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.).
134 codes
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.
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.
0xC0000192ErrorSTATUS_NETLOGON_NOT_STARTED
An attempt was made to logon but the Netlogon service was not started.
0xC004B100ErrorSL_E_CHPA_PRODUCT_KEY_BLOCKED
The product key is blocked. It may have been reported as stolen or misused.
0xC004C003ErrorSL_E_ACTIVATION_FAILED
Office activation failed. The activation server determined the specified product key is blocked.
0xC004C060ErrorSL_E_GRACE_TIME_EXPIRED
Office grace period has expired. Activation required immediately.
0xC004F017ErrorSL_E_PRODUCT_SKU_NOT_INSTALLED
The software license product SKU is not installed.
0xC004F074ErrorSL_E_ACTIVATION_FAILED_KMS
KMS activation failed. No KMS host could be found. Check DNS SRV records or KMS host availability.
0x00000001ErrorERROR_INVALID_FUNCTION
Incorrect function called or unknown function number.
0x00000002ErrorERROR_FILE_NOT_FOUND
The system cannot find the file specified.
0x00000003ErrorERROR_PATH_NOT_FOUND
The system cannot find the path specified.
0x00000004ErrorERROR_TOO_MANY_OPEN_FILES
The system cannot open the file. Too many open file handles.
0x00000005ErrorERROR_ACCESS_DENIED
Access is denied. Check permissions or run as administrator.
0x00000006ErrorERROR_INVALID_HANDLE
The handle is invalid. Often caused by a closed or corrupted handle.
0x00000008ErrorERROR_NOT_ENOUGH_MEMORY
Not enough storage is available to process this command.
0x0000000DErrorERROR_INVALID_DATA
The data is invalid.
0x0000000EErrorERROR_OUTOFMEMORY
Not enough storage is available to complete this operation.
0x0000000FErrorERROR_INVALID_DRIVE
The system cannot find the drive specified.
0x0000001FErrorERROR_GEN_FAILURE
A device attached to the system is not functioning.
0x00000027ErrorERROR_HANDLE_DISK_FULL
The disk is full.
0x00000032ErrorERROR_NOT_SUPPORTED
The request is not supported.
0x00000035ErrorERROR_BAD_NETPATH
The network path was not found. Check UNC path and network connectivity.
0x00000041ErrorERROR_NETWORK_ACCESS_DENIED
Network access is denied.
0x00000052ErrorERROR_CANNOT_MAKE
The directory or file cannot be created.
0x00000057ErrorERROR_INVALID_PARAMETER
The parameter is incorrect.
0x00000070ErrorERROR_DISK_FULL
There is not enough space on the disk.
0x0000007BErrorERROR_INVALID_NAME
The filename, directory name, or volume label syntax is incorrect.