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Create practice partition layouts because that your tough disk cd driver (HDDs), solid-state drives (SSDs), and other drives once deploying home windows to BIOS–based devices.

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Note

If you usage a custom partition layout top top Windows 10 or windows 11 for desktop computer editions (Home, Pro, Enterprise, and also Education), upgrade the Push-button reset recovery script so the recovery tools have the right to recreate the practice partition layout as soon as needed.


Partition Requirements

When friend deploy home windows to a BIOS-based device, friend must style hard drives by using an MBR file system. Home windows does not support the GUID partition table (GPT) document system top top BIOS-based computers.

An MBR drive have the right to have up to four standard partitions. Typically, these traditional partitions are designated as primary partitions. For information around how to create extr partitions past this limit, watch Configure more than 4 Partitions on a BIOS/MBR-Based hard Disk.

System partition

Each bootable drive must contain a mechanism partition. The system partition have to be configured as the energetic partition.

The minimum size of this partition is 100 MB.

Windows partition

This partition must have at the very least 20 gigabytes (GB) of drive space for 64-bit versions, or 16 GB because that 32-bit versions.The windows partition should be formatted utilizing the NTFS record format.The home windows partition must have 16 GB of complimentary space after the user has actually completed the out Of Box experience (OOBE) and also Automatic Maintenance has completed.This partition can have a preferably of 2 terabytes (TB) of space. Software program tools to expand the visible partition an are beyond 2 TB room not supported on BIOS since they have the right to interfere with software solutions for application compatibility and recovery.

Recovery devices partition

Create a different recovery partition to assistance automatic failover and also to support booting Windows BitLocker journey Encryption-encrypted partitions.

We recommend the you location this partition in a different partition, automatically after the windows partition. This enables Windows to modify and also recreate the partition later if future updates require a larger recovery image.

The windows Recovery setting (Windows RE) tools need additional free space:

A minimum that 52 MB is required but 250 MB is recommended, to accomodate future updates, specifically with tradition partition layouts.

When calculating free space, note:

The restore image, winre.wim, is typically between 250-300MB, depending upon what drivers, languages, and also customizations friend add.The record system itself can take up additional space. For example, NTFS may reserve 5-15MB or an ext on a 750MB partition.

Data partitions

The recommended partition layout doesn"t incorporate utility or data partitions.

However, if energy or data partitions space required, they must be inserted either before the home windows partition or after ~ the home windows RE partition. By maintaining the Windows and also recovery partitions together, then when future to update of home windows RE area available, windows will have the ability to grow the home windows RE partition through shrinking the home windows partition.

This layout renders it more an overwhelming for end users to remove the data partition and merge the space with the windows partition. Because that example, the windows RE partition might need come be moved to the finish of the unused an are reclaimed indigenous the data partition, so that the home windows partition deserve to be extended. Windows 10 go not encompass functionality or utility to facilitate this process. However, manufacturers can construct and administer such a energy if pcs are shipped through data partitions.

Each partition deserve to have a preferably of 2 terabytes (TB) the space.

If you"re going to it is in adding an ext than four complete partitions to the disk, check out Configure an ext than four Partitions top top a BIOS/MBR-Based hard Disk for more info.

Partition layout

If you install Windows making use of a bootable USB an essential made by home windows Imaging and also Configuration Designer (ICD), it creates the complying with layout by default: a device partition, a windows partition, and a recovery tools partition.

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System and also utility partitions

By default, device partitions do not appear in paper Explorer. This helps protect end users from accidentally modifying a partition.

To keep system and also utility partitions from being reset, use kind 0x27. Execute not use any of the adhering to types: 0x7, 0x0c, 0x0b, 0x0e, 0x06, and 0x42.

To collection partitions as utility partitions

When you are using Diskpart in your deployment procedure use the set id=27 command ~ you create the partition.

To verify the system and also utility partitions exist

Click Start, right-click This PC, and also then click Manage. The Computer Management window opens.Click Disk Management. The perform of available drives and also partitions appears.In the list of drives and partitions, check that the system and also utility partitions are present and also are no assigned a drive letter.

Sample files: configuring disc layout by making use of Windows PE and also DiskPart scripts

For image-based deployment, boot the computer to home windows PE, and then use the DiskPart tool to produce the partition frameworks on your location PCs.


Note

In this DiskPart examples, the partitions are assigned the letters: System=S, Windows=W, and Recovery=R.


Change the windows drive letter come a letter that’s near the finish of the alphabet, such as W, to avoid drive letter conflicts. Execute not usage X, due to the fact that this drive letter is scheduled for home windows PE. ~ the device reboots, the windows partition is assigned the letter C, and also the various other partitions don’t get drive letters.

If friend reboot, Windows PE reassigns disk letters alphabetically, beginning with the letter C, without regard come the configuration in home windows Setup. This configuration can readjust based ~ above the visibility of different drives, such together USB speed drives.

The following steps describe how come partition your tough drives and prepare to apply images. You deserve to use the password in the sections that follow to finish these steps.

To partition difficult drives and also prepare to use images

Save the following code together a text record (CreatePartitions-BIOS.txt) top top a USB speed drive.

rem == CreatePartitions-BIOS.txt ==rem == These commands are offered with DiskPart torem create three partitionsrem for a BIOS/MBR-based computer.rem readjust the partition size to to fill the driverem as necessary. ==select disc 0cleanrem == 1. Mechanism partition ======================create partition major size=100format quick fs=ntfs label="System"assign letter="S"activerem == 2. Windows partition =====================rem == a. Develop the home windows partition =======create partition primaryrem == b. Create room for the recovery tools rem ** update this dimension to match the dimension ofrem the recovery devices (winre.wim)rem to add some totally free space.shrink minimum=650rem == c. Prepare the windows partition ====== format fast fs=ntfs label="Windows"assign letter="W"rem == 3. Recovery tools partition ==============create partition primaryformat quick fs=ntfs label="Recovery"assign letter="R"set id=27list volumeexitUse Windows PE to boot the location computer.

Clean and partition the drive. In this example, F is the letter the the USB flash drive.

DiskPart /s F:CreatePartitions-BIOS.txtIf you usage a practice partition layout top top Windows 10 for desktop computer editions, update the push-button recovery manuscript so the recovery tools deserve to recreate the tradition partition layout when needed.


Important

To protect against bare steel recovery boot worries due to partition size, it is recommended the manufacturers enable the bare metal recovery feature’s auto generation manuscript to create the partition used for the recovery WIM. If manufacturer’s wish to use a tradition DISKPART manuscript for partition creation, the recommended minimum partition dimension is 990MB and also a minimum the 250MB of totally free space.

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Next steps

Use a deployment script to apply the Windows photos on the newly created partitions. For much more information, check out Capture and also Apply Windows, System, and also Recovery Partitions.