Set-WmiInstance

Specifies the name of the property to be changed and the new value for that property. The name and value must be in a name-value pair. The name-value pair is passed on the command-line as a hash table. For example:

-argument @{Setting1=1; Setting2=5; Setting3="test"}.

Runs the command as a background job. Use this parameter to run commands that take a long time to finish.

When you use the AsJob parameter, the command returns an object that represents the background job and then displays the command prompt. You can continue to work in the session while the job finishes. If Set-WmiObject is used against a remote computer, the job is created on the local computer, and the results from remote computers are automatically returned to the local computer. To manage the job, use the cmdlets that contain the Job noun (the Job cmdlets). To get the job results, use the Receive-Job cmdlet.

Note: To use this parameter with remote computers, the local and remote computers must be configured for remoting. Additionally, you must start Windows PowerShell by using the "Run as administrator" option in Windows Vista and later versions of Windows,. For more information, see about_Remote_Requirements.

For more information about Windows PowerShell background jobs, see about_Jobs and about_Remote_Jobs.

Specifies the authentication level to be used with the WMI connection. Valid values are:

-1: Unchanged

0: Default

1: None (No authentication in performed.)

2: Connect (Authentication is performed only when the client establishes a relationship with the application.)

3: Call (Authentication is performed only at the beginning of each call when the application receives the request.)

4: Packet (Authentication is performed on all the data that is received from the client.)

5: PacketIntegrity (All the data that is transferred between the client and the application is authenticated and verified.)

6: PacketPrivacy (The properties of the other authentication levels are used, and all the data is encrypted.)

Specifies the authority to use to authenticate the WMI connection. You can specify standard NTLM or Kerberos authentication. To use NTLM, set the authority setting to ntlmdomain:<DomainName>, where <DomainName> identifies a valid NTLM domain name. To use Kerberos, specify kerberos:<DomainName>\<ServerName>". You cannot include the authority setting when you connect to the local computer.

Specifies the name of a WMI class.

Runs the command on the specified computers. The default is the local computer.

Type the NetBIOS name, an IP address, or a fully qualified domain name of one or more computers. To specify the local computer, type the computer name, a dot (.), or "localhost".

This parameter does not rely on Windows PowerShell remoting. You can use the ComputerName parameter even if your computer is not configured to run remote commands.

Specifies a user account that has permission to perform this action. The default is the current user. Type a user name, such as "User01", "Domain01\User01", or User@Contoso.com. Or, enter a PSCredential object, such as an object that is returned by the Get-Credential cmdlet. When you type a user name, you will be prompted for a password.

Enables all the privileges of the current user before the command makes the WMI call .

Specifies the impersonation level to use. Valid values are:

0: Default (Reads the local registry for the default impersonation level, which is usually set to "3: Impersonate".)

1: Anonymous (Hides the credentials of the caller.)

2: Identify (Allows objects to query the credentials of the caller.)

3: Impersonate (Allows objects to use the credentials of the caller.)

4: Delegate (Allows objects to permit other objects to use the credentials of the caller.)

Specifies a ManagementObject object to use as input. When this parameter is used, all other parameters ,except the Arguments parameter, are ignored.

Specifies the preferred locale for WMI objects. The Locale parameter is specified in an array in the MS_<LCID> format in the preferred order.

When used with the Class parameter, this parameter specifies the WMI repository namespace where the referenced WMI class is located.

Specifies a WMI object path to the instance that you want to create or update.

Indicates whether the WMI instance should be created or updated. Valid values are:

UpdateOnly: Updates an existing WMI instance.

CreateOnly: Creates a new WMI instance.

UpdateOrCreate: Updates the WMI instance if it exists or creates a new instance if an instance does not exist.

Allows the user to specify a throttling value for the number of WMI operations that can be executed simultaneously. This parameter is used together with the AsJob parameter. The throttle limit applies only to the current command, not to the session or to the computer.

Prompts you for confirmation before running the cmdlet.

Shows what would happen if the cmdlet runs. The cmdlet is not run.

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see  about_CommonParameters (http://go.microsoft.com/fwlink/p/?LinkID=113216).

This command sets the WMI logging level to 2. The command passes the property to be set and the value (together considered a value pair) in the argument parameter. The parameter takes a hash table that is defined by the @{property = value} construction. Theclass information that is returned reflects the new value.

