This is one of the main reasons you should consider making a macOS bootable USB when your device works properly. However, if none of your devices (MacBook, MacBook Air, MacBook Pro, iMac, Mac Pro, or Mac Mini) are not working when you need them the most, you can use a Windows computer to rescue your Apple device. You can use a Windows 11, 10, 8.1, or 7 computer to quickly create a USB bootable installation media to reinstall macOS Ventura, Monterey, Big Sur, or Catalina on your Mac. This guide will teach you the steps to create a macOS bootable USB installation on Windows 10, which you can use to reinstall or upgrade the Apple OS.

Requirements Create macOS bootable USB installation media Create a GPT partition on a USB flash drive

Requirements

Before proceeding, you’ll need the following:

Broken Mac computer running macOS. A trial copy of the TransMac software. One high-quality USB flash drive with 16GB of storage. Copy of macOS (DMG file).

Create macOS bootable USB installation media

To create a bootable USB drive with macOS, use these steps: Once you complete the steps, you can insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version (Ventura, Monterey, Big Sur, Catalina, or Sierra).

Create a GPT partition on a USB flash drive

If the USB flash drive is not working with TransMac, it could still be a partition problem. In this case, you may need to redo the entire process again. However, this time, you should use the following steps to use the Diskpart command-line utility on Windows 10 to create the appropriate GPT partition, and then follow the above instructions. To create a GPT partition on a removable drive, use these steps: Once you have formatted the USB flash drive with a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip steps 5 through 10 and continue on step 11. In the command, change “4” to the number corresponding to the USB flash drive. After the process is complete, which it’s something that could take up to an hour, connect the USB flash drive and power on your Mac by holding down the Option key, and select the USB drive to begin installing macOS. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.