Error Code Portal

Microsoft error codes

Search by code or error message to find official explanations and troubleshooting or diagnostic links.

4,836 codes·14 products·84 official documents

Search runs in your browser. The same number can have different meanings in different products.

Microsoft Code

3,837 results
CodeIssue and contextVendor and product
  • 12480x000004E0 · 0x4E0
    ERROR_NO_MORE_DEVICES

    No more local devices.

    MicrosoftWindows Win32
  • 12490x000004E1 · 0x4E1
    ERROR_NO_SUCH_SITE

    The specified site does not exist.

    MicrosoftWindows Win32
  • 12500x000004E2 · 0x4E2
    ERROR_DOMAIN_CONTROLLER_EXISTS

    A domain controller with the specified name already exists.

    MicrosoftWindows Win32
  • 12510x000004E3 · 0x4E3
    ERROR_ONLY_IF_CONNECTED

    This operation is supported only when you are connected to the server.

    MicrosoftWindows Win32
  • 12520x000004E4 · 0x4E4
    ERROR_OVERRIDE_NOCHANGES

    The group policy framework should call the extension even if there are no changes.

    MicrosoftWindows Win32
  • 12530x000004E5 · 0x4E5
    ERROR_BAD_USER_PROFILE

    The specified user does not have a valid profile.

    MicrosoftWindows Win32
  • 12540x000004E6 · 0x4E6
    ERROR_NOT_SUPPORTED_ON_SBS

    This operation is not supported on a computer running Windows Server 2003 for Small Business Server.

    MicrosoftWindows Win32
  • 12550x000004E7 · 0x4E7
    ERROR_SERVER_SHUTDOWN_IN_PROGRESS

    The server machine is shutting down.

    MicrosoftWindows Win32
  • 12560x000004E8 · 0x4E8
    ERROR_HOST_DOWN

    The remote system is not available. For information about network troubleshooting, see Windows Help.

    MicrosoftWindows Win32
  • 12570x000004E9 · 0x4E9
    ERROR_NON_ACCOUNT_SID

    The security identifier provided is not from an account domain.

    MicrosoftWindows Win32
  • 12580x000004EA · 0x4EA
    ERROR_NON_DOMAIN_SID

    The security identifier provided does not have a domain component.

    MicrosoftWindows Win32
  • 12590x000004EB · 0x4EB
    ERROR_APPHELP_BLOCK

    AppHelp dialog canceled thus preventing the application from starting.

    MicrosoftWindows Win32
  • 12600x000004EC · 0x4EC
    ERROR_ACCESS_DISABLED_BY_POLICY

    This program is blocked by group policy. For more information, contact your system administrator.

    MicrosoftWindows Win32
  • 12610x000004ED · 0x4ED
    ERROR_REG_NAT_CONSUMPTION

    A program attempt to use an invalid register value. Normally caused by an uninitialized register. This error is Itanium specific.

    MicrosoftWindows Win32
  • 12620x000004EE · 0x4EE
    ERROR_CSCSHARE_OFFLINE

    The share is currently offline or does not exist.

    MicrosoftWindows Win32
  • 12630x000004EF · 0x4EF
    ERROR_PKINIT_FAILURE

    The Kerberos protocol encountered an error while validating the KDC certificate during smartcard logon. There is more information in the system event log.

    MicrosoftWindows Win32
  • 12640x000004F0 · 0x4F0
    ERROR_SMARTCARD_SUBSYSTEM_FAILURE

    The Kerberos protocol encountered an error while attempting to utilize the smartcard subsystem.

    MicrosoftWindows Win32
  • 12650x000004F1 · 0x4F1
    ERROR_DOWNGRADE_DETECTED

    The system cannot contact a domain controller to service the authentication request. Please try again later.

    MicrosoftWindows Win32
  • 12710x000004F7 · 0x4F7
    ERROR_MACHINE_LOCKED

    The machine is locked and cannot be shut down without the force option.

    MicrosoftWindows Win32
  • 12730x000004F9 · 0x4F9
    ERROR_CALLBACK_SUPPLIED_INVALID_DATA

    An application-defined callback gave invalid data when called.

