About Genuine Windows

Support for Windows 7 ended on January 14, 2020

We recommend you move to a Windows 10 PC to continue to receive security updates from Microsoft.

Genuine versions of Windows are published by Microsoft, properly licensed, and supported by Microsoft or a trusted partner. You’ll need a genuine version of Windows to access the optional updates and downloads that help you get the most from your PC.

To learn how to activate Windows, see Activate Windows 7 or Windows 8.1. If you’re using Windows 10, see Activation in Windows 10.

Here are answers to some common questions about genuine Windows software.

Look for key features of genuine Windows software, such as the Certificate of Authenticity (COA), a proof of license label, and an edge-to-edge hologram. For more information, visit the What to look for page on the Microsoft How to Tell website. Your safest option is always to buy Windows from Microsoft, or to buy a PC with Windows preinstalled directly from Microsoft or a store you know and trust.

If you’re seeing these notifications, it’s likely that your copy of Windows wasn’t properly activated. Click the notification and follow the steps to repair Windows or buy a genuine version of Windows if you find out the software is counterfeit.

Until you correct the issue, you’ll receive periodic reminders that Windows is not genuine. Your desktop may also turn black to emphasize the messages. You can reset it, but it will return to black every 60 minutes until the issue is resolved.

Windows will always be able to get critical security updates, even if your version isn’t genuine. However, other updates and benefits are available exclusively for genuine Windows software.

Activation helps verify that your copy of Windows is used only on PCs that the Microsoft Software License Terms allow. It pairs your product key or digital entitlement with your hardware configuration. Usually, you only need to activate Windows once, unless you make a significant hardware change.

When your PC downloads updates, Windows checks to see if your product key or digital entitlement is valid. If it is, you’re eligible to receive the latest updates from Microsoft. If it’s not, your PC is running non-genuine Windows.

You can’t install Windows on more PCs than the Microsoft Software License Terms allow. Usually, a copy of Windows can only be installed on one PC. To learn more about licensing Windows on more than one PC, go to the Microsoft Volume Licensing website.

Yes. You’ll still be able to get critical security updates. However, many updates are exclusively for customers with genuine versions of Windows. We strongly recommend that you get genuine Microsoft software immediately to keep you safer while using your PC.

Validation is an online process. It verifies that your copy of Windows is genuine and that critical Windows licensing files haven’t been damaged, deleted, or removed. It takes only a few moments and lets Microsoft create a match between your PC’s hardware profile and your 25-character product key or digital entitlement.

Your copy of Windows may need to be validated before you can get downloads and the updates which are reserved for PCs that are running genuine Windows. Windows might also prompt you to run genuine validation if activation isn’t properly completed.

If your copy of Windows fails validation, you’ll see a results page that tells you why it isn’t genuine. You’ll also see info about how to resolve the issue.

There are a few common scenarios in which Windows running on a PC might be discovered to be non-genuine during validation.

Repairs. If your PC has been repaired, you might start to see messages on your desktop that Windows isn’t genuine. If the repairs required Windows to be reinstalled, the technician may have activated Windows with a different key than you used when it was originally installed. You might not see the messages until you try to download something from the Microsoft Download Center that requires validation, and validation fails. To fix the issue, you can properly activate Windows by reentering your original product key.

For other issues, you may need to buy a genuine version of Windows.

1 License = 1 PC. Another common cause of Windows validation failure happens when you try to install Windows on more PCs than your license allows. For instance, if you purchased a copy of Windows and installed it on more than one PC, online validation might fail because the product key has already been used on another PC. The rule for most copies of Windows is that only one copy of Windows can be installed on one PC. To learn about licensing more than one PC, go to the Microsoft Volume Licensing website.

Counterfeit software. Validation will also fail if you’ve inadvertently acquired and installed counterfeit Windows software. The Microsoft How to Tell website can help you identify counterfeit software and file a counterfeit software report if needed. Validation failure is common for versions of Windows that were purchased from an online auction site, or if Windows was on a used PC that you purchased. Remember to ask the seller for the Certificate of Authenticity and the original Windows disc, if there was one.

