0xDEADDEAD MANUALLY_INITIATED_CRASH — Windows Error Code

Q: What does the Windows error code 0xDEADDEAD mean?

It is the Win32 / NTSTATUS code MANUALLY_INITIATED_CRASH (decimal -559038771). Crash was manually triggered via keyboard shortcut or NotMyFault tool.

Q: How do I decode 0xDEADDEAD in PowerShell?

Run [ComponentModel.Win32Exception]::new(-559038771).Message in any PowerShell session. For HRESULT-style codes, use err.exe from the Windows SDK or the WinDbg !error command.

Q: Where does Windows typically log this error?

It depends on the originating subsystem (Windows Update → %WinDir%\WindowsUpdate.log; AD/Kerberos → Security event log on the DC; BSOD → minidump under C:\Windows\Minidump; MSI → %TEMP%\msi*.log; WMI → Microsoft-Windows-WMI-Activity). Always cross-reference the timestamp and module name with the Application and System event logs.

Description

MANUALLY_INITIATED_CRASH (hex code 0xDEADDEAD, decimal -559038771) is a Windows informational-level error code in the BSOD Stop Codes family. Microsoft surfaces this code through the Win32 API, the Common Language Runtime, the kernel, the event log, PowerShell, command-line tools (sfc, dism, gpupdate, sc), and Windows-side applications such as Outlook, Teams, Office, and System Center.

Crash was manually triggered via keyboard shortcut or NotMyFault tool.

This page documents what triggers 0xDEADDEAD, the most common scenarios where it appears, the likely root causes, and a step-by-step troubleshooting workflow you can run against affected endpoints. It is intended for system administrators, MSP technicians, helpdesk engineers, and anyone diagnosing Windows behavior in a managed environment.

In-depth explanation

This is an informational code. It signals a normal, expected status — Windows surfaces it so callers can react accordingly. It is not necessarily an indicator of a problem.

It is a kernel bug check code. Windows bluescreens with this stop code, writes a minidump, and reboots. The exact failing module is captured in the dump and can be analyzed with WinDbg or BlueScreenView.

The code can be looked up programmatically in PowerShell with [ComponentModel.Win32Exception]::new(-559038771).Message (for Win32 / NTSTATUS codes that map cleanly), or with net helpmsg <decimal> for the legacy decimal range. For HRESULT-style codes, decode the facility and code with err.exe from the SDK or via the WinDbg !error command.

Common causes

Faulty or out-of-date kernel-mode driver (storage, GPU, NIC, USB controller).
Defective RAM — run MemTest86 to confirm.
Failing storage (SSD/NVMe firmware bug, SATA cable, or media wear).
Overclocking or unstable XMP / DOCP profile.
Corrupted system file or NTFS metadata — repair with sfc /scannow + chkdsk /f.

Troubleshooting steps

Capture the latest minidump under C:\Windows\Minidump and open it with WinDbg (or BlueScreenView for a faster overview).
Use !analyze -v in WinDbg to identify the failing module, then update or roll back that driver.
Run Driver Verifier (verifier.exe) on third-party drivers if the failing module is not obvious.
Validate hardware: MemTest86 for RAM, chkdsk /f /r for storage, manufacturer diagnostics for CPU/GPU.
If recent: roll back the latest Windows Update or feature update via Settings > Recovery > Go back.

Decode in PowerShell

# Decode 0xDEADDEAD (-559038771) in PowerShell
[ComponentModel.Win32Exception]::new(-559038771).Message

# Or via WinDbg / err.exe (Windows SDK)
# err 0xDEADDEAD

# Or net helpmsg (legacy decimal range only)
# net helpmsg <decimal>

Frequently asked questions

What does the Windows error code 0xDEADDEAD mean?

It is the Win32 / NTSTATUS code MANUALLY_INITIATED_CRASH (decimal -559038771). Crash was manually triggered via keyboard shortcut or NotMyFault tool.

How do I decode 0xDEADDEAD in PowerShell?

Run [ComponentModel.Win32Exception]::new(-559038771).Message in any PowerShell session. For HRESULT-style codes, use err.exe from the Windows SDK or the WinDbg !error command.

Where does Windows typically log this error?

It depends on the originating subsystem (Windows Update → %WinDir%\WindowsUpdate.log; AD/Kerberos → Security event log on the DC; BSOD → minidump under C:\Windows\Minidump; MSI → %TEMP%\msi*.log; WMI → Microsoft-Windows-WMI-Activity). Always cross-reference the timestamp and module name with the Application and System event logs.

Is this code recoverable?

Yes — this code is informational or warning-level. The operation can normally be retried after addressing the condition described in the summary.

Should I open a Microsoft support case for this?

Open a case if the error reproduces after applying the troubleshooting steps, particularly if it blocks production workloads, occurs across multiple endpoints, or is associated with a security boundary (BitLocker recovery, Kerberos failure, DCOM hardening, SmartScreen / WDAC). Have a fresh CBS log, minidump, or Get-WinEvent export ready before opening the case.