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PFN_REFERENCE_COUNT (0x0000001C): Stop Code Guide

0x0000001C is a memory-related stop code result. This indicates that a reference count error was detected. It can be caused by counter overflows, underflows, or an object that is used after it has been freed. Examine the stack to determine the fault. Note: This bug check code is used to report multiple types of reference count errors, not necessarily related to Memory Manager Page Frame Numbers (PFNs).

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 a reference count error was detected. It can be caused by counter overflows, underflows, or an object that is used after it has been freed. Examine the stack to determine the fault. Note: This bug check code is used to report multiple types of reference count errors, not necessarily related to Memory Manager Page Frame Numbers (PFNs).

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

Identity and provenance of 0x0000001C
Code0x0000001C
Short hex form0x1C
SymbolPFN_REFERENCE_COUNT
Windows familyBlue screen and stop codes
Source levelMicrosoft bug-check page

The linked debugger page also describes its parameters: The !analyze debug extension displays information about the bug check and can be helpful in determining the root cause.

Safe next steps

  1. For 0x0000001C (PFN_REFERENCE_COUNT), record the stop code, parameters, recent drivers, and whether Windows remains stable in Safe Mode.
  2. Use an official memory diagnostic only as evidence; this code alone does not prove that a RAM module is bad.
  3. Back up files before extended tests or system changes, especially if startup or storage is unstable.

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.

Related references

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Official reference and verification

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

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