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
0xC0000001ErrorSTATUS_UNSUCCESSFUL
General unsuccessful status. Operation failed for an unspecified reason.
0xC0000005CriticalSTATUS_ACCESS_VIOLATION
Memory access violation. A process attempted to access memory it has no rights to. Often causes application crashes.
0xC0000008ErrorSTATUS_INVALID_HANDLE
An invalid handle was specified.
0xC000000DErrorSTATUS_INVALID_PARAMETER
An invalid parameter was passed to a service or function.
0xC000000FErrorSTATUS_NO_SUCH_FILE
The file does not exist.
0xC0000016InformationalSTATUS_MORE_PROCESSING_REQUIRED
More processing is required. Common in Kerberos/NTLM multi-step authentication.
0xC0000017ErrorSTATUS_NO_MEMORY
Not enough virtual memory or paging file quota to complete the operation.
0xC0000022ErrorSTATUS_ACCESS_DENIED
A process has requested access to an object but has not been granted those access rights.
0xC0000034ErrorSTATUS_OBJECT_NAME_NOT_FOUND
Object name not found. Registry key, file, or device does not exist.
0xC0000043WarningSTATUS_SHARING_VIOLATION
A file cannot be opened because it has been opened in an incompatible sharing mode.
0xC000006AWarningSTATUS_WRONG_PASSWORD
The specified password is incorrect.
0xC000006CWarningSTATUS_PASSWORD_RESTRICTION
Password does not meet domain password policy requirements.
0xC000006DErrorSTATUS_LOGON_FAILURE
Logon failure: unknown username or bad password.
0xC000006EErrorSTATUS_ACCOUNT_RESTRICTION
Logon failure: account restriction prevents this user from logging on.
0xC000006FWarningSTATUS_INVALID_LOGON_HOURS
Logon failure: account is not authorized to log on at this time.
0xC0000070WarningSTATUS_INVALID_WORKSTATION
Logon failure: user is not allowed to log on from this workstation.
0xC0000071WarningSTATUS_PASSWORD_EXPIRED
Logon failure: the password for this account has expired.
0xC0000072WarningSTATUS_ACCOUNT_DISABLED
Logon failure: account is currently disabled.
0xC000007CErrorSTATUS_NO_LOGON_SERVERS
There are no logon servers available to service the logon request. Domain controller unreachable.
0xC0000089ErrorSTATUS_INVALID_IMAGE_FORMAT
The specified image file did not have the correct format.
0xC000009AErrorSTATUS_INSUFFICIENT_RESOURCES
Insufficient system resources to complete the API.
0xC00000BBErrorSTATUS_NOT_SUPPORTED
The requested operation is not supported.
0xC0000101WarningSTATUS_DIRECTORY_NOT_EMPTY
The directory is not empty.
0xC0000120InformationalSTATUS_CANCELLED
The operation was cancelled.
0xC0000135ErrorSTATUS_DLL_NOT_FOUND
A required DLL was not found.
0xC0000139ErrorSTATUS_ENTRYPOINT_NOT_FOUND
The procedure entry point could not be located in the DLL.
0xC0000142ErrorSTATUS_DLL_INIT_FAILED
DLL initialization routine failed. Indicates a dependency or system file issue.
0xC0000185CriticalSTATUS_IO_DEVICE_ERROR
The request could not be performed because of an I/O device error. Often a failing disk.
0xC000018AErrorSTATUS_NO_TRUST_LSA_SECRET
The SAM database on the server does not have a computer account for this workstation trust relationship.
0xC000018DErrorSTATUS_TRUSTED_RELATIONSHIP_FAILURE
The trust relationship between this workstation and the primary domain failed. Rejoin the domain.
Page 1 of 2
Next →