In the warning dialog box, click the Yes button. On the left pane, you’ll see all the Windows PC drives listed right-click the USB drive you intend to use to reinstall Apple’s OS X and select the Restore with Disk Image option. (You’ll be prompted to Enter Key or Run because we’ll be using it once, click the Run option.) Right-click the TransMac software icon and Run as administrator. Make sure you take off any important documents.)

(Remember that all the data in the USB will be erased. Insert the USB drive that you’ll use to fix your installation of OS X. (If you want to support the developer, you can purchase the full version.) Quick note: TransMac is a paid software, but it has a 15-day trial solution that gives us more than enough time to move the DMG files to the USB drive from Windows. Type the following command to select the storage and press Enter: select disk 1 Type the following command to determine the USB flash drive and press Enter: list disk Type the following command to open Diskpart and press Enter: diskpart Search for Command Prompt, right-click the top result, and select the Run as Administrator option. Use these steps to set up a USB drive with a GPT partition: To do this, you’ll need to use the Diskpart command-line utility on Windows 10.

Create Mac OS X bootable USB installation mediaīefore using TransMac, you first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. 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. One high-quality USB flash drive with 16GB of storage.Requirementsīefore you dive into this guide, you’ll need a few things: These instructions will also work for Windows users running Mac OS X on a virtual machine and needing to upgrade to the latest version. However, if you find yourself in a scenario where your device (iMac, MacBook Pro, Air, Mac Pro, or Mini) is not responding, and you happen to have a Windows 10 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. This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. 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.

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