To file a counterfeit report, go to the Microsoft How to Tell website.

You can file an online report if you inadvertently bought or received counterfeit software, or have information about a person, business, or online site that might be selling counterfeit software. The report you submit will be treated as confidential. Microsoft devotes substantial time and energy to fighting software counterfeiting, and you can be assured that we will take appropriate action in response to your report.

If you got an error when you were activating Windows, you can find what it means. For details, go to Get help with activation errors.

You’ll need a product key when you install Windows. To learn more, go to Find a product key.

System Error Codes

This section is intended for developers who are debugging system errors. If you reached this page while searching for other errors, here are some links that might help:

• Windows Update errors — For help resolving issues with Windows Update.
• Windows activation errors — For help verifying your copy of Windows.
• Troubleshooting blue screen errors — For help discovering what caused a stop error.
• Microsoft Support — For support with a Microsoft product.

More ways to find an error code

We’ve listed the system error codes in this section, organized by number. If you need more help tracking down a specific error, here are some more recommendations:

• Use the Microsoft Error Lookup Tool.
• Install the Debugging Tools for Windows, load a memory dump file, and then run the !err command.
• Search the Microsoft Protocols site for the raw text or error code. For more information, see [MS-ERREF]: Windows Error Codes.

Third party error codes

Other error codes may be generated by third party services or apps (for example, Error Code: -118 may be displayed by the Steam game service) and in those situations you would contact the third party’s support line.

System Error Codes

System Error Codes are very broad: each one can occur in one of many hundreds of locations in the system. Consequently, the descriptions of these codes cannot be very specific. Use of these codes requires some amount of investigation and analysis. You need to note both the programmatic and the runtime context in which these errors occur.

Because these codes are defined in WinError.h for anyone to use, sometimes the codes are returned by non-system software. And sometimes the code is returned by a function deep in the stack and far removed from code that is handling the error.

The following topics provide lists of system error codes. These values are defined in the WinError.h header file.

Обновление Windows 10 KB5001330 приносит очередные проблемы, включая BSOD

В некоторых конфигурациях Windows 10 возникают серьезные проблемы из-за недавнего обновления под номером KB5001330. Пользователи сообщают о проблемах с установкой, проблемах с производительностью, временной ошибке профиля пользователя и предупреждении о сбое системы.

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На этой неделе во вторник Microsoft выпустила новые накопительные обновления за апрель 2021 года для поддерживаемых версий ОС. Для версии 20H2/2004 Microsoft выпустила Windows 10 KB5001330, обязательное обновление безопасности, направленное на устранение ряда уязвимостей и проблем, вызванных предыдущим обновлением, включая проблемы с принтерами.

Согласно многочисленным сообщениям на сайтах социальных сетей, растет число пользователей, которые не могут установить последнее обновление Windows на свое оборудование. При попытке это сделать появляются ошибки: 0x800f081f, 0x800f0984.

Об ошибках при загрузке обновления KB5001330 сообщили многие пользователи в Центре отзывов.

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«Я получаю постоянный сбой при установке KP5001330 с кодом ошибки 0x800f0984. Это происходит на Surface Studio 2 и Pro 7. Второй месяц подряд нельзя установить накопительное обновление на моих устройствах. Установка приостанавливается на 20%, затем снова на 73%, потом на 100%, затем происходит сбой», — отметил один из пользователей.

В редких случаях также может повторяться известная ошибка временного профиля пользователя. Последний раз об этой ошибке сообщалось в декабре, она создает новый профиль пользователя при загрузке операционной системы после применения накопительного обновления. В этом случае пользовательские файлы и настройки (например, обои) могут исчезнуть.

«После обновления я больше не могу войти в свой компьютер. В нем говорится, что службе профилей пользователей не удалось войти в систему. Профиль пользователя не может быть загружен», — пожаловался один пользователь.

«После обновления Windows предлагает войти в гостевой профиль», — другой пользователь подтвердил проблему.

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К счастью, есть обходной путь для решения указанной проблемы. Необходимо либо откатить обновление, либо вручную переместить пользовательские файлы.

