Set-Partition

Set-Partition

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

Syntax

Parameter Set: ByNumberAttributes
Set-Partition [-DiskNumber] <UInt32> [-PartitionNumber] <UInt32> [-AsJob] [-CimSession <CimSession[]> ] [-IsActive <Boolean> ] [-IsHidden <Boolean> ] [-IsReadOnly <Boolean> ] [-NoDefaultDriveLetter <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByDriveLetter
Set-Partition -DriveLetter <Char> [-AsJob] [-CimSession <CimSession[]> ] [-IsOffline <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByDriveLetterAccessPath
Set-Partition -DriveLetter <Char> [-AsJob] [-CimSession <CimSession[]> ] [-NewDriveLetter <Char> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByDriveLetterAttributes
Set-Partition -DriveLetter <Char> [-AsJob] [-CimSession <CimSession[]> ] [-IsActive <Boolean> ] [-IsHidden <Boolean> ] [-IsReadOnly <Boolean> ] [-NoDefaultDriveLetter <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ById
Set-Partition -DiskId <String> -Offset <UInt64> [-AsJob] [-CimSession <CimSession[]> ] [-IsOffline <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByIdAccessPath
Set-Partition -DiskId <String> -Offset <UInt64> [-AsJob] [-CimSession <CimSession[]> ] [-NewDriveLetter <Char> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByIdAttributes
Set-Partition -DiskId <String> -Offset <UInt64> [-AsJob] [-CimSession <CimSession[]> ] [-IsActive <Boolean> ] [-IsHidden <Boolean> ] [-IsReadOnly <Boolean> ] [-NoDefaultDriveLetter <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByNumber
Set-Partition [-DiskNumber] <UInt32> [-PartitionNumber] <UInt32> [-AsJob] [-CimSession <CimSession[]> ] [-IsOffline <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByNumberAccessPath
Set-Partition [-DiskNumber] <UInt32> [-PartitionNumber] <UInt32> [-AsJob] [-CimSession <CimSession[]> ] [-NewDriveLetter <Char> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByObject
Set-Partition -InputObject <CimInstance[]> [-AsJob] [-CimSession <CimSession[]> ] [-IsOffline <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByObjectAccessPath
Set-Partition -InputObject <CimInstance[]> [-AsJob] [-CimSession <CimSession[]> ] [-NewDriveLetter <Char> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByObjectAttributes
Set-Partition -InputObject <CimInstance[]> [-AsJob] [-CimSession <CimSession[]> ] [-IsActive <Boolean> ] [-IsHidden <Boolean> ] [-IsReadOnly <Boolean> ] [-NoDefaultDriveLetter <Boolean> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Detailed Description

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

Parameters

-AsJob

-CimSession<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.

-DiskId<String>

Specifies the disk ID of the partition to modify.

-DiskNumber<UInt32>

Specifies the disk number of the partition to modify.

-DriveLetter<Char>

Specifies the drive letter of the partition to modify.

-InputObject<CimInstance[]>

Specifies the Partition object to modify. Enter a Partition CIM object. The Partition object is exposed by the Get-Partition cmdlet.

-IsActive<Boolean>

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

-IsHidden<Boolean>

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.

-IsOffline<Boolean>

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

-IsReadOnly<Boolean>

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

-NewDriveLetter<Char>

Specifies the new drive letter for the partition.

-NoDefaultDriveLetter<Boolean>

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.

-Offset<UInt64>

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

-PartitionNumber<UInt32>

Specifies the number of the partition.

-ThrottleLimit<Int32>

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.

<CommonParameters>

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

Inputs

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

• 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

The output type is the type of the objects that the cmdlet emits.

• None

Notes

• The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

Examples

Example 1: Set the partition to read-only

This example makes partition Y read-only.

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

Example 2: Set an MBR partition to active

This example makes the MBR partition Y active.

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

Example 3: Hide the partition

This example hides partition Y.

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

Example 4: Take the partition offline

This example takes the partition and volume offline.

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

Example 5: Change the drive letter

This example changes the drive letter from Y to Z.

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

Related topics

Get-Partition

New-Partition