3 Methods to Create Bootable USB Windows 10 [Full Guide]

Here, we collect three different methods to help you create bootable USB in Windows 10 easily and effectively.

By Emily / Last Updated June 10, 2020

Why create a bootable USB in Windows 10?

In most cases, when the Windows 10 operating system goes wrong and the PC starts to run slowly or even stop working properly, your first move will be searching online for a solution. If lucky, you can get an effective solution to fix this issue. If not, the last resort should be reinstalling the operating system from the DVD or CD. What if your PC does not have an optical drive, or the original installation DVD is not available any longer?

In this situation, a bootable USB installer is a great alternative, which allows you to reinstall Windows 10 from a USB drive. Briefly, the USB stick is portable and compatible with nearly all desktops or laptops. After all, a USB port can be found on every PC. Besides, installing OS from USB drive is also quicker than from DVD or CD. Therefore, more and more users like to make a bootable USB installer to keep handy.

3 Methods to make a bootable USB drive for Window 10

In this part, we would like to share 3 different methods with you to make a bootable USB flash drive so that you can install OS more flexibly. Without any further ado, let’s get started.

Note: no matter which method you will choose finally, please ensure you have a copy of the required files stored in USB stick because it will be erased in the process. Free AOMEI Backupper is recommended for this backup task.

1. Create bootable USB Windows 10 via CMD

First of all, we will demonstrate how to make a bootable USB using Command Prompt. Download the Windows 10 ISO files from the official site and make sure the USB flash drive has at least 5GB free space.

Step 1. Press “Win+R” at the same time to open “Run” dialogue. Input “cmd” and hit on “Enter” key.

Step 2. When the Command Prompt window opens, type “diskpart” and press “Enter” to launch DiskPart.exe tool. Then execute the following command in sequence.

в–ёlist disk
в–ёselect disk #
в–ёclean
в–ёcreate partition primary
в–ёselect partition 1
▸format fs=ntfs quick (To create UEFI bootable USB, format it as FAT32 with command “format fs=fat32 quick” instead)
в–ёactive

After you format the USB flash drive and set the primary partition as active, type “Exit” to close the diskpart.exe. Then use File Explorer to copy and paste the entire contents of the Windows ISO to the USB flash drive.

What if file copy fails?
If the Windows image file is over than 4GB, surpassing the file size limit of FAT32 file system, you will fail to copy files onto the USB flash drive. Once it happens, do as below:
1. Copy everything except the Windows image file (sources\install.wim) to the USB drive (either drag and drop, or use the following command, where D: is the mounted ISO and F: is the USB flash drive.)
robocopy D: F: /s /max:3800000000
2. Split the Windows image file into smaller files, and copy them onto the USB drive:
Dism /Split-Image /ImageFile:D:\sources\install.wim /SWMFile:F:\sources\install.swm /FileSize:3800

2. Make bootable Win 10 USB via Windows USB/DVD Download Tool

Secondly, you can make use of the Windows USB/DVD Download Tool. It can create a copy of ISO files onto USB flash drive as an installer.

Step 2. Run it. In the Source box, type the name and path of your Windows ISO file, or click BROWSE and select the file from the OPEN dialog box. Click “Next”.

Step 3. Select USB DEVICE to create a copy on a USB flash drive.

Step 4. Choose your USB drive and click “Begin copying”.

After it is finished, install Windows by moving to the root folder of your USB drive, and then double-click Setup.exe.

3. Make bootable USB via MediaCreationTool

Considering that most users tend to use MediaCreationTool, so here we also illustrate how to use this tool to create bootable USB in Windows 10.

Step 1. Download MediaCreationTool and run it as an administrator.

Step 2. Select ”Accept” in the license terms screen.

Step 3. Select “Create installation media for another PC”, and then select Next.

Step 4. Choose the language, edition, and architecture (64-bit or 32-bit) for Windows 10.

Step 5. Choose ”USB flash drive” and click “Next”.

Step 6. Choose your prepared USB drive from the list, then ”Next”.

Step 7. Once done, the tool will start to download the latest Windows 10 installation files to your device.

When it is over, this data is written to your flash drive and the USB is made bootable with the newest Windows 10 setup.

Further study: create bootable USB to run Win 10 from flash drive

Above content is all about how to make a bootable USB stick to install OS. If you do that for running Windows 10 operating system on another computer with an older operating system, you can run Windows 10 directly through a bootable USB drive. For this purpose, you can turn to the free partition manager: AOMEI Partition Assistant Standard. It is compatible with all editions of Windows 10/8/7 and Windows XP/Vista. With it, you can create Windows bootable USB drive with ISO files. Below is the detailed instruction:

Step 1. Download the freeware, install and run AOMEI Partition Assistant Standard.

Step 2. Click “All Tools” > “Windows To Go Creator” on the left side.

Step 3. Tick “Create Windows ToGo for personal computer”, and then click “Next”.

Step 4. Choose “Create Windows To Go with system disc/ISO” and select the prepared ISO file. Click “Next”.

Step 5. Select the USB drive you have prepared and click “Proceed”.

After it is done, you can insert the bootable USB to the target computer, change boot order in BIOS and boot PC from it.

If you want to create bootable USB drive with current operating system installed on your computer, you can upgrade to Professional. That also enables you to run Windows from USB on Mac.

