Windows Stop Code LAST_CHANCE_CALLED_FROM_KMODE (0x00000015): Meaning and Troubleshooting
Quick Answer LAST_CHANCE_CALLED_FROM_KMODE is the symbolic name for Windows bug check 0x00000015. Microsoft says this bug check appears very infrequently. It...
Quick Answer
LAST_CHANCE_CALLED_FROM_KMODE is the symbolic name for Windows bug check 0x00000015. Microsoft says this bug check appears very infrequently. Its dedicated reference does not explain a specific failure mechanism, define the four bug-check parameters, or provide a code-specific fix. learn.microsoft.com
If you are investigating an actual blue screen, confirm the code in the crash dump, open the dump in WinDbg, and run !analyze -v. Examine the stack and any exception information before attributing the crash to a driver or device. learn.microsoft.com
What Does the Name Tell Us?
KMODE refers to kernel mode in the symbolic name. LAST_CHANCE_CALLED_FROM_KMODE sounds as though it concerns a last-chance handling path called from kernel mode, but Microsoft’s 0x15 page does not explain that path. Treat such a reading as an interpretation of the name, not a documented diagnosis.
In particular, the name alone does not establish:
- Which exception, if any, preceded the halt.
- Which driver or Windows component initiated the path.
- Whether a hardware fault occurred.
- What the four arguments mean.
- Which repair action would resolve a specific computer’s crash.
Microsoft’s published facts for this entry are its value and its rarity. learn.microsoft.com
Stop Code at a Glance
| Item | Information |
|---|---|
| Bug-check value | 0x00000015 |
| Symbolic name | LAST_CHANCE_CALLED_FROM_KMODE |
| Frequency | Microsoft says it appears very infrequently. |
| Published parameter definitions | None on the dedicated 0x15 page. |
| Published code-specific cause or fix | None on the dedicated 0x15 page. |
Do Not Confuse 0x15 with Other Kernel Exception Codes
The wording can tempt readers to apply advice written for another blue-screen error. For example, Microsoft documents KMODE_EXCEPTION_NOT_HANDLED as bug check 0x0000001E, with its own meaning and investigation guidance. It is a different stop code. Verify the full hexadecimal value before using an article’s parameter definitions or recommended debugging steps. learn.microsoft.com
| Code | Name |
|---|---|
0x00000015 |
LAST_CHANCE_CALLED_FROM_KMODE |
0x0000001E |
KMODE_EXCEPTION_NOT_HANDLED |
A search result, diagnostic tool, or screenshot may show only part of a code. The original dump is the better source for the value and its arguments.
How to Investigate an Actual 0x15 Crash
1. Preserve the crash dump
Keep the dump created at the time of the failure. The stop-code name on the blue screen provides limited information; the dump may contain the execution context needed to investigate further.
If the issue repeats, keep more than one dump when possible. Comparing crashes can reveal whether they follow the same stack or occur in different places.
2. Analyse the dump with WinDbg
Open the dump and run:
!analyze -vRecord the reported bug-check code, all four arguments, stack trace, and any module or exception information shown. Microsoft’s general bug-check reference recommends !analyze for displaying information about a stop code. An automatically named module is a lead to investigate, not conclusive proof that it contains the defect. learn.microsoft.com
3. Examine the stack and context
Display the stack with a command such as:
kvLook at the code path leading to the halt. Determine whether a third-party driver appears in a relevant part of that path and whether the dump contains an exception record or other context that explains what happened. Do not assign undocumented meanings to 0x15’s arguments merely because their values resemble addresses or familiar status codes.
4. Check what changed before the first crash
Compare the crash dates with recent driver updates, new devices, firmware changes, and Windows updates. Check the System log in Event Viewer for nearby errors. A change that occurred at the same time is worth investigating, but timing alone does not prove causation.
5. Act on a supported finding
If repeated dumps point to the same third-party driver and a corresponding update or rollback is available, use the vendor’s supported procedure. If the evidence remains unclear, provide the dumps and reproduction details to the driver vendor or a Windows debugging specialist.
Guidance for Driver Developers
If you maintain the code implicated by the stack, inspect the faulting path and its exception handling in the context of the actual Windows build. Track the first failure that led to the halt, rather than assuming the symbolic bug-check name describes the initiating defect.
A focused investigation should establish:
- The failing thread and call stack.
- The relevant module and instruction or callback.
- Any exception record available in the dump.
- The state of objects and resources used by that code.
- Whether the problem reproduces after a specific input or timing sequence.
These are general kernel-debugging steps. Microsoft has not published a 0x15-specific parameter map or a named API misuse that can be asserted for every occurrence. learn.microsoft.com
What Should an End User Do?
If you saw LAST_CHANCE_CALLED_FROM_KMODE on a blue screen:
- Record the exact code and when it happened.
- Keep the crash dump for analysis if the problem recurs.
- Review recent changes to drivers or attached devices.
- Use the dump result to decide which vendor or component to investigate.
Avoid a generic “0x15 fix” that edits the registry, replaces hardware, or disables unrelated services without first confirming the failure. Microsoft’s dedicated reference does not support a universal repair for this code. learn.microsoft.com
Frequently Asked Questions
What is LAST_CHANCE_CALLED_FROM_KMODE?
It is the symbolic name for Windows bug check 0x00000015. Microsoft describes it as occurring very infrequently. learn.microsoft.com
Does it mean an application caused the crash?
The name does not establish that. Investigate the dump to identify the kernel execution path and any relevant driver.
Is it the same as KMODE_EXCEPTION_NOT_HANDLED?
No. KMODE_EXCEPTION_NOT_HANDLED is 0x0000001E, a separate bug check with separate documentation. learn.microsoft.com
What do its four parameters mean?
Microsoft’s dedicated 0x15 page does not define them. Record the values, but do not apply the parameter table from 0x1E or another stop code. learn.microsoft.com
Which driver should I update?
There is no driver identified by the code alone. Use dump analysis and the system’s change history to determine whether a particular driver is involved.
Can WinDbg automatically fix the blue screen?
No. !analyze -v presents diagnostic information. A fix depends on the cause established from the dump and surrounding evidence. learn.microsoft.com
Summary
LAST_CHANCE_CALLED_FROM_KMODE (0x00000015) is a very rare Windows bug check for which Microsoft publishes little detail. Verify an apparent occurrence in the crash dump, inspect its stack and context with WinDbg, and base any driver or hardware action on that evidence. Do not infer a specific cause from the symbolic name. learn.microsoft.com
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