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.).
38 codes
0x80004004WarningE_ABORT
Operation aborted.
0x80041032WarningWBEM_E_CALL_CANCELLED
WMI call was cancelled.
0x800700B7WarningERROR_ALREADY_EXISTS (WU)
Update file already exists. May indicate a partial previous download.
0x80070569WarningERROR_LOGON_TYPE_NOT_GRANTED
A user has been denied the requested logon type at this machine. Check local/GPO logon rights.
0x80070774WarningERROR_ACCOUNT_LOCKED_OUT
The referenced account is currently locked out and cannot be logged on to.
0x800706BBWarningRPC_S_SERVER_TOO_BUSY
The RPC server is too busy to complete this operation.
0x80072AFCWarningWSANO_DATA
The requested name is valid, but no data of the requested type was found.
0x80090317WarningSEC_E_TOKEN_TOO_LARGE
The security token exceeds the maximum allowed size. Too many group memberships — Kerberos token bloat.
0x8024000BWarningWU_E_CALL_CANCELLED
Operation was cancelled by Windows Update.
0x80240016WarningWU_E_INSTALL_NOT_ALLOWED
Operation tried to install while another installation was in progress.
0x80240020WarningWU_E_NO_INTERACTIVE_USER
No interactive user is logged on — update requires a user session.
0x80370028WarningVM_E_WRONG_VM_STATE
The operation is not valid for the current virtual machine state.
0x80310009WarningFVE_E_INVALID_PASSWORD_FORMAT
The BitLocker password does not meet complexity requirements.
0x8031000AWarningFVE_E_IN_REBOOT_PENDING
The drive encryption operation cannot be completed because a restart is required.
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.
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.
0xC0000101WarningSTATUS_DIRECTORY_NOT_EMPTY
The directory is not empty.
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.
0xC004F079WarningSL_E_ACTIVATION_THRESHOLD_NOT_MET
KMS activation count threshold not met. KMS requires minimum 5 clients (25 for Office).
0xC1900107WarningMOSETUP_E_CLEANUP_PENDING
A cleanup operation is still pending from a previous upgrade. Reboot and retry.
0x00000020WarningERROR_SHARING_VIOLATION
The process cannot access the file because it is being used by another process.
0x00000050WarningERROR_FILE_EXISTS
The file already exists.
0x000000B7WarningERROR_ALREADY_EXISTS
Cannot create a file when that file already exists.
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