'Hi, what's the best way to make an external hard drive bootable? You see. Like copying all the Windows boot files to it so that I can boot Windows 10 from the bootable drive. Please, an easier way is much more appreciated.'

There are many significant reasons for creating a bootable HDD or USB drive that carries a user's customized Windows operating system. For example, when your PC unexpectedly shuts down and can be never turned on due to hard disk failure or system corruption, you can still easily start the computer from the bootable drive. A bootable external hard drive also does great help when a computer's dead or crashed. Besides, with a bootable external USB drive, you can use your own operating system wherever you go and whenever you like. To enjoy these advantages though creating a bootable external hard drive, you have three workable methods to choose from.

The following tutorial will help you create a bootable USB flash drive for Windows 8.1 or 8 the easy way using Microsoft’s own Windows USB/DVD Download Tool. This tutorial is also applicable for those of you trying to make bootable flash drive for Windows 7 or even the upcoming Windows 10. In my understanding this guide show how to make a bootable usb to install OS X on a pc. I would like to simply create a bootable usb in windows to install sierra on mac without transmac Any help? Thank you all guys. Faiz Orz Post author May 28, 2017 at 6:35 PM Reply. Watch and follow this tutorial: Video is deleted from youtube Sorry. Mar 21, 2019 UNetbootin is a free, open source utility that allows you to create bootable USB drives on Windows, Linux, and Mac OS X. If you’ve downloaded Windows 10 ISO image, here is how you can create a bootable Windows installer USB on Mac using UNetbootin. Plug a USB drive into your Mac and open Disk Utility. Format your usb stick with the disk utility tool. (Make sure the usb is partitioned as mac bootable then use use the image recovery and put your mounted OS X iso into the source and your usb as the location.) restart your computer while holding down the option key.

Method 1. How to Make an External Hard Drive Bootable with EaseUS Todo Backup

Rufus is one of the all rounder boot USB maker tool for for Windows. It can make bootable USB from almost any OS installation ISO file, including Linux. Actually using this software is damn simple, we just have to select few options and choose the proper ISO file, and that's all. To create windows 10 bootable USB with Rufus, follow the steps below.

Applies to:Windows 10/8.1/8/7/Vista/XP (32-bit and 64-bit)

The simplest and quickest way to make an external hard drive bootable is to use the Windows backup software - EaseUS Todo Backup. EaseUS Todo Backup is recognized as the best system backup software as well as disk/partition clone utility that includes a highlighted feature called 'Create Portable Windows USB drive'. It's available in the 'System Clone' function. The software will clone all system files, boot files and other personalized data files to the target drive. Simply prepare your external hard drive in which you're going to make bootable, and follow the video tutorial or detailed steps below to make an external hard drive bootable in Windows 10 or other supportable OS.

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Video tutorial:

Detailed guide:

Step 1. Connect the external hard drive to your computer and make Windows recognize the drive. Now launch EaseUS Todo Backup and click 'System Clone'.

Step 2. The software has chosen the entire Windows 10 system partition and boot partition by default, so you just choose the external hard drive as the destination drive.

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In 'Advanced options', there are three extra Windows 10 system clone features for you to choose from.

Optimize for SSD: tick this option if the destination hard disk is a Solid State Drive.

Sector by sector clone: tick this option if you wish to clone everything from the source disk including the blank space.

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Create a portable Windows USB drive: tick this option so that the cloned external hard disk is able to boot normally.

Step 3. Click 'Proceed' to immediately clone Windows 10 to an external hard drive.

You should now create your own bootable hard drive with EaseUS Todo Backup software. After it's done, you can boot a computer from the external hard drive:

• Connect the external hard drive to the computer
• Restart the computer and press 'F2' or 'Del' to enter BIOS settings
• In the Boot option, select the external hard drive as the new boot drive and save all the changes.
• Exit BIOS and restart the computer, you should be able to see Windows 10 running on your new disk without any problem

In addition to being a bootable HDD/SSD/USB creator, EaseUS Todo Backup also works well in backing up or cloning hard drives, SSD, and external storage devices. With it, you can do things like migrating Windows 10 to SSD, backing up and restoring your computer hard drive, partition, files, and Outlook emails. Since data loss happens on a daily basis, it's really a wise choice to equip your computer with such backup software.

Method 2. Make an External Hard Drive Bootable with CMD

Applies To: Windows 10/8/7

Windows Command Prompt can also be useful methods to create a bootable external hard drive in Windows 10, 8 or 7. But compared with method 1, this solution is more complex and is likely to cause a boot failure. Be cautious during this process.

1. Format the external hard drive

To format a drive using cmd via Command Prompt, follow the diskpart commands below carefully. Try your best to avoid any mistakes.

Step 1. Type cmd in the search box, you can get the best match called Command Prompt. Right-click on it and choose 'Run as administrator'.

