Method 1: Win32DiskImager
Win32DiskImager is a free and open-source tool that can write disk images to USB drives. You can use it to create a bootable USB drive for macOS Sierra with Windows by following these steps:
Download the macOS Sierra image file from [here]. This is a compressed file that contains the macOS Sierra installer and a Clover bootloader. You will need to extract it with a tool like 7-Zip or WinRAR.
Download and install Win32DiskImager from [here]. This is the tool that will write the macOS Sierra image file to the USB drive.
Insert a USB drive of at least 16 GB into your Windows PC. Make sure you backup any important data on the USB drive, as it will be erased during the process.
Launch Win32DiskImager and select the USB drive from the device list. Then click on the folder icon and browse to the location of the extracted macOS Sierra image file. Click on Open to select it.
Click on Write to start writing the image file to the USB drive. This may take some time depending on the speed of your USB drive and PC. When it is done, you will see a message saying "Write Successful".
Eject the USB drive from your Windows PC and insert it into your Mac. Restart your Mac and hold down the Option key to enter the boot menu. Select the USB drive as the boot device and press Enter.
You will see the Clover bootloader screen. Select Boot macOS Install from Install macOS Sierra and press Enter. This will start the macOS Sierra installation process. Follow the on-screen instructions to complete the installation.
Method 2: TransMac
TransMac is a paid software that can create and manage disk images for Mac OS X. You can use it to create a bootable USB drive for macOS Sierra with Windows by following these steps:
Download and install TransMac from [here]. This is a 15-day trial version that allows you to create one bootable USB drive for free.
Download the macOS Sierra DMG file from [here]. This is an official installer file from Apple that contains the macOS Sierra installer app.
Insert a USB drive of at least 16 GB into your Windows PC. Make sure you backup any important data on the USB drive, as it will be erased during the process.
Run TransMac as administrator and agree to the license terms. Then right-click on the USB drive from the left panel and select Format Disk for Mac. This will format the USB drive as Mac OS Extended (Journaled).
Right-click on the USB drive again and select Restore with Disk Image. Then click on Yes to confirm. Browse to the location of the downloaded macOS Sierra DMG file and click on Open to select it.
Click on Yes again to start restoring the DMG file to the USB drive. This may take some time depending on the speed of your USB drive and PC. When it is done, you will see a message saying "Restore Completed".
Eject the USB drive from your Windows PC and insert it into your Mac. Restart your Mac and hold down the Option key to enter the boot menu. Select the USB drive as the boot device and press Enter.
You will see the macOS Sierra installer screen. Follow the on-screen instructions to complete the installation.
Conclusion
Creating a bootable USB drive for macOS Sierra with Windows is not a difficult task, but it requires some tools and steps. You can use either Win32DiskImager or TransMac to create a bootable USB drive for macOS Sierra with Windows. Both methods work well, but Win32DiskImager is free and open-source, while TransMac is paid and proprietary. You can choose the one that suits your needs and preferences.
A bootable USB drive for macOS Sierra can help you install, upgrade, or troubleshoot your Mac. It can also be used to install macOS Sierra on multiple Macs without downloading the installer each time. However, you should always backup your data before using a bootable USB drive, as it will erase everything on the target volume.
We hope this article has helped you learn how to create a bootable USB drive for macOS Sierra with Windows. If you have any questions or suggestions, please feel free to leave a comment below.
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