    MicrosoftWindows Win32
  • 12740x000004FA · 0x4FA
    ERROR_SYNC_FOREGROUND_REFRESH_REQUIRED

    The group policy framework should call the extension in the synchronous foreground policy refresh.

    MicrosoftWindows Win32
  • 12750x000004FB · 0x4FB
    ERROR_DRIVER_BLOCKED

    This driver has been blocked from loading.

    MicrosoftWindows Win32
  • 12760x000004FC · 0x4FC
    ERROR_INVALID_IMPORT_OF_NON_DLL

    A dynamic link library (DLL) referenced a module that was neither a DLL nor the process's executable image.

    MicrosoftWindows Win32
  • 12770x000004FD · 0x4FD
    ERROR_ACCESS_DISABLED_WEBBLADE

    Windows cannot open this program since it has been disabled.

    MicrosoftWindows Win32
  • 12780x000004FE · 0x4FE
    ERROR_ACCESS_DISABLED_WEBBLADE_TAMPER

    Windows cannot open this program because the license enforcement system has been tampered with or become corrupted.

    MicrosoftWindows Win32
  • 12790x000004FF · 0x4FF
    ERROR_RECOVERY_FAILURE

    A transaction recover failed.

    MicrosoftWindows Win32
  • 12800x00000500 · 0x500
    ERROR_ALREADY_FIBER

    The current thread has already been converted to a fiber.

    MicrosoftWindows Win32
  • 12810x00000501 · 0x501
    ERROR_ALREADY_THREAD

    The current thread has already been converted from a fiber.

    MicrosoftWindows Win32
  • 12820x00000502 · 0x502
    ERROR_STACK_BUFFER_OVERRUN

    The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application.

    MicrosoftWindows Win32
  • 12830x00000503 · 0x503
    ERROR_PARAMETER_QUOTA_EXCEEDED

    Data present in one of the parameters is more than the function can operate on.

    MicrosoftWindows Win32
  • 12840x00000504 · 0x504
    ERROR_DEBUGGER_INACTIVE

    An attempt to do an operation on a debug object failed because the object is in the process of being deleted.

    MicrosoftWindows Win32
  • 12850x00000505 · 0x505
    ERROR_DELAY_LOAD_FAILED

    An attempt to delay-load a .dll or get a function address in a delay-loaded .dll failed.

    MicrosoftWindows Win32
  • 12860x00000506 · 0x506
    ERROR_VDM_DISALLOWED

    %1 is a 16-bit application. You do not have permissions to execute 16-bit applications. Check your permissions with your system administrator.

    MicrosoftWindows Win32
  • 12870x00000507 · 0x507
    ERROR_UNIDENTIFIED_ERROR

    Insufficient information exists to identify the cause of failure.

    MicrosoftWindows Win32
  • 12880x00000508 · 0x508
    ERROR_INVALID_CRUNTIME_PARAMETER

    The parameter passed to a C runtime function is incorrect.

    MicrosoftWindows Win32
  • 12890x00000509 · 0x509
    ERROR_BEYOND_VDL

    The operation occurred beyond the valid data length of the file.

    MicrosoftWindows Win32
  • 12900x0000050A · 0x50A
    ERROR_INCOMPATIBLE_SERVICE_SID_TYPE

    The service start failed since one or more services in the same process have an incompatible service SID type setting. A service with restricted service SID type can only coexist in the same process with other services with a restricted SID type. If the service SID type for this service was just configured, the hosting process must be restarted in order to start this service. On Windows Server 2003 and Windows XP, an unrestricted service cannot coexist in the same process with other services. The service with the unrestricted service SID type must be moved to an owned process in order to start this service.

    MicrosoftWindows Win32
  • 12910x0000050B · 0x50B
    ERROR_DRIVER_PROCESS_TERMINATED

    The process hosting the driver for this device has been terminated.

    MicrosoftWindows Win32
  • 12920x0000050C · 0x50C
    ERROR_IMPLEMENTATION_LIMIT

    An operation attempted to exceed an implementation-defined limit.

    MicrosoftWindows Win32
  • 12930x0000050D · 0x50D
    ERROR_PROCESS_IS_PROTECTED

    Either the target process, or the target thread's containing process, is a protected process.

    MicrosoftWindows Win32

Codes by vendor