How to Create Bootable Partition on Hard Disk/USB from ISO

Are you wondering how to create bootable partition from ISO on USB flash drive or HDD/SSD? This tutorial dives into creating a fully functional bootable partition to run Windows OS.

Bootable partitions on hard disks or USBs help you boot up a working PC on any computer. With a USB or hard disk, you can run a PC with Windows and recover and repair it anywhere. If you need to create bootable partition from ISO, this article from EaseUS will teach you how to create a bootable partition on SSD/USB from an ISO.

Why to Make a Bootable Partition on Windows

A bootable partition is a dedicated storage on the hard drive or SSD where the necessary boot files, such as the Bootloader, kernel, and system configuration files, are located. In case of dreadful errors, we invoke the boot partitions to rebuild the Windows PC. Keeping bootable USBs or hard drives is handy in many ways. Let us see some advantages of having a bootable partition on Windows:

• Keeps boot files away from the main Windows OS and user data.
• Enables multiple operating systems on a single PC allowing you to enjoy optimal performance.
• Bootable partitions help you recover the bootloader without affecting the entire OS and data in case of issues.
• Boot partitions ensure compatibility with the system's firmware (BIOS or UEFI) when the OS does not support certain disk configurations (e.g., GPT vs. MBR).

How to Create Bootable Disk/Partition from ISO File

If you want to make portable USBs or hard drives with bootable partition, follow the methods below.

Way 1. Using Professional Bootable USB Creator

The simplest way to create a bootable USB from an ISO is to rely on EaseUS OS2Go. Even if you lack an ISO file, OS2Go lets you create a bootable partition with BIOS and UEFI support. If you are struggling with Windows 11 system requirements, you can use it to install Windows 11 without Secure Boot and TPM and create a working USB or hard drive to boot up Windows OS anywhere.

The bootable disk created with EaseUS OS2Go allows you to run fully functional Windows on USBs and HDD/SSD. You can also create an emergency disk of your PC to restore Windows and essential data. Download EaseUS OS2Go and create a bootable disk from an ISO file or without the ISO file.

Step 1. Install EaseUS OS2Go on your Windows computer. Plug in a USB drive or external hard drive that is large enough.

Step 2. Choose the third tab "Windows Install Drive Creator". First choose the Windows versions you want to install, EaseUS OS2Go supports creating Windows 11/10/8.1 installation media. You could also select a local ISO file. When all set, click "Create".

Step 3. Then you will see a safety warning message, telling you that all data on the selected disk will be deleted. Click "Continue" to proceed.

Step 4. Then EaseUS OS2Go will start to create the Windows Installation media. It usually takes a while to download a ISO file, the time it takes depend on your OS and Network condition. When the progress reaches 100%, the USB drive should be bootable now.

Step 5. Insert the Windows Installation media to your computer and start the installation process.

Way 2. Using CMD

If you are familiar with the Command Prompt, Windows also lets you create a bootable partition on a USB or HDD/SSD from an ISO. Let us now see how to make the HDD/SSD or USB bootable and burn the ISO file.

Step 1. Open Command Prompt as administrator on Windows PC.

Step 2. Type "disk part" and click Enter to open the Windows Diskpart tool on the PC.

Step 3. Run the command below (execute one after the other):

• list disk
• select disk X (X is the number of your external storage device)
• clean
• create partition primary
• select partition 1
• format fs=ntfs quick (if you want to create UEFI bootable USB, type “format fs=fat32 quick”)
• active

Step 4. Now, the USB or HDD/SSD is set to active, meaning the partition on the device is bootable. Enter "exit" and execute the command to close the Diskpart tool.

Step 5. Run the following command to burn the ISO file onto the USB flash drive/HDD/SSD.

• xcopy X:\*.* Y:/s/e/f (Replace X with the drive letter of the ISO file and B with the USB/SSD/HDD drive letter.
• D:\Boot\Bootsect /NT60 Y: /force /MBR (Y is the driver letter of USB).

Upon execution, the commands will burn the ISO file onto the bootable device and write the bootloader files.

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Pro Tip: How to Partition a USB Flash Drive

Partitions help you maintain folders and data on a single device. If you have a USB flash drive or thumb drive, you can carry multiple OS, rescue apps, files, and system installation on a single device. Let us see how to use Disk Management to partition a USB.

Step 1. Connect the USB to your PC and open Disk Management on the Windows PC by typing diskmgmt.msc in Rug dialogue (Win + R).

Step 2. Select the USB flash drive, right-click it, and click New Simple Volume.

Step 3. Set the volume size and click Next.

Step 4. Set the drive letter for the USB and click Next.

Step 5. Set the file format of USB and click Next.

Step 6. Click Finish to partition the USB on Windows. This ensures you have two partitions on the USB drive.

To Sum Up

This is how you can create bootable partition from ISO on Windows 11/10/8/7. Additionally, knowing how to partition USB or hard drives helps you organize folders and data more efficiently. So, if you want to create a portable USB bootable partition, EaseUS OS2Go is a better choice. With a simple interface, you only need simple clicks to create a bootable partition on a hard drive/USB with/without an ISO.

FAQs on How to Create Bootable Partition from ISO Windows 10

Here are some frequently asked questions on how to create bootable partition from ISO on Windows.

1. How do I create a bootable partition from an ISO in Linux?

You can use CMD, GNOME Multi Writer, or a Linux GUI to create a bootable partition from an ISO file on Linux. The best way to do this is to install GNOME Multi Writer with a GUI. GNOME helps you copy and burn the ISO file to a USB flash drive.

2. Does partitioning a drive erase data?

Generally, when partitioning hard drives or USBs, the unallocated space on the disk is used to create the new partition. But, if you delete the wrong partition or existing partitions with data to make space, you may erase data.

3. How to create a bootable disk from an ISO file?

EaseUS OS2Go is ideal for creating a fully functional bootable disk with an ISO file. With a smooth interface and a couple of clicks, you can burn the ISO file onto a USB or hard drive, and then your portable device is ready to boot Windows anytime.

4. How to make a bootable partition?

Bootable partitions are created using USB flash drives or HDD/SSD and ISO files. First, set the USB flash drive as an active partition to make it a bootable drive, and then burn the ISO file with the bootloader, system config files, and kernel to make it a bootable partition.