Кроме того, пользователи сообщают о сбоях в играх: графических артефактах и значительном падении частоты кадров, но проблему можно решить, удалив накопительное обновление вручную. Лишь некоторые пользователи сообщают об этих проблемах на форумах, и, похоже, они не так распространены, как другие ошибки.

Также многие сталкиваются с периодическими появлениями BSOD (синего экрана смерти)/

«Это обновление сломало Windows для меня и других. BSOD при обновлении сообщал, что определенного драйвера больше нет или он не поддерживается. Я восстановил Windows и обновился снова, затем BSOD на моем ПК повторился дважды за несколько часов. Я удалил обновление. Это случилось не только со мной, поэтому я бы посоветовал не устанавливать это обновление», — сообщил один из пользователей.

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Если вы загрузили обновление April 2021 Patch Tuesday и столкнулись с какими-либо проблемами, лучший способ решить проблему — это удалить исправление, выполнив следующие действия:

1. Откройте приложение «Настройки»;

2. Нажмите «Обновление и безопасность»;

3. Нажмите «Центр обновления Windows»;

4. Нажмите «Просмотреть историю обновлений»;

5. Нажмите «Удалить обновления», затем выберите KB5001330, чтобы удалить его;

6. Перезагрузите компьютер.

На данный момент компания Microsoft никак не прокоментировала многочисленные жалобы пользователей.

System Error Codes (1300-1699)

This information is intended for developers debugging system errors. For other errors, such as issues with Windows Update, there is a list of resources on the Error codes page.

The following list describes system error codes for errors 1300 to 1699. They are returned by the GetLastError function when many functions fail. To retrieve the description text for the error in your application, use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag.

ERROR_NOT_ALL_ASSIGNED

Not all privileges or groups referenced are assigned to the caller.

ERROR_SOME_NOT_MAPPED

Some mapping between account names and security IDs was not done.

ERROR_NO_QUOTAS_FOR_ACCOUNT

No system quota limits are specifically set for this account.

ERROR_LOCAL_USER_SESSION_KEY

No encryption key is available. A well-known encryption key was returned.

ERROR_NULL_LM_PASSWORD

The password is too complex to be converted to a LAN Manager password. The LAN Manager password returned is a NULL string.

ERROR_UNKNOWN_REVISION

The revision level is unknown.

ERROR_REVISION_MISMATCH

Indicates two revision levels are incompatible.

ERROR_INVALID_OWNER

This security ID may not be assigned as the owner of this object.

ERROR_INVALID_PRIMARY_GROUP

This security ID may not be assigned as the primary group of an object.

ERROR_NO_IMPERSONATION_TOKEN

An attempt has been made to operate on an impersonation token by a thread that is not currently impersonating a client.

ERROR_CANT_DISABLE_MANDATORY

The group may not be disabled.

ERROR_NO_LOGON_SERVERS

There are currently no logon servers available to service the logon request.

ERROR_NO_SUCH_LOGON_SESSION

A specified logon session does not exist. It may already have been terminated.

ERROR_NO_SUCH_PRIVILEGE

A specified privilege does not exist.

ERROR_PRIVILEGE_NOT_HELD

A required privilege is not held by the client.

ERROR_INVALID_ACCOUNT_NAME

The name provided is not a properly formed account name.

ERROR_USER_EXISTS

The specified account already exists.

ERROR_NO_SUCH_USER

The specified account does not exist.

ERROR_GROUP_EXISTS

The specified group already exists.

ERROR_NO_SUCH_GROUP

The specified group does not exist.

ERROR_MEMBER_IN_GROUP

Either the specified user account is already a member of the specified group, or the specified group cannot be deleted because it contains a member.

ERROR_MEMBER_NOT_IN_GROUP

The specified user account is not a member of the specified group account.

ERROR_LAST_ADMIN

This operation is disallowed as it could result in an administration account being disabled, deleted or unable to log on.

ERROR_WRONG_PASSWORD

Unable to update the password. The value provided as the current password is incorrect.

ERROR_ILL_FORMED_PASSWORD

Unable to update the password. The value provided for the new password contains values that are not allowed in passwords.

