New-Partition
Creates a new partition on an existing Disk object.
Syntax
New-Partition
[-DiskNumber] <UInt32[]>
[-Size <UInt64>]
[-UseMaximumSize]
[-Offset <UInt64>]
[-Alignment <UInt32>]
[-DriveLetter <Char>]
[-AssignDriveLetter]
[-MbrType <MbrType>]
[-GptType <String>]
[-IsHidden]
[-IsActive]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[<CommonParameters>]New-Partition
-DiskId <String[]>
[-Size <UInt64>]
[-UseMaximumSize]
[-Offset <UInt64>]
[-Alignment <UInt32>]
[-DriveLetter <Char>]
[-AssignDriveLetter]
[-MbrType <MbrType>]
[-GptType <String>]
[-IsHidden]
[-IsActive]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[<CommonParameters>]New-Partition
-DiskPath <String[]>
[-Size <UInt64>]
[-UseMaximumSize]
[-Offset <UInt64>]
[-Alignment <UInt32>]
[-DriveLetter <Char>]
[-AssignDriveLetter]
[-MbrType <MbrType>]
[-GptType <String>]
[-IsHidden]
[-IsActive]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[<CommonParameters>]New-Partition
-InputObject <CimInstance[]>
[-Size <UInt64>]
[-UseMaximumSize]
[-Offset <UInt64>]
[-Alignment <UInt32>]
[-DriveLetter <Char>]
[-AssignDriveLetter]
[-MbrType <MbrType>]
[-GptType <String>]
[-IsHidden]
[-IsActive]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[<CommonParameters>]Description
The New-Partition cmdlet creates a partition on a specified Disk object. Note: This cmdlet does not support creating dynamic volumes.
Examples
Example 1: Create a new partition on disk 1
PS C:\> New-Partition -DiskNumber 1 -UseMaximumSize -DriveLetter TThis example creates a new partition on disk 1 using the maximum available space and assigns a drive letter T.
Example 2: Get all RAW disks, initialize the disks, partition, and format them
PS C:\> Get-Disk | Where-Object PartitionStyle -Eq "RAW" | Initialize-Disk -PassThru | New-Partition -AssignDriveLetter -UseMaximumSize | Format-VolumeThis example uses five cmdlets and the pipeline to get all disks, filter them for only RAW, unpartitioned disks, initialize the disks, partition the disks, and then to format them.
Example 3: Create a new EFI partition on GPT disk 2
PS C:\> New-Partition -DiskNumber 2 -Size 500MB -GptType "{c12a7328-f81f-11d2-ba4b-00a0c93ec93b}"This example creates a new EFI partition on disk 2 with a size of 500 MB.
Example 4: Create a Windows/system partition on MBR disk 0
PS C:\> New-Partition -DiskNumber 0 -Size 100GB -MbrType IFS -IsActiveThis example creates a new Windows/system partition on MBR disk 0 with a size of 100 GB.
Parameters
-Alignment
Specifies the alignment boundary in bytes.
| Type: | UInt32 |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-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 |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-AssignDriveLetter
Assigns a drive letter to the new partition.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| 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 |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-DiskId
Specifies the ID of the disk on which to create the partition.
| Type: | String[] |
| Aliases: | Id |
| Position: | Named |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-DiskNumber
Specifies an array of disk numbers.
| Type: | UInt32[] |
| Position: | 0 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-DiskPath
Specifies the path of the disk on which to create the partition.
| Type: | String[] |
| Position: | Named |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-DriveLetter
Specifies the specific drive letter to assign to the new partition.
| Type: | Char |
| Aliases: | NewDriveLetter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-GptType
Specifies the type of GPT partition to create (by GUID). The format should be 32 digits separated by hyphens, enclosed in braces and quoted:
"{00000000-0000-0000-0000-000000000000}"
By default, the New-Partition cmdlet creates a basic GPT data partition.
The GUIDs of valid types are:
- System Partition -
"{c12a7328-f81f-11d2-ba4b-00a0c93ec93b}" - Microsoft Reserved -
"{e3c9e316-0b5c-4db8-817d-f92df00215ae}" - Basic data -
"{ebd0a0a2-b9e5-4433-87c0-68b6b72699c7}" - Microsoft Recovery -
"{de94bba4-06d1-4d40-a16a-bfd50179d6ac}"
| Type: | String |
| Position: | Named |
| Default value: | "{ebd0a0a2-b9e5-4433-87c0-68b6b72699c7}" |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-InputObject
Specifies the input object that is used in a pipeline command.
| Type: | CimInstance[] |
| Position: | Named |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-IsActive
Marks the partition as active:
- On a BIOS-based system, the active partition is the partition the system will boot to. This partition must be a primary partition.
- On a Unified Extensible Firmware Interface (UEFI)-based system, this setting is not used. The system will always boot to the EFI System Partition (ESP). If Active is set for this partition type, it is ignored.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-IsHidden
Creates a hidden partition.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-MbrType
Specifies the type of MBR partition to create.
| Type: | MbrType |
| Accepted values: | FAT12, FAT16, Extended, Huge, IFS, FAT32 |
| Position: | Named |
| Default value: | Huge |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Offset
Specifies the starting offset, in bytes.
| Type: | UInt64 |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Size
Specifies the size of the partition to create. If not specified, then the units will default to Bytes. The acceptable value for this parameter is a positive number followed by the one of the following unit values: Bytes, KB, MB, GB, or TB.
| Type: | UInt64 |
| Position: | Named |
| Default value: | None |
| Required: | False |
| 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 |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-UseMaximumSize
Creates the largest possible partition on the specified disk.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
Inputs
You can pipe a Disk object to the InputObject parameter.
Outputs
This cmdlet outputs an object that represents the newly created partition.
Notes
- You can use either -AssignDriveLetter parameter or -DriveLetter parameter, but not both at the same time, while creating a new partition.
- When used in Failover Cluster, cmdlets from the Storage module operate on cluster level (all servers in the cluster).