By Dylan / Last Updated May 28, 2020

Scenario

Case one: “Hi, I want create a bootable partition from ISO for Windows 10, because I need to Windows 10 on other computer. Not DUAL-SYSTWM, I don’t want to install system. Anyone knows how to do that?”

-Question from Tenforums.com

Case two: “I have a valid Microsoft license for Windows 7 Home Premium for my computer. And I want to upgrade to Windows 8, someone tell me I can download Windows 8 ISO file and burn it to HDD to boot computer and install Windows 8. But I don’t know the detailed steps and I stuck at burning ISO file."

"Any ideas what I can do?”

-Question from Microsoft.com

Nowadays, more and more people want to create a bootable hard drive from ISO to satisfy their different demands. Here, according to the two scenarios, we are going to teach you how to use a USB to create bootable partition from ISO for portable OS and make a bootable partition for installation in Windows 10/8/7.

How to create a bootable(USB) partition from ISO in Windows 10/8/7?

Making a hard drive bootable allows you to boot other computers from your familiar system. Here, we recommend a tool called AOMEI Partition Assistant Professional, whose “Windows To Go Creator” can make a Windows system USB like Windows 10/8/7, Windows XP, Windows Vista. In this way, wherever you go, you can use windows system on any computer.

Plugin a USB drive, and you can download the Demo version and follow this tutorial to see how to create a bootable partition (USB) from ISO with AOMEI Partition Assistant.

    Preparations

  • A working computer with AOMEI Partition Assistant installed.

  • A USB or other external devices like HDD/SDD with at least 13GB (the larger, the better).

  • Back up your USB drive if there are important data on it, as it will be formatted.

Step 1. Install and open AOMEI Partition Assistant Professional. In the main interface, click “All Tools” > “Windows To Go Creator” in the left panel.

Win To Go Creator

Step 2. In this window, we choose “Create Windows ToGo with system disc/ISO”, if you don’t have ISO file, you can also create it with the current system, and click “Next”.

Create Win To Go With Windows Files

Step 3. In this window, AOMEI Partition Assistant will detect your USB drive automatically, if it doesn’t press “Refresh”. And select the ISO file, and click “OK”.

Choose Windows Files

Step 4. It will pop up a window prompt that this operation will erase all data on the USB, ensure you have backed up important data, and click “Yes”.

Confirm

Step 6. Press “Proceed” to start creating bootable partition from ISO with a USB drive.

Proceed

AOMEI Partition Assistant is a powerful computer and disk management tool. If you encounter a boot issue, you can also create Windows PE bootable USB or CD to repair your computer. Besides, it can help you to clone system to SSD, resize/create/shrink system drive, etc.

How to create bootable (USB) partition from ISO for Windows installation?

If you want to install Windows system on other computers, but you don’t have an installation CD, then you can follow this tutorial and use a USB or HDD/SSD to create a bootable partition from ISO to install system.

To create a bootable partition from ISO for installation in Windows 10/8/7, firstly, you need to make hard drive or USB flash drive bootable. Secondly, you need to burn ISO file to the bootable USB or HDD/SSD.

Step 1. Press “Win + R” to open Run box, and input “cmd” in it and hit Enter to open Command Prompt.

Step 2. Type “disk part” and press Enter to open the Diskpart tool. Then execute the following commands one by one:

  • list disk

  • select disk n (n 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

Clean And Set Active

Step 3. Then the partition of your USB is bootable, type “exit” and press Enter to close Diskpart. Use the following Commands and burn ISO to your USB drive

xcopy A:\*.* B: /s/e/f (replace A with the ISO file drive letter, and replace B with your USB drive letter)

D:\Boot\Bootsect /NT60 B: /force /mbr (B means the drive of your USB)

These two commands will copy ISO file to USB drive and write a bootloader to it.

Conclusion

This is how to create bootable partition from ISO in Windows 10/8/7. You are supposed to choose a method according to your need, the first method is to create a bootable USB to have a portable system, and the other one is to have a bootable USB for installing system on computer.