ERROR_PASSWORD_RESTRICTION

Unable to update the password. The value provided for the new password does not meet the length, complexity, or history requirements of the domain.

ERROR_LOGON_FAILURE

The user name or password is incorrect.

ERROR_ACCOUNT_RESTRICTION

Account restrictions are preventing this user from signing in. For example: blank passwords aren’t allowed, sign-in times are limited, or a policy restriction has been enforced.

ERROR_INVALID_LOGON_HOURS

Your account has time restrictions that keep you from signing in right now.

ERROR_INVALID_WORKSTATION

This user isn’t allowed to sign in to this computer.

ERROR_PASSWORD_EXPIRED

The password for this account has expired.

ERROR_ACCOUNT_DISABLED

This user can’t sign in because this account is currently disabled.

ERROR_NONE_MAPPED

No mapping between account names and security IDs was done.

ERROR_TOO_MANY_LUIDS_REQUESTED

Too many local user identifiers (LUIDs) were requested at one time.

ERROR_LUIDS_EXHAUSTED

No more local user identifiers (LUIDs) are available.

ERROR_INVALID_SUB_AUTHORITY

The subauthority part of a security ID is invalid for this particular use.

ERROR_INVALID_ACL

The access control list (ACL) structure is invalid.

ERROR_INVALID_SID

The security ID structure is invalid.

ERROR_INVALID_SECURITY_DESCR

The security descriptor structure is invalid.

ERROR_BAD_INHERITANCE_ACL

The inherited access control list (ACL) or access control entry (ACE) could not be built.

ERROR_SERVER_DISABLED

The server is currently disabled.

ERROR_SERVER_NOT_DISABLED

The server is currently enabled.

ERROR_INVALID_ID_AUTHORITY

The value provided was an invalid value for an identifier authority.

ERROR_ALLOTTED_SPACE_EXCEEDED

No more memory is available for security information updates.

ERROR_INVALID_GROUP_ATTRIBUTES

The specified attributes are invalid, or incompatible with the attributes for the group as a whole.

ERROR_BAD_IMPERSONATION_LEVEL

Either a required impersonation level was not provided, or the provided impersonation level is invalid.

ERROR_CANT_OPEN_ANONYMOUS

Cannot open an anonymous level security token.

ERROR_BAD_VALIDATION_CLASS

The validation information class requested was invalid.

ERROR_BAD_TOKEN_TYPE

The type of the token is inappropriate for its attempted use.

ERROR_NO_SECURITY_ON_OBJECT

Unable to perform a security operation on an object that has no associated security.

ERROR_CANT_ACCESS_DOMAIN_INFO

Configuration information could not be read from the domain controller, either because the machine is unavailable, or access has been denied.

ERROR_INVALID_SERVER_STATE

The security account manager (SAM) or local security authority (LSA) server was in the wrong state to perform the security operation.

ERROR_INVALID_DOMAIN_STATE

The domain was in the wrong state to perform the security operation.

ERROR_INVALID_DOMAIN_ROLE

This operation is only allowed for the Primary Domain Controller of the domain.

ERROR_NO_SUCH_DOMAIN

The specified domain either does not exist or could not be contacted.

ERROR_DOMAIN_EXISTS

The specified domain already exists.

ERROR_DOMAIN_LIMIT_EXCEEDED

An attempt was made to exceed the limit on the number of domains per server.

ERROR_INTERNAL_DB_CORRUPTION

Unable to complete the requested operation because of either a catastrophic media failure or a data structure corruption on the disk.

ERROR_INTERNAL_ERROR

An internal error occurred.

ERROR_GENERIC_NOT_MAPPED

Generic access types were contained in an access mask which should already be mapped to nongeneric types.

ERROR_BAD_DESCRIPTOR_FORMAT

A security descriptor is not in the right format (absolute or self-relative).

ERROR_NOT_LOGON_PROCESS

The requested action is restricted for use by logon processes only. The calling process has not registered as a logon process.

ERROR_LOGON_SESSION_EXISTS

Cannot start a new logon session with an ID that is already in use.

