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Set-WmiInstance

  • Reference
Module:
Microsoft.PowerShell.Management

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

Syntax

Set-WmiInstance
   [-Class] <String>
   [-Arguments <Hashtable>]
   [-PutType <PutType>]
   [-AsJob]
   [-Impersonation <ImpersonationLevel>]
   [-Authentication <AuthenticationLevel>]
   [-Locale <String>]
   [-EnableAllPrivileges]
   [-Authority <String>]
   [-Credential <PSCredential>]
   [-ThrottleLimit <Int32>]
   [-ComputerName <String[]>]
   [-Namespace <String>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-WmiInstance
   -InputObject <ManagementObject>
   [-Arguments <Hashtable>]
   [-PutType <PutType>]
   [-AsJob]
   [-ThrottleLimit <Int32>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-WmiInstance
   -Path <String>
   [-Arguments <Hashtable>]
   [-PutType <PutType>]
   [-AsJob]
   [-Impersonation <ImpersonationLevel>]
   [-Authentication <AuthenticationLevel>]
   [-Locale <String>]
   [-EnableAllPrivileges]
   [-Authority <String>]
   [-Credential <PSCredential>]
   [-ThrottleLimit <Int32>]
   [-ComputerName <String[]>]
   [-Namespace <String>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-WmiInstance
   [-PutType <PutType>]
   [-AsJob]
   [-Impersonation <ImpersonationLevel>]
   [-Authentication <AuthenticationLevel>]
   [-Locale <String>]
   [-EnableAllPrivileges]
   [-Authority <String>]
   [-Credential <PSCredential>]
   [-ThrottleLimit <Int32>]
   [-ComputerName <String[]>]
   [-Namespace <String>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-WmiInstance
   [-PutType <PutType>]
   [-AsJob]
   [-Impersonation <ImpersonationLevel>]
   [-Authentication <AuthenticationLevel>]
   [-Locale <String>]
   [-EnableAllPrivileges]
   [-Authority <String>]
   [-Credential <PSCredential>]
   [-ThrottleLimit <Int32>]
   [-ComputerName <String[]>]
   [-Namespace <String>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-WmiInstance
   [-PutType <PutType>]
   [-AsJob]
   [-Impersonation <ImpersonationLevel>]
   [-Authentication <AuthenticationLevel>]
   [-Locale <String>]
   [-EnableAllPrivileges]
   [-Authority <String>]
   [-Credential <PSCredential>]
   [-ThrottleLimit <Int32>]
   [-ComputerName <String[]>]
   [-Namespace <String>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]

Description

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

New CIM cmdlets, introduced Windows PowerShell 3.0, perform the same tasks as the WMI cmdlets. The CIM cmdlets comply with WS-Management (WSMan) standards and with the Common Information Model (CIM) standard. this enables cmdlets to use the same techniques to manage Windows-based computers and those running other operating systems. Instead of using Set-WmiInstance, consider using the Set-CimInstance or New-CimInstance cmdlets.

Examples

Example 1: Set WMI logging level

Set-WmiInstance -Class Win32_WMISetting -Arguments @{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\n...}
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                      :

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's defined by the @{property = value} construction. The class information that's returned reflects the new value.

Example 2: Create an environment variable and its value

$setWmiInstanceSplat = @{
    Class = 'win32_environment'
    Arguments = @{
        Name="testvar"
        VariableValue="testvalue"
        UserName="<SYSTEM>"
    }
}
Set-WmiInstance @setWmiInstanceSplat

__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

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. This operation requires appropriate credentials and that you may have to restart Windows PowerShell to see the new environment variable.

Example 3: Set WMI logging level for several remote computers

$setWmiInstanceSplat = @{
    Class = 'Win32_WMISetting'
    Arguments = @{LoggingLevel = 2}
    ComputerName = 'system01', 'system02', 'system03'
}
Set-WmiInstance @setWmiInstanceSplat

__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\n...}
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                      :
...

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's defined by the @{property = value} construction. The returned class information reflects the new value.

Parameters

-Arguments

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

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

Type:Hashtable
Aliases:Args, Property
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-AsJob

Indicates that this cmdlet runs as a background job. Use this parameter to run commands that take a long time to finish.

When you specify 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 is used for 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.

To use this parameter together with remote computers, the local and remote computers must be configured for remoting. Additionally, you must start Windows PowerShell using the Run as administrator option. For more information, see about_Remote_Requirements.

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

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Authentication

Specifies the authentication level that must be used with the WMI connection. The acceptable values for this parameter 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 start of each call when the application receives the request.
  • 4: Packet. Authentication is performed on all the data that's received from the client.
  • 5: PacketIntegrity. All the data that's 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.
Type:AuthenticationLevel
Accepted values:Default, None, Connect, Call, Packet, PacketIntegrity, PacketPrivacy, Unchanged
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Authority

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 can't include the authority setting when you connect to the local computer.

Type:String
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Class

Specifies the name of a WMI class.

Type:String
Position:0
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-ComputerName

Specifies the name of the computer on which this cmdlet runs. 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 doesn't rely on Windows PowerShell remoting. You can use the ComputerName parameter even if your computer isn't configured to run remote commands.

Type:String[]
Aliases:Cn
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Confirm

Prompts you for confirmation before running the cmdlet.

Type:SwitchParameter
Aliases:cf
Position:Named
Default value:False
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Credential

Specifies a user account that has permission to perform this action. The default is the current user.

Type a user name, such as User01 or Domain01\User01, or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, this cmdlet prompts for a password.

This parameter isn't supported by any providers installed with parameter isn't supported by any providers installed with Windows PowerShell.

Type:PSCredential
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-EnableAllPrivileges

Indicates that this cmdlet enables all the permissions of the current user before the command it makes the WMI call.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Impersonation

Specifies the impersonation level to use. The acceptable values for this parameter 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.
Type:ImpersonationLevel
Accepted values:Default, Anonymous, Identify, Impersonate, Delegate
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-InputObject

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

Type:ManagementObject
Position:Named
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False

-Locale

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

Type:String
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Namespace

Specifies the WMI repository namespace where the referenced WMI class is located when it's used with the Class parameter.

Type:String
Aliases:NS
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Path

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

Type:String
Position:Named
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-PutType

Indicates whether to create or update the WMI instance. The acceptable values for this parameter 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 doesn't exist.
Type:PutType
Accepted values:None, UpdateOnly, CreateOnly, UpdateOrCreate
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-ThrottleLimit

Specifies the maximum number of concurrent connections that can be established to run this command. 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.

Type:Int32
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet isn't run.

Type:SwitchParameter
Aliases:wi
Position:Named
Default value:False
Required:False
Accept pipeline input:False
Accept wildcard characters:False

Inputs

None

This cmdlet doesn't accept input.

Outputs

None

This cmdlet doesn't generate output.

Notes

Windows PowerShell includes the following aliases for Set-WmiInstance:

  • swmi