Summary

In this article, we shared 3 different ways to create bootable USB in Windows 10 as an installer, plus an additional way to make a portable boot USB to run OS on any other computers. Choose one according to your specific requirements. If you plan to create a bootable USB to repair boot issues caused by damaged MBR or disk errors, the AOMEI Partition Assistant Standard can also help you a lot.

Create a Bootable USB Flash Drive

Applies To: Windows Server 2016 Essentials, Windows Server 2012 R2 Essentials, Windows Server 2012 Essentials

You can create a bootable USB flash drive to use to deploy Windows Server Essentials. The first step is to prepare the USB flash drive by using DiskPart, which is a command-line utility. For information about DiskPart, see DiskPart Command-Line Options.

To create a bootable USB flash drive for use in recovering or reinstalling Windows on a PC instead of a server, see Create a recovery drive.

For additional scenarios in which you may want to create or use a bootable USB flash drive, see the following topics:

To create a bootable USB flash drive

Insert a USB flash drive into a running computer.

Open a Command Prompt window as an administrator.

In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk , and then click ENTER. The list disk command displays all the disks on the computer. Note the drive number or drive letter of the USB flash drive.

At the command prompt, type select disk , where X is the drive number or drive letter of the USB flash drive, and then click ENTER.

Type clean , and the click ENTER. This command deletes all data from the USB flash drive.

To create a new primary partition on the USB flash drive, type create partition primary , and then click ENTER.

To select the partition that you just created, type select partition 1 , and then click ENTER.

To format the partition, type format fs=ntfs quick , and then click ENTER.

If your server platform supports Unified Extensible Firmware Interface (UEFI), you should format the USB flash drive as FAT32 rather than as NTFS. To format the partition as FAT32, type format fs=fat32 quick , and then click ENTER.

Type active , and then click ENTER.

Type exit , and then click ENTER.

When you finish preparing your custom image, save it to the root of the USB flash drive.

How to Prepare Bootable Install Media for Windows 10 — DVD, USB or SD Card

NOTE: These instructions reference Windows 10, but they work just as well if you want to create a bootable copy of Windows 7 or Windows 8.

Technical Level : Basic

Summary
If you performing a new installation of Windows 10, you might need to prepare bootable install media. The Media you choose to install from will depend on certain factors, such as the Boot Scheme used by your computer (BIOS, UEFI) in addition to the storage device (hard disk partitioning layout). Examples of partitioning layout include MBR (BIOS) and GPT (UEFI). In this article, we show you several ways to create a bootable copy of Windows 10 from an ISO file. An ISO file is a digital replica of a virtual disc, which users will have to make bootable on a blank DVD, USB thumb drive or SD card.
Details

Before we begin, you need to have a copy of Windows 10 ISO file. See the following article for instructions how to download a ISO image for Windows 10 using the Media Creation Tool:

NOTE: Microsoft no longer provides direct access to Windows 10 ISO images from the Microsoft Techbench website for computers running Windows 7, Windows 8.0, Windows 8.1 and Windows 10. You can still download the ISO image from computers running earlier versions of Windows such as Windows XP, Windows Vista or alternative operating systems such as Linux or macOS.

After downloading the Windows 10 ISO, you need prepare it, this is especially important for Windows 7 and earlier versions of Windows.

You can use the built in Disc Image burning tool or Microsoft .iso to USB/DVD tool to create a bootable DVD or USB (requires a blank DVD) or Rufus, a third party program that can create a bootable USB flash stick (requires at least 8 GBs).

After downloading the .ISO file, right click it and click Burn disc image

Insert a blank DVD

Windows 8/8.1 users can mount the .ISO file then start the upgrade automatically. Learn more here

Important:

If you are creating a bootable USB thumb drive, make sure the thumb drive is first formatted as FAT32.

Connect the thumb drive

Right click thumbdrive

Make sure FAT32 is selected as the file system.

For UEFI based systems

If your computer is UEFI based, these are normally systems that come pre-loaded with Windows 8 or later, you will need to prepare the ISO file for such a configuration or you will receive an error message during setup. The thumb drive needs to be formatted as FAT32. If you are installing on a hard disks that is 4 TBs or more in size, you need to format the disk using the GPT partitioning scheme. Rufus ensures your copy of Windows 10 is properly prepared to support it.

After downloading Rufus, connect your thumb drive, launch Rufus application, click in the Device list box then choose your thumb drive.

Click in the list box then choose your partition scheme. If you select the ISO, Rufus will automatically select the appropriate options for you. Next, click in the File system list box, then choose FAT32. If your thumb drive is larger than 32 GBs, choose exFAT.

Leave the default Cluster size then enter a label for your thumb drive.

Click the choose disk image icon, browse to where the ISO file is located, select it then click Open.

Click Start to copy the files to the thumb drive.

If you have any files on the thumb drive, they will be deleted.

Wait while the files are copied to your thumb drive.

Close when complete

Open File Explorer, then launch setup to begin the installation.

If you are performing a clean install see instructions how to configure your BIOS or UEFI firmware:

Was this article helpful?

Sorry this didn’t help.

Great! Thanks for your feedback.

How satisfied are you with this article?

Thanks for your feedback, it helps us improve the site.