Then you can insert it into your Mac, hold down the option key while turn on and boot your system with this USB.After that TransMac will create bootable Mac OS USB within few minutes. Click on the Purchases tab, locate macOS Sierra and click the Download button.After that, right-click the USB Drive and select Restore with Disk Image.Connect the HighSierra USB drive to your Mac. To create a bootable macOS High Sierra USB installer: 1.

Once you have the external drive or USB and the High Sierra installer ready, use the Terminal app to create a boot disk.

Right Click on your USB drive option in TransMac and select Format Disk for Mac Create a bootable High Sierra installer with Terminal.

Download TransMac’s latest version for Windows from this link.

There are 2 Methods to Create a Bootable USB drive of Mac OS on your Windows PC. Go to Finder > Applications > Utilities > Disk Utility Select your flash drive from the External Column and click.

You can download it from the Apps Store or you can find Mac OS Image at ISORIVER. USB Flash Drive with at least 8 GB space.

Then you need a working Mac OS ISO or DMG Installation Image. To get started with you require a USB drive with at least 8GB storage (16GB recommended). Reinstalling Mac OS is a time-consuming process and requires a lot of patience that’s why recommend doing this process in your free time or weekends. Macbooks or iMacs hardly require reinstallation of their Mac OS, but when they do then it’s a fairly difficult process especially if your secondary computer is Windows.

Creating bootable usb mac os sierra