Step 2. On the Command Prompt black window, enter the following commands in the same order here:

• X is the number corresponding to your disk. You have to replace it with the corresponding letter from your own system.
• Press 'Enter', every time you enter your command

diskpart
list disk
select disk X
clean
create partition primary
format fs=fat32
assign
exit

If everything goes well, this is how your cmd screen will look like

2. Copy the Windows 10 installer files

Step1. Insert your Windows DVD into the optical drive. To open 'dism.exe' in CMD, open Command Prompt Admin (Windows + X), enter the command in the following:

g:
cd boot
G:bootbootsect /nt60 d:

• 'g' is your DVD drive letter
• 'd' is your external drive letter

Step 2. Copy all files from the Windows CD to the drive using xcopy by entering the command in the following:

cd
G:xcopy g:*.* /s/h/f d:

All those commands are used to make your external hard drive bootable. Select the bootable drive at the Windows startup, it will boot Windows immediately. If you receive a message says: 'Could not open the BCD template store. Status = [c000000f]', try the following commands to repair console to rebuild BCD or, you can watch the video to fix your boot problems (BCD problems are included).

attrib c:bootbcd –h –r –s
del c:bootbcd
bootrec /rebuildbcd

Method 3. Install Windows 10/8 on External Hard Drive with Windows Built-in Feature

Applies To: Windows 10 Enterprise/Education/Pro and Windows 8/8.1 Enterprise

In Windows 10 Enterprise/Education/Pro and Windows 8/8.1 Enterprise, there is a built-in feature that enables you to create a Windows To Go workspace by creating an imaged version of Windows on Windows-compatible external hard drives. However, unlike EaseUS Todo Backup that is available for all Windows versions. This feature is only accessible for Windows 10 Enterprise/Education/Pro and Windows 8/8.1 Enterprise users and only certified USB drives can be made bootable.

Requirements for USB Drives:

• Has high random read/write speeds and can run Windows workloads smoothly
• Has been tuned to ensure they boot and run on hardware certified for use with Windows 7 and later
• Is backed with manufacturer warranties and should continue operating under normal usage

If you are using the right Windows version and have a certified external hard drive, you can make the external hard drive bootable. (This process will format your external hard drive, back up your external hard drive in advance.)

Step 1. Download the related installation ISO file from Microsoft and connect the hard drive to your computer.

Step 2. Go to 'Control Panel' and find 'Windows To Go'.

Step 3. Choose the external hard drive and click 'Next'.

Step 4. Click 'Add search location' to search for the ISO file.

Step 5. Select the ISO file to make the external hard drive bootable.

Step 6. Choose whether to use BitLocker or not. If you do, be sure you won't forget the password.

Step 7. Click 'Create' to confirm. (Windows will format your external hard drive during the process. If there is any data you want to recover, learn how to recover data from the external hard drive here.)

Step 8. Wait for the process to finish. When it's done, a bootable external hard drive is successfully created.

To Sum Up

Three methods have been used to make the external hard drive bootable, which offers you different choices. Method 1 clones the system to your external disk by means of system cloning. Method 2 copies the startup file on the CD to the external disk by means of the command line. Method 3 uses Windows 10 built-in features. But using Windows 10 built-in features not only has several limitations but also may cause data loss. So if you want a simple and safe solution, choose Method 1. If you have a good knowledge base, three methods are applicable. Br the way, if your drive fails to boot, you can always refer to the video in method 2 to fix the boot problem.

How can I make a bootable Windows installation USB on Mac OS X? After upgrading to macOS Mojave, you may find that Boot Camp Assistant is no longer supported and thus creating a bootable USB turns out to be a little bit challenging. In this tutorial we’ll show you how to create Windows 10 bootable USB from ISO on Mac, by using the Terminal or third-party software like UNetbottin.

Method 1: Create Windows 10 Bootable USB on Mac Using UNetbottin

UNetbootin is a free, open source utility that allows you to create bootable USB drives on Windows, Linux, and Mac OS X. If you’ve downloaded Windows 10 ISO image, here is how you can create a bootable Windows installer USB on Mac using UNetbootin.

1. Plug a USB drive into your Mac and open Disk Utility. Select your USB drive from the left panel and click on Info button. Note down the device name since we will need that later.
2. Next, download and launch the UNetbottin utility. Select the “Diskimage” radio button, click “…” to select a bootable ISO image.
3. After locating your Windows 10 ISO file, click on Open.
4. Choose Type as USB Drive and select the device name of your USB drive (you probably would’ve noted it down earlier, so refer to that). Click OK to start installing to the USB drive.
5. This process takes several minutes or longer, depending on the size of your selected ISO image.

Method 2: Create Windows 10 Bootable USB on Mac Using Terminal

Of course, if you prefer not to use third-party software, you can still use the excellent Terminal app, which is a little bit more involved, but no additional software needs to be installed. Follow these steps:

1. After connecting a USB drive to your Mac, open a Terminal window and type diskutil list to display all the disks attached to your machine. You have to figure out the disk identifier of the USB drive you need to format. In my example, my USB drive is mounted as “disk2” and it’s about 32GB.
2. Next, run the following command to format your USB drive and name it “WIN10“, where # is a placeholder for the disk identifier of your USB drive.
   diskutil eraseDisk MS-DOS 'WIN10' GPT disk#
3. Now, mount your Windows 10 ISO image with the command below, assuming it’s saved the Downloads folder. In my case, it is mounted as a volume named “ESD-ISO“.
   hdiutil mount ~/Downloads/your_windows_10_image.iso
4. Finally, run the following command to copy all the files from the mounted ISO to your USB drive.
   cp -rp /Volumes/ESD-ISO/* /Volumes/WIN10/

   This command will take a while, and once it finishes, you can disconnect the mounted ISO with this command:
   hdiutil unmount /Volumes/ESD-ISO

5. Now you should be able to boot from the USB to install Windows 10 on your Mac or Windows machine.

Conclusion

These should be the easiest ways to create a Windows 10 bootable USB from ISO on Mac, without using Boot Camp Assistant. No matter which method you prefer, be sure that you backup any important data on your USB drive, as the procedure of creating bootable USB will delete everything on it.

Bootable Usb Windows 10