WinMgmt

Manage the WMI service/WMI repository.

Syntax
      WINMGMT [/backup filename] 
      WINMGMT [/restore filename restore-mode] 
      WINMGMT [/resyncperf winmgmt service-process-id] 
      WINMGMT [/standalonehost level]
      WINMGMT [/sharedhost]
      WINMGMT [/verifyrepository path]
      WINMGMT [/salvagerepository] 
      WINMGMT [/resetrepository]

Options:

   /backup filename
      Back up the repository to the specified file name.
      The filename argument should contain the full path to the file location.
      This process requires a write lock on the repository so that write operations to the repository are suspended
      until the backup process is completed.
      If you do not specify a path for the file, it is saved to the %Windir%\System32 directory.

   /restore filename restore-mode
      Manually restore the WMI repository from the specified backup file.
      The filename argument should contain the full path to the backup file location.
      To perform the restore operation, WMI saves the existing repository to write back if the operation fails.
      Then the repository is restored from the backup file that is specified in the filename argument.
      If exclusive access to the repository cannot be achieved, existing clients are disconnected from WMI.

      The restore_mode flag must be a 1 (force disconnect users and restore)
      or 0 (default restore if no users connected).

   /resyncperf winmgmt-service-process-id
      Register the computer's performance libraries with WMI. WMI PID is the process ID for the WMI service.
      Only needed if the performance monitor classes are not returning reliable results.

   /standalonehost [level]
      Move the Winmgmt service to a standalone Svchost process that has a fixed DCOM endpoint.
      The default endpoint is "ncacn_ip_tcp.0.24158". However, the endpoint may be changed by running Dcomcnfg.exe.
      For more information about setting up a fixed port for WMI, see Setting Up a Fixed Port for WMI.

      The level argument is the authentication level for the Svchost process. WMI normally runs as part of a shared service host and
      you cannot increase the authentication level for WMI alone.
      If level is not specified, the default is 4 (RPC_C_AUTHN_LEVEL_PKT or WbemAuthenticationLevelPkt).

      You can run WMI more securely by increasing the authentication level to Packet Privacy
      (RPC_C_AUTHN_LEVEL_PKT_PRIVACY or WbemAuthenticationLevelPktPrivacy).
      The authentication levels for Visual Basic and scripting are described in WbemAuthenticationLevelEnum.
      For C++, see Setting the Default Process Security Level Using C++. For more information, see Maintaining WMI Security.

   /sharedhost
      Move the Winmgmt service into the shared Svchost process.

   /verifyrepository path
      Performs a consistency check on the WMI repository.
      When you add the /verifyrepository switch without the path argument, then the live repository currently used by WMI is verified.
      When you specify the path argument, you can verify any saved copy of the repository.
      In this case, the path argument should contain the full path to the saved repository copy. The saved repository should be a copy of the
      entire repository folder. For more information about errors returned by this command, see the Remarks section.

   /salvagerepository
      Perform a consistency check on the WMI repository, and if an inconsistency is detected, rebuild the repository.
      The content of the inconsistent repository is merged into the rebuilt repository, if it can be read.
      The salvage operation always works with the repository that the WMI service is currently using.
      For more information about errors returned by this command, see the Remarks section.
      % MOF files that contain the #pragma autorecover preprocessor statement are restored to the repository.

   /resetrepository
      The repository is reset to the initial state when the operating system is first installed.
      MOF files that contain the #pragma autorecover preprocessor statement are restored to the repository.

   /?   Display Help.

Remarks

This tool is located in the %Windir%\System32\wbem directory.

The WMI repository, also known as the CIM repository, is not just a single file, but a collection of files within the Repository folder that work together as a database.

When you use the /backup switch to backup the repository, the resulting backup is a single compressed file.

WMI returns the error ERROR_INTERNAL_DB_CORRUPTION (net helpmsg 1358) if a verification operation indicates that the repository is not in a consistent state. This error can be returned from any command which performs repository verification, such as /verifyrepository or /salvagerepository.

If WMI returns error messages, be aware that they may not indicate problems in the WMI service or in WMI providers. Failures can originate in other parts of the operating system and emerge as errors through WMI.

Under any circumstances, do not delete the WMI repository as a first action because deleting the repository can cause damage to the system or to installed applications. For more information about the source of the problem, download and run the WMI Diagnosis Utility diagnostic command line tool (unsupported). This tool produces a report that can usually isolate the source of the problem and provide instructions on how to fix it. The report also aids Microsoft support services in assisting you.

Examples

Check/verify the repository:

WINMGMT /verifyrepository

Salvage the repository, after running this repeat the verify:

WINMGMT /salvagerepository

“Events, dear boy, events” ~ British Prime Minister Harold Macmillan (answer to 'what is the biggest problem in politics'?)

Related commands:

WMIC - WMI Commands.


 
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