Boot Partition

What is Boot Partition?

The place where the files for the operating system are stored is called the boot partition. It actually refers to the location where the boot loader is found, which helps in booting the operating system installed on the system.

In technical terms, a boot partition is also called a boot volume. It usually exists within the system partition since both the boot partition and the system partition are needed for searching the necessary files and loading them when a computer system is turned on.

Understanding Boot Partition

Boot Partition

A boot partition, also referred to as a boot volume, is the distinct region in the hard disk of the computer system where the boot loader is stored, which helps the computer to boot the operating system.

In addition to that, the boot partition can also store the operating system files.

The boot partition may reside within the system partition. In fact, it is usually its location because both of these specific partitions need the files to load them when you switch on your computer system.

The boot partition can help the computer system to install different versions of the same operating system without compromising each other. On a Windows system, the operating systems can be as follows:

However, if you want to install different versions of the same operating system, you will typically have to install the earlier versions of it first on your computer system.

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Creating a Boot Partition

There are different methods for creating a boot partition on a hard drive. But, before you start, keep in mind the following:

And, you will need to follow the steps for creating a new partition in your computer system very carefully for different types of operating systems than what is installed in your computer system currently, since the steps may vary accordingly.

Windows 10

In order to create a boot partition for Windows 10, you will first need to install the previous version of Windows and then go ahead with the following steps:

Windows XP

Windows 7 and Windows Vista:

Windows 8:

Windows 11

First, you will need to press Shift + F10 keys to open the Command Prompt. You will then have to enter different command lines to reduce the partition to get adequate unallocated space. The different commands are as follows:

Second, you will need to create a system partition by using the unallocated space and the following command lines:

Thirdly, after the partitions are made, you will need to enter the following commands to install the boot loader and other essential apps:

Finally, reboot the system.

Boot Partition Cloning and Transfer

You may, at times, need to transfer the boot partition to a new disk for the following reasons:

You can create a clone of the boot partition by producing a system image of it. You can even use tools or cloning software.

It will help in both cloning the boot drive as well as migrating the Windows operating system to a new Solid State Drive (SSD) or hard drive.

First, make sure that you have these following necessities:

To move the boot partition, the steps to follow include the following:

Before you start moving the boot partition to a new drive, make sure that it has a substantially large capacity so that it can hold both the system partition and the Windows boot partition.

Also, make sure that you clone or copy the entire disk and not just the C drive. This is necessary because, more often than not, the system partition and boot partition will be separated.

Is Boot Partition Necessary?

Well, the answer to this question is – It depends. You will not need a boot partition in every case.

For example, if you have only one operating system installed in your computer, you will normally not need to create a boot partition, especially if the hardware is of 2000 or more recent.

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These newer machines usually do not have the traditional compulsory requirement of a boot partition since they normally do not rely on the Basic Input Output System (BIOS) or Unified Extensible Firmware Interface (UEFI) firmware.

A boot partition is typically needed in the earlier systems and in those computers where the BIOS firmware has limited access to the initial 1024 storage sectors in the hard drive of the system during start-up.

In such cases, the operating system will be impossible to boot from a partition that is located beyond that.

Other situations where a boot partition is necessary are as follows:

Boot Partition Vs System Partition

What is the Size of Boot Partition?

Typically, the size of the boot partition can be anything but it should be in between 17 MB and 25 MB, and certainly not more than 50 MB.

What is Boot Partition Used for?

The boot partition is used to store the boot files for the Windows operating system and the boot loader.

It helps the computer to boot when it is turned on. It is also used to load different versions of the operating system.


The boot partition helps in the successful booting of the computer system.

This also helps with using the earlier versions of the operating system installed on your computer.

Therefore, if you already have one on your computer, it is better not to mess with it or delete it, even by mistake, as that will render your PC unbootable.