Windows Error Codes
Searchable reference for Windows error codes — system errors, BSOD stop codes, NTSTATUS, WMI, RPC, MSI installer, AD/Kerberos, BitLocker, DNS, VPN, Hyper-V, COM/DCOM and more. Each entry includes the hex/decimal value, severity, root causes, and a step-by-step troubleshooting workflow.
How to read a Windows error code
Windows surfaces error codes through Win32, NTSTATUS, HRESULT, and many subsystem-specific spaces. Each code has a hex form (e.g. 0x80070005), a signed decimal form (-2147024891), and a symbolic name (ERROR_ACCESS_DENIED). This page lets you look up any of those forms, see what triggers the code, and follow a vetted troubleshooting workflow tuned for the originating subsystem (Windows Update, BSOD, AD/Kerberos, BitLocker, etc.).
35 codes
0xC0000192ErrorSTATUS_NETLOGON_NOT_STARTED
An attempt was made to logon but the Netlogon service was not started.
0xC0000193WarningSTATUS_ACCOUNT_EXPIRED
The user account has expired.
0xC0000224WarningSTATUS_PASSWORD_MUST_CHANGE
User must change password before logging on the first time.
0xC0000234WarningSTATUS_ACCOUNT_LOCKED_OUT
Account locked out due to too many invalid logon attempts.
0xC0000257CriticalSTATUS_DOWNGRADE_DETECTED
A downgrade attack has been detected. Kerberos security failure.
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