ERROR_NO_SUCH_PACKAGE

A specified authentication package is unknown.

ERROR_BAD_LOGON_SESSION_STATE

The logon session is not in a state that is consistent with the requested operation.

ERROR_LOGON_SESSION_COLLISION

The logon session ID is already in use.

ERROR_INVALID_LOGON_TYPE

A logon request contained an invalid logon type value.

ERROR_CANNOT_IMPERSONATE

Unable to impersonate using a named pipe until data has been read from that pipe.

ERROR_RXACT_INVALID_STATE

The transaction state of a registry subtree is incompatible with the requested operation.

ERROR_RXACT_COMMIT_FAILURE

An internal security database corruption has been encountered.

ERROR_SPECIAL_ACCOUNT

Cannot perform this operation on built-in accounts.

ERROR_SPECIAL_GROUP

Cannot perform this operation on this built-in special group.

ERROR_SPECIAL_USER

Cannot perform this operation on this built-in special user.

ERROR_MEMBERS_PRIMARY_GROUP

The user cannot be removed from a group because the group is currently the user’s primary group.

ERROR_TOKEN_ALREADY_IN_USE

The token is already in use as a primary token.

ERROR_NO_SUCH_ALIAS

The specified local group does not exist.

ERROR_MEMBER_NOT_IN_ALIAS

The specified account name is not a member of the group.

ERROR_MEMBER_IN_ALIAS

The specified account name is already a member of the group.

ERROR_ALIAS_EXISTS

The specified local group already exists.

ERROR_LOGON_NOT_GRANTED

Logon failure: the user has not been granted the requested logon type at this computer.

ERROR_TOO_MANY_SECRETS

The maximum number of secrets that may be stored in a single system has been exceeded.

ERROR_SECRET_TOO_LONG

The length of a secret exceeds the maximum length allowed.

ERROR_INTERNAL_DB_ERROR

The local security authority database contains an internal inconsistency.

ERROR_TOO_MANY_CONTEXT_IDS

During a logon attempt, the user’s security context accumulated too many security IDs.

ERROR_LOGON_TYPE_NOT_GRANTED

Logon failure: the user has not been granted the requested logon type at this computer.

ERROR_NT_CROSS_ENCRYPTION_REQUIRED

A cross-encrypted password is necessary to change a user password.

ERROR_NO_SUCH_MEMBER

A member could not be added to or removed from the local group because the member does not exist.

ERROR_INVALID_MEMBER

A new member could not be added to a local group because the member has the wrong account type.

ERROR_TOO_MANY_SIDS

Too many security IDs have been specified.

ERROR_LM_CROSS_ENCRYPTION_REQUIRED

A cross-encrypted password is necessary to change this user password.

ERROR_NO_INHERITANCE

Indicates an ACL contains no inheritable components.

ERROR_FILE_CORRUPT

The file or directory is corrupted and unreadable.

ERROR_DISK_CORRUPT

The disk structure is corrupted and unreadable.

ERROR_NO_USER_SESSION_KEY

There is no user session key for the specified logon session.

ERROR_LICENSE_QUOTA_EXCEEDED

The service being accessed is licensed for a particular number of connections. No more connections can be made to the service at this time because there are already as many connections as the service can accept.

ERROR_WRONG_TARGET_NAME

The target account name is incorrect.

ERROR_MUTUAL_AUTH_FAILED

Mutual Authentication failed. The server’s password is out of date at the domain controller.

ERROR_TIME_SKEW

There is a time and/or date difference between the client and server.

ERROR_CURRENT_DOMAIN_NOT_ALLOWED

This operation cannot be performed on the current domain.

ERROR_INVALID_WINDOW_HANDLE

Invalid window handle.

ERROR_INVALID_MENU_HANDLE

Invalid menu handle.

ERROR_INVALID_CURSOR_HANDLE

Invalid cursor handle.

ERROR_INVALID_ACCEL_HANDLE

Invalid accelerator table handle.

ERROR_INVALID_HOOK_HANDLE

Invalid hook handle.

