If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required.
Part 2: How to Make Bootable USB Flash Drive from ISO (Mac) Etcher is a great tool to create a bootable drive on computers running Mac OS. There are some initial preparatory steps that you will need to execute before actually creating the boot drive from your ISO file. In this example, we will show you how to create an Ubuntu boot drive on Mac OS. Starting with TransMac, you may have tried to create bootable USB on Windows for your macOS Mojave using TransMac. Thus, It might have not worked because It can be complicated. To create a bootable flash drive on Window, we have to first install macOS Mojave on Windows.
This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant.
We'll show you to create a bootable USB flash drive with the Windows 10 installer from a Mac. It's easier than you think, thanks to the built-in Boot Camp Assistant from Apple. First, you need to download the Windows 10 ISO file. Go to the download page and select the proper edition of Windows 10 in the dropdown menu.
Method #1: Create Windows 10 Bootable USB/DVD on Mac Using Disk Utility Instead of trying out with an external agent, it would be better to make use of the in-built application of Mac, called Disk Utility to burn the ISO image files on disk to make them bootable.
TransMac - Make DMG File Bootable USB on Windows. This is a fairly robust application for creating bootable USB on Windows from a DMG file. However, there's a preparatory step to be executed before you can create the bootable USB drive. The typical disk partition used is MBR, but you will need to do a partition with GPT for this to work.
These instructions will also work for Windows users, who are running Mac OS X on a virtual machine and need to upgrade to the latest version. For instance, to OS X Yosemite.
Things to know before proceeding
Before you dive into this guide, you’ll need a few things:
A broken Mac computer with Mac OS X.
A trial copy of the TransMac software.
One high quality USB flash drive with 16GB of storage.
A copy of Apple’s macOS (DMG file).
Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.
How to create Mac OS X bootable USB installation media
Before you can use TransMac, you may first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. To do this, you’ll need to use the Diskpart command-line utility on Windows.
Setting up GPT partition
Use these steps to set up a USB drive with a GPT partition:
Open Start on Windows 10.
Search for Command Prompt, right-click the top result and select the Run as Administrator option.
Type the following command to open Diskpart and press Enter:
Type the following command to determine the USB flash drive and press Enter:
Type the following command to select the storage and press Enter:
Quick tip: The select disk 1 command as an example, but you have to replace 1 with the number of the flash drive you want to use.
Type the following commands to delete everything from the USB thumb drive and press Enter:
Type the following command to convert the drive into a GPT partition and press Enter:
Type the following command to select the new partition and press Enter:
After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.
Creating USB install media
Use these steps to create a bootable media to install Mac OS X:
Download and install a copy of TransMac.
Quick note: TransMac is a paid software, but it has a 15-day trial solution, that give us more than enough time to move the DMG files to the USB drive from Windows. (If you want to support the developer, you can purchase the full version.)
Insert the USB drive that you’ll use to fix your installation of OS X. (Remember that all the data in the USB will be erased. Make sure you take off any important documents.)
Right-click the TransMac software icon and Run as administrator. (You’ll be prompted to Enter Key or Run, because we’ll be using it once, click the Run option.)
On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option.
In the warning dialog box, click the Yes button.
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.
Now, you’ll have to wait a long time. No kidding. It could take one or two hours to complete the process depending on your computer and other variables.
Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, holding down the Option key, and select the USB you just created to reinstall Mac OS X.
If you’re having issues trying to create a bootable media, you can get a USB flash drive that comes with Mac OSX ready to install.
macOS flash drive | See at Amazon
OS X 10.12 Sierra flash drive | See at Amazon
macOS Sierra flash drive | See at eBay
Make Bootable Linux Usb For Mac On Windows
Update September 23, 2019: This guide has been revised to make sure it includes the latest changes.
Weekly Digest: Windows 10 previews, Surface Laptop 3, tech tips
How to clone a Windows 10 installation to a new drive using ClonezillaAppleDifficulty level: IntermediateHow-ToOS XWindows
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For You
We previously showed you how to create a Windows 10 USB installation media when performing a clean install of Windows 10, but there might be an instance where the only machine you have available is a Mac. We'll show you to create a bootable USB flash drive with the Windows 10 installer from a Mac. It's easier than you think, thanks to the built-in Boot Camp Assistant from Apple.
Download Windows 10 Disc Image
First, you need to download the Windows 10 ISO file. Go to the download page and select the proper edition of Windows 10 in the dropdown menu. If you don't know what K, KN, or Single Language edition stands for, just select Windows 10 in the list.
Create USB installer with Boot Camp Assistant
Create Boot Usb For Mac On Windows
After downloading the ISO file, you'll need to use Boot Camp Assistant to move it to a bootable USB drive.
Insert a USB flash drive to your Mac. Make sure it's at least 8GB, which is usually marked on the USB stick. You can also check by right-clicking the USB drive on your desktop and clicking Get Info. Check if the number next to Capacity is at least 8GB. All the files in the drive will be deleted, so make sure there are no important documents inside.
Open Boot Camp Assistant. The easiest way to launch it is through Spotlight Search, which you can bring up by pressing Command and Spacebar. Press Enter to launch the app.
Check the box for 'Create a Windows 7 or later version install disk' and deselect 'Install Windows 7 or later version.'
Click Continue to proceed.
Boot Camp Assistant will automatically locate the ISO file from your downloads folder, but make sure it is the right file. Click the 'Choose…' button and locate the ISO file. Make sure the destination disk is the USB thumb drive you've inserted.
Click Continue. It can take about 20 minutes to format and set up the USB installer on the Mac.
When Boot Camp Assistant is done, the USB drive will be renamed to WININSTALL. Click Quit to close the app and then Eject the USB drive.
That's it! You now have a bootable USB drive with the Windows 10 installer. You can use it to configure new Windows 10 PCs from scratch. We told you it was easy!
Have you tried creating a Windows 10 installer USB drive from a Mac before? Did you encounter any issues? Let us know your experience in the comments!
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