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Set-WmiInstance

Updated: April 21, 2010

Applies To: Windows PowerShell 2.0

Creates or updates an instance of an existing Windows Management Instrumentation (WMI) class.

Syntax

Set-WmiInstance [-Class] <string> [[-Arguments] <hashtable>] [-Authentication {<Default> | <None> | <Connect> | <Call> | <Packet> | <PacketIntegrity> | <PacketPrivacy> | <Unchanged>}] [-Authority <string>] [-ComputerName <string[]>] [-Credential <PSCredential>] [-EnableAllPrivileges] [-Impersonation {<Default> | <Anonymous> | <Identify> | <Impersonate> | <Delegate>}] [-Locale <string>] [-Namespace <string>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Set-WmiInstance [-Authentication {<Default> | <None> | <Connect> | <Call> | <Packet> | <PacketIntegrity> | <PacketPrivacy> | <Unchanged>}] [-Authority <string>] [-ComputerName <string[]>] [-Credential <PSCredential>] [-EnableAllPrivileges] [-Impersonation {<Default> | <Anonymous> | <Identify> | <Impersonate> | <Delegate>}] [-Locale <string>] [-Namespace <string>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Set-WmiInstance -InputObject <ManagementObject> [-Arguments <hashtable>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Set-WmiInstance -Path <string> [-Arguments <hashtable>] [-Authentication {<Default> | <None> | <Connect> | <Call> | <Packet> | <PacketIntegrity> | <PacketPrivacy> | <Unchanged>}] [-Authority <string>] [-ComputerName <string[]>] [-Credential <PSCredential>] [-EnableAllPrivileges] [-Impersonation {<Default> | <Anonymous> | <Identify> | <Impersonate> | <Delegate>}] [-Locale <string>] [-Namespace <string>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Set-WmiInstance [-Authentication {<Default> | <None> | <Connect> | <Call> | <Packet> | <PacketIntegrity> | <PacketPrivacy> | <Unchanged>}] [-Authority <string>] [-ComputerName <string[]>] [-Credential <PSCredential>] [-EnableAllPrivileges] [-Impersonation {<Default> | <Anonymous> | <Identify> | <Impersonate> | <Delegate>}] [-Locale <string>] [-Namespace <string>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Set-WmiInstance [-Authentication {<Default> | <None> | <Connect> | <Call> | <Packet> | <PacketIntegrity> | <PacketPrivacy> | <Unchanged>}] [-Authority <string>] [-ComputerName <string[]>] [-Credential <PSCredential>] [-EnableAllPrivileges] [-Impersonation {<Default> | <Anonymous> | <Identify> | <Impersonate> | <Delegate>}] [-Locale <string>] [-Namespace <string>] [-AsJob] [-PutType {<None> | <UpdateOnly> | <CreateOnly> | <UpdateOrCreate>}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

Description

The Set-WmiInstance cmdlet creates or updates an instance of an existing WMI class. The created or updated instance is written to the WMI repository.

Parameters

-Arguments <hashtable>

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"}.

 

Required?

false

Position?

2

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-AsJob

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.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Authentication <AuthenticationLevel>

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.)

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Authority <string>

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.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Class <string>

Specifies the name of a WMI class.

 

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ComputerName <string[]>

Specifies the computer against which you want to run the management operation. The value can be a fully qualified domain name, a NetBIOS name, or an IP address. Use the local computer name, use localhost, or use a dot (.) to specify the local computer. The local computer is the default. When the remote computer is in a different domain from the user, you must use a fully qualified domain name.

This parameter does not rely on Windows PowerShell remoting, which uses WS-Management. You can use the ComputerName parameter of Set-WmiInstance even if your computer is not configured to run WS-Management remote commands.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Credential <PSCredential>

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.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-EnableAllPrivileges

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

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Impersonation <ImpersonationLevel>

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.)

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-InputObject <ManagementObject>

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

 

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

true (ByValue)

Accept Wildcard Characters?

false

-Locale <string>

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

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Namespace <string>

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

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Path <string>

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

 

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-PutType <PutType>

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.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ThrottleLimit <int>

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.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Confirm

Prompts you for confirmation before executing the command.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-WhatIf

Describes what would happen if you executed the command without actually executing the command.

 

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This command supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, OutBuffer, OutVariable, WarningAction, and WarningVariable. For more information, see about_CommonParameters.

Inputs and Outputs

The input type is the type of the objects that you can pipe to the cmdlet. The return type is the type of the objects that the cmdlet returns.

 

Inputs

None

This cmdlet does not accept input.

Outputs

None

This cmdlet does not generate output.

Example 1

C:\PS>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\cimv2
ASPScriptEnabled               : False
AutorecoverMofs                : {%windir%\system32\wbem\cimwin32.mof, %windir%\system32\wbem\ncprov.mof, %windir%\syst
                                 em32\wbem\wmipcima.mof, %windir%\system32\wbem\secrcw32.mof...}
AutoStartWin9X                 :
BackupInterval                 :
BackupLastTime                 :
BuildVersion                   : 6001.18000
Caption                        :
DatabaseDirectory              : C:\Windows\system32\wbem\repository
DatabaseMaxSize                :
Description                    :
EnableAnonWin9xConnections     :
EnableEvents                   : False
EnableStartupHeapPreallocation : False
HighThresholdOnClientObjects   :
HighThresholdOnEvents          : 20000000
InstallationDirectory          : C:\Windows\system32\wbem
LastStartupHeapPreallocation   :
LoggingDirectory               : C:\Windows\system32\wbem\Logs\
LoggingLevel                   : 2
LowThresholdOnClientObjects    :
LowThresholdOnEvents           : 10000000
MaxLogFileSize                 : 65536
MaxWaitOnClientObjects         :
MaxWaitOnEvents                : 2000
MofSelfInstallDirectory        :
SettingID                      :

Description

-----------

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.

Example 2

C:\PS>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>\testvar
Description      : <SYSTEM>\testvar
InstallDate      :
Name             : testvar
Status           : OK
SystemVariable   : True
UserName         : <SYSTEM>
VariableValue    : testvalue

Description

-----------

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.

Example 3

C:\PS>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\cimv2
ASPScriptEnabled               : False
AutorecoverMofs                : {%windir%\system32\wbem\cimwin32.mof, %windir%\system32\wbem\ncprov.mof, %windir%\syst
                                 em32\wbem\wmipcima.mof, %windir%\system32\wbem\secrcw32.mof...}
AutoStartWin9X                 :
BackupInterval                 :
BackupLastTime                 :
BuildVersion                   : 6001.18000
Caption                        :
DatabaseDirectory              : C:\Windows\system32\wbem\repository
DatabaseMaxSize                :
Description                    :
EnableAnonWin9xConnections     :
EnableEvents                   : False
EnableStartupHeapPreallocation : False
HighThresholdOnClientObjects   :
HighThresholdOnEvents          : 20000000
InstallationDirectory          : C:\Windows\system32\wbem
LastStartupHeapPreallocation   :
LoggingDirectory               : C:\Windows\system32\wbem\Logs\
LoggingLevel                   : 2
LowThresholdOnClientObjects    :
LowThresholdOnEvents           : 10000000
MaxLogFileSize                 : 65536
MaxWaitOnClientObjects         :
MaxWaitOnEvents                : 2000
MofSelfInstallDirectory        :
SettingID                      :

...

Description

-----------

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.

See Also

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