ERROR_INVALID_DWP_HANDLE

Invalid handle to a multiple-window position structure.

ERROR_TLW_WITH_WSCHILD

Cannot create a top-level child window.

ERROR_CANNOT_FIND_WND_CLASS

Cannot find window class.

ERROR_WINDOW_OF_OTHER_THREAD

Invalid window; it belongs to other thread.

ERROR_HOTKEY_ALREADY_REGISTERED

Hot key is already registered.

ERROR_CLASS_ALREADY_EXISTS

Class already exists.

ERROR_CLASS_DOES_NOT_EXIST

Class does not exist.

ERROR_CLASS_HAS_WINDOWS

Class still has open windows.

ERROR_INVALID_INDEX

ERROR_INVALID_ICON_HANDLE

Invalid icon handle.

ERROR_PRIVATE_DIALOG_INDEX

Using private DIALOG window words.

ERROR_LISTBOX_ID_NOT_FOUND

The list box identifier was not found.

ERROR_NO_WILDCARD_CHARACTERS

No wildcards were found.

ERROR_CLIPBOARD_NOT_OPEN

Thread does not have a clipboard open.

ERROR_HOTKEY_NOT_REGISTERED

Hot key is not registered.

ERROR_WINDOW_NOT_DIALOG

The window is not a valid dialog window.

ERROR_CONTROL_ID_NOT_FOUND

Control ID not found.

ERROR_INVALID_COMBOBOX_MESSAGE

Invalid message for a combo box because it does not have an edit control.

ERROR_WINDOW_NOT_COMBOBOX

The window is not a combo box.

ERROR_INVALID_EDIT_HEIGHT

Height must be less than 256.

ERROR_DC_NOT_FOUND

Invalid device context (DC) handle.

ERROR_INVALID_HOOK_FILTER

Invalid hook procedure type.

ERROR_INVALID_FILTER_PROC

Invalid hook procedure.

ERROR_HOOK_NEEDS_HMOD

Cannot set nonlocal hook without a module handle.

ERROR_GLOBAL_ONLY_HOOK

This hook procedure can only be set globally.

ERROR_JOURNAL_HOOK_SET

The journal hook procedure is already installed.

ERROR_HOOK_NOT_INSTALLED

The hook procedure is not installed.

ERROR_INVALID_LB_MESSAGE

Invalid message for single-selection list box.

ERROR_SETCOUNT_ON_BAD_LB

LB_SETCOUNT sent to non-lazy list box.

ERROR_LB_WITHOUT_TABSTOPS

This list box does not support tab stops.

ERROR_DESTROY_OBJECT_OF_OTHER_THREAD

Cannot destroy object created by another thread.

ERROR_CHILD_WINDOW_MENU

Child windows cannot have menus.

ERROR_NO_SYSTEM_MENU

The window does not have a system menu.

ERROR_INVALID_MSGBOX_STYLE

Invalid message box style.

ERROR_INVALID_SPI_VALUE

Invalid system-wide (SPI_*) parameter.

ERROR_SCREEN_ALREADY_LOCKED

Screen already locked.

ERROR_HWNDS_HAVE_DIFF_PARENT

All handles to windows in a multiple-window position structure must have the same parent.

ERROR_NOT_CHILD_WINDOW

The window is not a child window.

ERROR_INVALID_GW_COMMAND

Invalid GW_* command.

ERROR_INVALID_THREAD_ID

Invalid thread identifier.

ERROR_NON_MDICHILD_WINDOW

Cannot process a message from a window that is not a multiple document interface (MDI) window.

ERROR_POPUP_ALREADY_ACTIVE

Popup menu already active.

ERROR_NO_SCROLLBARS

The window does not have scroll bars.

ERROR_INVALID_SCROLLBAR_RANGE

Scroll bar range cannot be greater than MAXLONG.

ERROR_INVALID_SHOWWIN_COMMAND

Cannot show or remove the window in the way specified.

ERROR_NO_SYSTEM_RESOURCES

Insufficient system resources exist to complete the requested service.

ERROR_NONPAGED_SYSTEM_RESOURCES

Insufficient system resources exist to complete the requested service.

