Short hex form0x16D
SymbolINVALID_SLOT_ALLOCATOR_FLAGS
Windows familyBlue screen and stop codes
Source levelMicrosoft bug-check page

Safe next steps

  1. For 0x0000016D (INVALID_SLOT_ALLOCATOR_FLAGS), record the exact stop code and parameters. Microsoft’s debugger reference may describe a kernel condition rather than a consumer fix.
  2. If crashes repeat, inspect the dump locally with official WinDbg and compare its parameters with this code’s Microsoft page.
  3. Do not enable Driver Verifier or change firmware as a generic first step; ask qualified support if the PC cannot start.

After one step, repeat the original operation and record whether this same code returns. A different code needs a fresh interpretation.

What this code cannot prove

The source establishes the identifier and reference meaning. It does not establish the cause on your specific PC.

If Windows no longer starts or the issue repeats with hardware warnings, protect files and use manufacturer or qualified support.

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Official reference and verification

Source type: Microsoft bug-check page. Checked against the source set on Nov 2, 2026.

Open the source reference ↗

The reference gives the meaning of this identifier. It does not inspect your PC or guarantee that one repair will work.