Table of Contents
Requirements
- An 8-16GB or larger USB stick/flash drive.
- Microsoft Windows XP or later.
- baleanEtcher, they are free and open-source USB stick writing tool.
- A macOS dmg file.
Create a bootable macOS USB stick on Windows
1. Download a dmg file from this link. In this folder, you can download the installer from OSX Lion to macOS Monterey.
![Bg2331](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2331.png)
2. Download the balenaEtcher from their website. You just need download the portable version to run it once instead of installing that tool into your computer.
![Bg2322](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2322.png)
3. Open downloaded file to run balenaEtcher. Click on Flash from the file then browse to the downloaded dmg file in the first step.
![Bg2324](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2324.png)
4. Click on the Continue button to ignore this warning.
![Bg2332](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2332.png)
5. Now, select your USB stick to create a bootable drive.
Note
Note: You need an 16GB USB stick to create a bootable drive of Catalina, BigSur and Monterey.
![Bg2333](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2333.png)
Finally, click on the button to start creating a macOS install on an USB stick. It could take a while.
![Bg2334](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2334.png)
![Bg2335](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2335.png)
When balenaEtcher has finished flashing the USB device, you can plug the USB stick into a Mac then do a clean install macOS.
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Install new macOS from a USB stick
Plug the USB stick into your Mac then boot you Mac from USB depending on the Mac’s CPU:
Boot from installer on Apple silicon
- Turn on the Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes.
- Select the volume containing the bootable installer, then click Continue. When the macOS installer opens, follow the onscreen installation instructions.
Boot from installer on Intel processor
- Turn on your Mac, then immediately press and hold the Option (Alt) key.
- Release the Option key when you see a dark screen showing your bootable volumes.
- Select the volume containing the bootable installer. Then click the onscreen arrow or press Return.
![Bg2336](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2336.png)
![Bg2337](https://bonguides-1e199.kxcdn.com/wp-content/uploads/2022/11/bg2337.png)
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