ERROR_PAGED_SYSTEM_RESOURCES

Insufficient system resources exist to complete the requested service.

ERROR_WORKING_SET_QUOTA

Insufficient quota to complete the requested service.

ERROR_PAGEFILE_QUOTA

Insufficient quota to complete the requested service.

ERROR_COMMITMENT_LIMIT

The paging file is too small for this operation to complete.

ERROR_MENU_ITEM_NOT_FOUND

A menu item was not found.

ERROR_INVALID_KEYBOARD_HANDLE

Invalid keyboard layout handle.

ERROR_HOOK_TYPE_NOT_ALLOWED

Hook type not allowed.

ERROR_REQUIRES_INTERACTIVE_WINDOWSTATION

This operation requires an interactive window station.

ERROR_TIMEOUT

This operation returned because the timeout period expired.

ERROR_INVALID_MONITOR_HANDLE

Invalid monitor handle.

ERROR_INCORRECT_SIZE

Incorrect size argument.

ERROR_SYMLINK_CLASS_DISABLED

The symbolic link cannot be followed because its type is disabled.

ERROR_SYMLINK_NOT_SUPPORTED

This application does not support the current operation on symbolic links.

ERROR_XML_PARSE_ERROR

Windows was unable to parse the requested XML data.

ERROR_XMLDSIG_ERROR

An error was encountered while processing an XML digital signature.

ERROR_RESTART_APPLICATION

This application must be restarted.

ERROR_WRONG_COMPARTMENT

The caller made the connection request in the wrong routing compartment.

ERROR_AUTHIP_FAILURE

There was an AuthIP failure when attempting to connect to the remote host.

ERROR_NO_NVRAM_RESOURCES

Insufficient NVRAM resources exist to complete the requested service. A reboot might be required.

ERROR_NOT_GUI_PROCESS

Unable to finish the requested operation because the specified process is not a GUI process.

ERROR_EVENTLOG_FILE_CORRUPT

The event log file is corrupted.

ERROR_EVENTLOG_CANT_START

No event log file could be opened, so the event logging service did not start.

ERROR_LOG_FILE_FULL

The event log file is full.

ERROR_EVENTLOG_FILE_CHANGED

The event log file has changed between read operations.

ERROR_INVALID_TASK_NAME

The specified task name is invalid.

ERROR_INVALID_TASK_INDEX

The specified task index is invalid.

ERROR_THREAD_ALREADY_IN_TASK

The specified thread is already joining a task.

ERROR_INSTALL_SERVICE_FAILURE

The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.

ERROR_INSTALL_USEREXIT

User cancelled installation.

ERROR_INSTALL_FAILURE

Fatal error during installation.

ERROR_INSTALL_SUSPEND

Installation suspended, incomplete.

ERROR_UNKNOWN_PRODUCT

This action is only valid for products that are currently installed.

ERROR_UNKNOWN_FEATURE

Feature ID not registered.

ERROR_UNKNOWN_COMPONENT

Component ID not registered.

ERROR_UNKNOWN_PROPERTY

ERROR_INVALID_HANDLE_STATE

Handle is in an invalid state.

ERROR_BAD_CONFIGURATION

The configuration data for this product is corrupt. Contact your support personnel.

ERROR_INDEX_ABSENT

Component qualifier not present.

ERROR_INSTALL_SOURCE_ABSENT

The installation source for this product is not available. Verify that the source exists and that you can access it.

ERROR_INSTALL_PACKAGE_VERSION

This installation package cannot be installed by the Windows Installer service. You must install a Windows service pack that contains a newer version of the Windows Installer service.

ERROR_PRODUCT_UNINSTALLED

Product is uninstalled.

ERROR_BAD_QUERY_SYNTAX

SQL query syntax invalid or unsupported.

ERROR_INVALID_FIELD

Record field does not exist.

ERROR_DEVICE_REMOVED

The device has been removed.

ERROR_INSTALL_ALREADY_RUNNING

Another installation is already in progress. Complete that installation before proceeding with this install.