PS C:\> Set-WMIInstance -class Win32_WMISetting -argument @{LoggingLevel=2}__GENUS                        : 2__CLASS                        : Win32_WMISetting__SUPERCLASS                   : CIM_Setting__DYNASTY                      : CIM_Setting__RELPATH                      : Win32_WMISetting=@__PROPERTY_COUNT               : 27__DERIVATION                   : {CIM_Setting}__SERVER                       : SYSTEM01__NAMESPACE                    : root\cimv2__PATH                         : \\SYSTEM01\root\cimv2:Win32_WMISetting=@ASPScriptDefaultNamespace      : \\root\cimv2ASPScriptEnabled               : FalseAutorecoverMofs                : {%windir%\system32\wbem\cimwin32.mof, %windir%\system32\wbem\ncprov.mof, %windir%\system32\wbem\wmipcima.mof, %windir%\system32\wbem\secrcw32.mof...}AutoStartWin9X                 :BackupInterval                 :BackupLastTime                 :BuildVersion                   : 6001.18000Caption                        :DatabaseDirectory              : C:\Windows\system32\wbem\repositoryDatabaseMaxSize                :Description                    :EnableAnonWin9xConnections     :EnableEvents                   : FalseEnableStartupHeapPreallocation : FalseHighThresholdOnClientObjects   :HighThresholdOnEvents          : 20000000InstallationDirectory          : C:\Windows\system32\wbemLastStartupHeapPreallocation   :LoggingDirectory               : C:\Windows\system32\wbem\Logs\LoggingLevel                   : 2LowThresholdOnClientObjects    :LowThresholdOnEvents           : 10000000MaxLogFileSize                 : 65536MaxWaitOnClientObjects         :MaxWaitOnEvents                : 2000MofSelfInstallDirectory        :SettingID                      :

This command creates the testvar environment variable that has the value "testvalue". It does this by creating a new instance of the Win32_Environment WMI class. Note that this operation requires appropriate credentials and that you may need to restart Windows PowerShell to see the new environment variable.

PS C:\> set-wmiinstance -class win32_environment -argument @{Name="testvar";VariableValue="testvalue";UserName="<SYSTEM>"}__GENUS          : 2__CLASS          : Win32_Environment__SUPERCLASS     : CIM_SystemResource__DYNASTY        : CIM_ManagedSystemElement__RELPATH        : Win32_Environment.Name="testvar",UserName="<SYSTEM>"__PROPERTY_COUNT : 8__DERIVATION     : {CIM_SystemResource, CIM_LogicalElement, CIM_ManagedSystemElement}__SERVER         : SYSTEM01__NAMESPACE      : root\cimv2__PATH           : \\SYSTEM01\root\cimv2:Win32_Environment.Name="testvar",UserName="<SYSTEM>"Caption          : <SYSTEM>\testvarDescription      : <SYSTEM>\testvarInstallDate      :Name             : testvarStatus           : OKSystemVariable   : TrueUserName         : <SYSTEM>VariableValue    : testvalue

This command sets the WMI logging level to 2. The command passes the property to be set and the value (together considered a value pair) in the argument parameter. The parameter takes a hash table that is defined by the @{property = value} construction. The returned class information reflects the new value.

PS C:\> Set-WMIInstance -class Win32_WMISetting -argument @{LoggingLevel=2} -computername system01, system02, system03__GENUS                        : 2__CLASS                        : Win32_WMISetting__SUPERCLASS                   : CIM_Setting__DYNASTY                      : CIM_Setting__RELPATH                      : Win32_WMISetting=@__PROPERTY_COUNT               : 27__DERIVATION                   : {CIM_Setting}__SERVER                       : SYSTEM01__NAMESPACE                    : root\cimv2__PATH                         : \\SYSTEM01\root\cimv2:Win32_WMISetting=@ASPScriptDefaultNamespace      : \\root\cimv2ASPScriptEnabled               : FalseAutorecoverMofs                : {%windir%\system32\wbem\cimwin32.mof, %windir%\system32\wbem\ncprov.mof, %windir%\system32\wbem\wmipcima.mof, %windir%\system32\wbem\secrcw32.mof...}AutoStartWin9X                 :BackupInterval                 :BackupLastTime                 :BuildVersion                   : 6001.18000Caption                        :DatabaseDirectory              : C:\Windows\system32\wbem\repositoryDatabaseMaxSize                :Description                    :EnableAnonWin9xConnections     :EnableEvents                   : FalseEnableStartupHeapPreallocation : FalseHighThresholdOnClientObjects   :HighThresholdOnEvents          : 20000000InstallationDirectory          : C:\Windows\system32\wbemLastStartupHeapPreallocation   :LoggingDirectory               : C:\Windows\system32\wbem\Logs\LoggingLevel                   : 2LowThresholdOnClientObjects    :LowThresholdOnEvents           : 10000000MaxLogFileSize                 : 65536MaxWaitOnClientObjects         :MaxWaitOnEvents                : 2000MofSelfInstallDirectory        :SettingID                      :...