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. 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.
To get started with you require a USB drive with at least 8GB storage (16GB recommended). Then you need a working Mac OS ISO or DMG Installation Image. You can download it from the Apps Store or you can find Mac OS Image at ISORIVER.
There are 2 Methods to Create a Bootable USB drive of Mac OS on your Windows PC.
Have read your article on how to get mac OS onto a blank SSL (in my case in a 2011 Mac mini that won’t boot into Recovery mode.) with an installer USB drive. Unfortunately, you do not address the problem of being unable to download the High Sierra installer from the App Store to a working Mac running under Catalina. Finally, if the USB drive won't boot, you may need to enable 'legacy boot support' in your BIOS, if you have such an option. Summary Here, I've covered how to create a bootable USB drive for installing Windows 10 using a Mac and an ISO image downloaded from Microsoft. This Mac OS 9.2.2 'boot kit' was made by @that-ben and makes the process of booting (and installing) Mac OS 9 on any G3 and most G4's from an USB stick a little bit easier, because not all the Mac OS 9 install CD images can be used to boot a Mac from an unlocked volume (such as from an USB stick or hard drive).
If you want to use your USB stick with an Apple Mac, you will need to restart or power-on the Mac with the USB stick inserted while the Option/alt (⌥) key is pressed. This will launch Apple’s ‘Startup Manager’ which shows bootable devices connected to the machine. It took around 5–6 mins to complete on Mac Mini 2012 with SSD and 10GB RAM copying to a USB 3.0 drive. The process completes. Now eject the USB drive before removing it from the Mac. The bootable USB drive is ready to use How to Boot from the Installer Drive Step 1. Plug in the external USB drive you just created. Restart the Mac.
Method 1: Using TransMac
- Download TransMac’s latest version for Windows from this link.
- Connect your USB drive
- Right Click on your USB drive option in TransMac and select Format Disk for Mac
- After that, right-click the USB Drive and select Restore with Disk Image
- Point to your Mac OS .dmg or .iso file by clicking the add button.
- After that TransMac will create bootable Mac OS USB within few minutes.
- Then you can insert it into your Mac, hold down the option key while turn on and boot your system with this USB.
Method 2: Using PowerISO
Another disk image utility that you can use is PowerISO. It can be used for burning both ISO files and DMG files to USB to create a bootable drive. Follow the steps below to Create a Bootable Mac OS USB on Windows PC.
Step 1: Firstly Download PowerISO and install it in your Windows PC. Launch the app and insert a USB drive into your computer.
![Create a usb boot drive for mac Create a usb boot drive for mac](/uploads/1/1/8/7/118722033/435795530.jpg)
Create Bootable Usb Installer Mac
![Usb Boot Drive For Mac Usb Boot Drive For Mac](https://static.makeuseof.com/wp-content/uploads/2019/03/boot-mac-usb-670x335.jpg)
Step 2: Import the DMG / ISO file directly by clicking on ‘Burn’ in the toolbar.
Step 3: In the Burn window, select the DMG / ISO file from the Source File section.
Make Bootable Usb On Mac
Step 4: You can modify the settings to adjust burn speed. The default will be set to the maximum, so you can reduce that.
Step 5: You can choose to finalize the disk and verify it. Any errors in the bootable USB will show up at that point.
Step 6: Now click on “Burn” and wait for the progress bar to reach 100%.
After the successful creation of Bootable Mac OS USB, boot your Macbook from this USB drive by clicking the option button during bootup and select this USB drive.
Watch this Video Tutorial
That’s it for the tutorial If you face any issues or had any query then please let us know in the comment section below. You can also send us an email via the contact us page for personalized support.