ERROR_INSTALL_PACKAGE_OPEN_FAILED

This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.

ERROR_INSTALL_PACKAGE_INVALID

This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package.

ERROR_INSTALL_UI_FAILURE

There was an error starting the Windows Installer service user interface. Contact your support personnel.

ERROR_INSTALL_LOG_FAILURE

Error opening installation log file. Verify that the specified log file location exists and that you can write to it.

ERROR_INSTALL_LANGUAGE_UNSUPPORTED

The language of this installation package is not supported by your system.

ERROR_INSTALL_TRANSFORM_FAILURE

Error applying transforms. Verify that the specified transform paths are valid.

ERROR_INSTALL_PACKAGE_REJECTED

This installation is forbidden by system policy. Contact your system administrator.

ERROR_FUNCTION_NOT_CALLED

Function could not be executed.

ERROR_FUNCTION_FAILED

Function failed during execution.

ERROR_INVALID_TABLE

Invalid or unknown table specified.

ERROR_DATATYPE_MISMATCH

Data supplied is of wrong type.

ERROR_UNSUPPORTED_TYPE

Data of this type is not supported.

ERROR_CREATE_FAILED

The Windows Installer service failed to start. Contact your support personnel.

ERROR_INSTALL_TEMP_UNWRITABLE

The Temp folder is on a drive that is full or is inaccessible. Free up space on the drive or verify that you have write permission on the Temp folder.

ERROR_INSTALL_PLATFORM_UNSUPPORTED

This installation package is not supported by this processor type. Contact your product vendor.

ERROR_INSTALL_NOTUSED

Component not used on this computer.

ERROR_PATCH_PACKAGE_OPEN_FAILED

This update package could not be opened. Verify that the update package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer update package.

ERROR_PATCH_PACKAGE_INVALID

This update package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer update package.

ERROR_PATCH_PACKAGE_UNSUPPORTED

This update package cannot be processed by the Windows Installer service. You must install a Windows service pack that contains a newer version of the Windows Installer service.

ERROR_PRODUCT_VERSION

Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.

ERROR_INVALID_COMMAND_LINE

Invalid command line argument. Consult the Windows Installer SDK for detailed command line help.

ERROR_INSTALL_REMOTE_DISALLOWED

Only administrators have permission to add, remove, or configure server software during a Terminal services remote session. If you want to install or configure software on the server, contact your network administrator.

ERROR_SUCCESS_REBOOT_INITIATED

The requested operation completed successfully. The system will be restarted so the changes can take effect.

ERROR_PATCH_TARGET_NOT_FOUND

The upgrade cannot be installed by the Windows Installer service because the program to be upgraded may be missing, or the upgrade may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade.

ERROR_PATCH_PACKAGE_REJECTED

The update package is not permitted by software restriction policy.

ERROR_INSTALL_TRANSFORM_REJECTED

One or more customizations are not permitted by software restriction policy.

ERROR_INSTALL_REMOTE_PROHIBITED

The Windows Installer does not permit installation from a Remote Desktop Connection.

ERROR_PATCH_REMOVAL_UNSUPPORTED

Uninstallation of the update package is not supported.

ERROR_UNKNOWN_PATCH

The update is not applied to this product.

ERROR_PATCH_NO_SEQUENCE

No valid sequence could be found for the set of updates.

ERROR_PATCH_REMOVAL_DISALLOWED

Update removal was disallowed by policy.

ERROR_INVALID_PATCH_XML

The XML update data is invalid.

ERROR_PATCH_MANAGED_ADVERTISED_PRODUCT

Windows Installer does not permit updating of managed advertised products. At least one feature of the product must be installed before applying the update.

ERROR_INSTALL_SERVICE_SAFEBOOT

The Windows Installer service is not accessible in Safe Mode. Please try again when your computer is not in Safe Mode or you can use System Restore to return your machine to a previous good state.

ERROR_FAIL_FAST_EXCEPTION

A fail fast exception occurred. Exception handlers will not be invoked and the process will be terminated immediately.

ERROR_INSTALL_REJECTED

The app that you are trying to run is not supported on this version of Windows.