Set-Partition

Sets attributes of a partition, such as active, read-only, and offline states.

Syntax

Set-Partition
   [-IsReadOnly <Boolean>]
   [-NoDefaultDriveLetter <Boolean>]
   [-IsActive <Boolean>]
   [-IsHidden <Boolean>]
   [-IsShadowCopy <Boolean>]
   [-IsDAX <Boolean>]
   [-MbrType <UInt16>]
   [-GptType <String>]
   [-DiskNumber] <UInt32>
   [-PartitionNumber] <UInt32>
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -InputObject <CimInstance[]>
   [-NewDriveLetter <Char>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -InputObject <CimInstance[]>
   [-IsOffline <Boolean>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -InputObject <CimInstance[]>
   [-IsReadOnly <Boolean>]
   [-NoDefaultDriveLetter <Boolean>]
   [-IsActive <Boolean>]
   [-IsHidden <Boolean>]
   [-IsShadowCopy <Boolean>]
   [-IsDAX <Boolean>]
   [-MbrType <UInt16>]
   [-GptType <String>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   [-IsReadOnly <Boolean>]
   [-NoDefaultDriveLetter <Boolean>]
   [-IsActive <Boolean>]
   [-IsHidden <Boolean>]
   [-IsShadowCopy <Boolean>]
   [-IsDAX <Boolean>]
   [-MbrType <UInt16>]
   [-GptType <String>]
   -DriveLetter <Char>
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   [-IsReadOnly <Boolean>]
   [-NoDefaultDriveLetter <Boolean>]
   [-IsActive <Boolean>]
   [-IsHidden <Boolean>]
   [-IsShadowCopy <Boolean>]
   [-IsDAX <Boolean>]
   [-MbrType <UInt16>]
   [-GptType <String>]
   -DiskId <String>
   -Offset <UInt64>
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -DiskId <String>
   -Offset <UInt64>
   [-NewDriveLetter <Char>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -DiskId <String>
   -Offset <UInt64>
   [-IsOffline <Boolean>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -DriveLetter <Char>
   [-NewDriveLetter <Char>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   -DriveLetter <Char>
   [-IsOffline <Boolean>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   [-DiskNumber] <UInt32>
   [-PartitionNumber] <UInt32>
   [-NewDriveLetter <Char>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-Partition
   [-DiskNumber] <UInt32>
   [-PartitionNumber] <UInt32>
   [-IsOffline <Boolean>]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]

Description

The Set-Partition cmdlet sets the attributes of a partition, including active, read-only, hidden, offline, and the drive letter.

Examples

Example 1: Set the partition to read-only

PS C:\> Set-Partition -DriveLetter Y -IsReadOnly $True

This example makes partition Y read-only.

Example 2: Set an MBR partition to active

PS C:\> Set-Partition -DriveLetter Y -IsActive $True

This example makes the MBR partition Y active.

Example 3: Hide the partition

PS C:\> Set-Partition -DriveLetter Y -IsHidden $True

This example hides partition Y.

Example 4: Take the partition offline

PS C:\> Set-Partition -DriveLetter Y -IsOffline $True

This example takes the partition and volume offline.

Example 5: Change the drive letter

PS C:\> Set-Partition -DriveLetter Y -NewDriveLetter Z

This example changes the drive letter from Y to Z.

Required Parameters

-DiskId

Specifies the disk ID of the partition to modify.

Type:String
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-DiskNumber

Specifies an array of disk numbers. These represent the disks on which the partitions reside to modify.

Type:UInt32
Position:0
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-DriveLetter

Specifies the drive letter of the partition to modify.

Type:Char
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-InputObject

Specifies the input object that is used in a pipeline command.

Type:CimInstance[]
Position:Named
Default value:None
Accept pipeline input:True (ByValue)
Accept wildcard characters:False
-Offset

Specifies the partition's offset from the beginning of the disk, measured in bytes.

Type:UInt64
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-PartitionNumber

Specifies the number of the partition.

Type:UInt32
Aliases:Number
Position:1
Default value:None
Accept pipeline input:False
Accept wildcard characters:False

Optional Parameters

-AsJob

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

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

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

Type:CimSession[]
Aliases:Session
Position:Named
Default value:None
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
Accept pipeline input:False
Accept wildcard characters:False
-GptType

Sets the type of a GPT partition to a specific GUID.

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

Specifies that the partition is marked as active and can be used to start the system. This parameter is only relevant for MBR disks.

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IsDAX

Formats a volume as a DirectAccess (DAX) volume.

DAX provides applications with direct access and byte-addressability options via memory mapping on storage class memory (SCM) devices, such as NVDIMM-N.

If you do not specify the IsDAX parameter, the cmdlet defaults to a regular, non-DAX volume.

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IsHidden

Specifies that the partition is hidden. As a result, the partition does not receive a drive letter, does not receive a volume GUID path, and does not host volume mount points. This ensures that applications such as disk defragmenter do not access the partition.

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IsOffline

Takes the partition offline until explicitly brought back online, or until an access path is added to the partition.

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IsReadOnly

Sets the partition to be read-only (IsReadOnly $true) or read-write (IsReadOnly $false).

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IsShadowCopy
Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-MbrType

Sets the type of an MBR partition to a specific numeric ID.

Type:UInt16
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-NewDriveLetter

Specifies the new drive letter for the partition.

Type:Char
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-NoDefaultDriveLetter

Specifies that the automatic assignment of a drive letter is disabled. This is only honored for GPT disks. This attribute is useful in storage area network (SAN) environments.

Type:Boolean
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ThrottleLimit

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

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

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

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

Inputs

Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_Partition

You can pipe a Partition object to the InputObject parameter to specify the partition you want to modify by Partition object.

Outputs

None