It is a good way to create macOS bootable USB on Windows 10/11 when your Mac fails to boot. Don’t know how to make a bootable USB drive for Mac on Windows? Thankfully, MiniTool gives you detailed guidance in this post. Let’s get started.

Some of you choose a Mac to use since it is reliable and secure. However, you may run into bootable issues and the Mac fails to run to the desktop. No matter you are running Windows 11/10 or macOS, it’s a matter of time before the device cannot start up.

If your Mac refuses to boot up due to file corruption, update issue, and other software issues, you can make a bootable medium to repair the Mac. So, how to create macOS bootable USB drive? You can choose to do this thing on a Windows PC by following the guide below.

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How to Create Mac Bootable USB from Windows

Note that the operations below apply to many macOS versions, including macOS Ventura, Monterey, Big Sur, Catalina, and Mojave.

Part 1: What to Do Before Creating Bootable USB for Mac on Windows

Before you do, some things should be prepared.

#1. Prepare a USB Drive

Prepare a USB flash drive that has at least 16GB of storage space. Besides, make sure there is no important data saved to this drive. If yes, back up the crucial files to another safe place. You can do this thing via copy & paste or use a piece of free backup software like MiniTool ShadowMaker.

MiniTool ShadowMaker TrialClick to Download100%Clean & Safe

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#2. Download Mac DMG File

A DMG file is a type of disk image in macOS that is used to store compressed software installers, just like an ISO file in Windows. To create macOS bootable USB, a .dmg file is required. So, how to download a copy of Mac (.dmg)? Follow the help document from Apple – How to download macOS, then you can get a .dmg file of macOS.

#3. Download TransMac or UUByte

When searching for “make bootable USB Mac Windows 10” or “create a macOS bootable USB on Windows” online via Google Chrome, you may see the related searches – UUByte create macOS bootable USB and TransMac bootable USB.

UUByte and TransMac are third-party tools that can be used to make a macOS bootable USB drive. Just download one of them and install it on your PC. Here, we take TransMac as an example. Note that it is a paid software but you can free try it for 15 days. Just get it via https://www.acutesystems.com/scrtm.htm.

Part 2: Create a GPT Partition on USB

Sometimes the USB drive is not bootable due to the partition issue. So, you first need to convert the USB drive to GPT and then run TransMac for a bootable USB drive.

To create a GPT partition on USB, run Command Prompt as an administrator. Then, type diskpart and press Enter. Next, execute the following commands:

list disk

select disk n: n means the drive letter of your USB drive.

clean

convert GPT

create partition primary

convert USB to GPT

Tips:

In addition to Diskpart, you can run MiniTool Partition Wizard to convert disk to GPT.

After everything is ready, let’s see how to create macOS bootable USB now.

Part 3: Make Bootable USB Mac Windows 10/11

How to make a bootable Mac USB on Windows via TransMac? Accomplish it in these steps:

Step 1: Connect your USB flash drive to your Windows PC and launch TransMac as an administrator.

Step 2: Click Run to start a free trial.

Step 3: Right-click on the USB drive and choose Format Disk for Mac. Then, click Yes to confirm. You are asked to name the USB drive and we type macOS.

Step 4: Right-click on the drive and choose Restore with Disk Image.

restore with disk image in TransMac

Step 5: Click Yes, choose the .dmg file you have downloaded, and click OK > Yes. Then, this tool is creating a bootable USB drive.

Now you get the bootable USB drive for Mac on Windows. Eject the drive from the PC and connect it to your Mac. Then, run the macOS from this drive to perform a repair.

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Verdict

It is a simple way to create macOS bootable USB on Windows 11/10. If you need it to fix your Mac, this guide is helpful to you and just follow the given instructions for a Mac bootable USB from Windows.

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