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.
The macOS installer file is large with approximate size of 6 to 10GB depending upon the. Reasons for Mac Boot from USB. Booting the Mac from USB in a way gives the power back to the. As the name suggests, Universal USB Installer is one of the best bootable USB software that caters to the need of providing a versatile platform to create a bootable drive of any type of OS. Be it Windows, Linux or even Mac, Universal USB Installer justifies its name and supports all types of operating systems. Apple articles, stories, news and information. 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 whilethe Option/alt(⌥)key is pressed. This will launch Apple’s ‘Startup Manager’ which shows bootable devices connected to the machine. Your USB stick should appear as gold/yellow and labelled ‘EFI Boot’.
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.
Method 1: Using TransMac
Boot From Usb Drive Mac
- 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.
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.
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.
![Booting Usb For Mac Booting Usb For Mac](/uploads/1/2/6/4/126427057/468456570.jpg)
To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. Keep holding until the described behavior occurs.
- Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. If your Mac is using a firmware password, you're prompted to enter the password.
- Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes. If your Mac is using a firmware password, you're prompted to enter the password.
- Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
- Shift (⇧): Start up in safe mode. Disabled when using a firmware password.
- D: Start up to the Apple Diagnostics utility. Or use Option-Dto start up to this utility over the Internet. Disabled when using a firmware password.
- N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, hold down Option-N instead. Disabled when using a firmware password.
- Command-S: Start up in single-user mode. Disabled in macOS Mojave or later, or when using a firmware password.
- T: Start up in target disk mode. Disabled when using a firmware password.
- Command-V: Start up in verbose mode. Disabled when using a firmware password.
- Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.
If a key combination doesn't work
If a key combination doesn't work at startup, one of these these solutions might help:
- Be sure to press and hold all keys in the combination together, not one at a time.
- Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up.
- Wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
- If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac.
- If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.
Remember that some key combinations are disabled when your Mac is using a firmware password.
Learn more
Bootable Usb For Mac Os On Windows
- Learn what to do if your Mac doesn't turn on.
- Learn about Mac keyboard shortcuts that you can use after your Mac has started up.