1. Create Bootable Usb From Iso Windows 7
2. How To Create A Bootable Usb Drive
3. Create A Bootable Usb Drive From A Dmg File On Windows 7
4. Create A Bootable Usb Drive From A Dmg File On Windows 10
5. Make Bootable Usb From Dmg

About a month ago, we talked about creating a bootable USB of macOS on a Mac with the help of a free app called DiskMaker X. The app is very easy-to-use and is updated to support the newest version of macOS.

This guide covers the verbatim copying of a DMG image to a USB thumb drive using only Linux (no need to find a Mac). If the DMG was intended to be bootable then the resulting USB will be bootable. Convert to ISO. Linux doesn’t much care for DMG files. Sure, it’ll play nice with them. But we don’t just want to play nice. The third software which is to create a Bootable macOS Mojave USB Installer drive on Windows is TransMac. TransMac is software which is created for Windows platforms to create bootable USB or Format a USB for mac. Basically, TransMac is not free but it allows you to create bootable USB for mac for 15 days for free.

UPDATE: If you’re looking to prepare macOS Sierra or Mojave bootable USB, please refer to our new how to create macOS Sierra bootable USB from Windows guide for step-by-step directions.

Even though it’s always a good idea to prepare macOS bootable USB on a computer running macOS only, at times you might come across situations where you have no options but prepare the bootable media of macOS on a Windows PC. Take, for instance, your Mac machine is unbootable and you’re unable to fix the issue or re-install the OS using the Recovery Assistant. Or maybe, the Recovery Assistant isn’t appearing when you hold down the Option key.

Mac users who don’t have access to a bootable Mac machine to prepare the bootable USB of macOS can take the help of a computer running Windows operating system for the job. The only thing is that you must have the DMG file of macOS.

If you have the DMG file of macOS and a USB flash drive of size greater than 16 GB, it’s easy to prepare the Mac OS X bootable USB on a Windows PC. Simply follow the given below instructions to prepare your bootable USB of macOS on a PC.

Create macOS Bootable USB on Windows 10

NOTE: The guide was originally written to prepare Yosemite bootable USB but the guide is compatible with the latest macOS Mojave as well.

Step 1: The first step is to download TransMac software and install the same on a PC running Windows operating system. Even though TransMac is a paid software, the 15-day trial copy is good enough to prepare the bootable USB of Mac on your PC.

Step 2: Stick in the USB drive that you want to boot and install macOS from and backup all data from it, if any. The drive will be erased completely during the process of making a bootable USB.

Step 3: Launch TransMac software with admin rights by right-clicking on TransMac icon on the desktop and then clicking Run as administrator. Upon launching the TransMac software, the Trial reminder dialog will appear. Simply click Run button to continue using the software.

Step 4: Once TransMac is launched, in the left pane, right-click on the USB drive that you would like to make as bootable, right-click on the same, and then click Restore with Disk Image option.

Click the Yes button when you see the warning message on your screen that the drive will be erased.

Step 5: Next, Restore Disk Image to Drive dialog will appear on the screen. Dmg production. Here, click the “…” button under Disk Image to restore to browse to the DMG file of macOS that you want to install using USB and open the same.

Finally, click OK button to begin preparing the bootable USB of macOS on your Windows PC.

Step 6: The TransMac tool, in our test, took a little over 90 minutes to prepare the bootable USB.

Once done, Restore Complete message will pop up on the screen. Close TransMac and safely remove the USB.

Step 7: Finally, connect the bootable USB to your Mac, turn on your Mac, hold down the Option key, and then select the USB drive to begin installing macOS. Good luck!

If your Mac suddenly refuses to boot up properly, you might need bootable macOS install USB to make repairs. But how do you create such a disk if all you're left with is a Windows 10 computer? Fortunately, there's a great tool that you can use for free to create bootable macOS media on a USB drive in a Windows 10 environment. This article shows you how to download a macOS DMG file, format a USB drive using a GUID Partition Table, burn the DMG to the drive and boot your Mac from the USB. All the steps except the last one are done on a Windows 10 machine.

Part 1: Download macOS or Mac OS X DMG File

Create Bootable Usb From Iso Windows 7

The first step is to get the DMG disk image file for the version of macOS that you want. You can get a copy of the latest macOS version from Apple download portal or App Store here. There are also several other direct download sites that offer various versions of Mac OS X in DMG format rather than the standard APP format that runs on Mac. Since you're working in a Windows environment, you need the DMG rather than the APP file.

Part 2: Format USB Drive to GPT

Mostly, the USB drive was formmated to FAT32 in default when being shipped out from the factory. However, FAT32 can be only used for installing OS with legacy BISO, which doesn't work for macOS. So the next step is to format your USB drive in the GPT partition style in order to burn installation files to the desired USB drive. You can do this in Command Prompt as admin. In elevated Command Prompt (Ctrl+Shift+Enter), input the following series of commands followed by Enter after each line:
Diskpart
List disk
Select Disk X (X stands for the USB drive name that appears after the previous command)
Clean
Convert GPT
Create partition primary

Part 3: Create Bootable macOS USB from Windows 10

You have now formatted the partition of USB drive. It's time to download TransMac for Windows. Although this is a premium software, you can use the initial free trial period to create a bootable macOS USB drive on Windows 10. After installing the application, follow the sequence of steps shown below:

Step 1: Right-click the icon and select Run as Administrator from the contextual menu. Choose Run when prompted.

How To Create A Bootable Usb Drive

Step 2: Insert your formatted USB drive, and you will be able to see it in the TransMac software on the left panel.

Step 3: Right-click the USB and select Restore with Disk Image in the contextual menu. Click Yes in the warning popup.

Create A Bootable Usb Drive From A Dmg File On Windows 7

Step 4: You will see a window that says Restore Disk Image to Drive. Here, select your DMG file in the dropdown menu and click OK.

Depending on the system configuration, this can take anywhere from a few minutes to a couple of hours. Once the progress bar is at 100%, a bootable USB is ready.

Part 4: Boot macOS Install USB on Mac

Now remove the USB drive and insert it into the Mac computer. To boot from the disk, you need to hold down the option key when you hear the boot chime. This will take you to the Startup Disk Manager, where you should be able to see the USB drive. It might have a different name, but as long as it is bootable, you'll be able to see it there. Once you select it, the computer will boot from the disk and the macOS installation will begin.

Create A Bootable Usb Drive From A Dmg File On Windows 10

Conclusion:

Make Bootable Usb From Dmg

The whole process might look a bit complicated if this is your first time, but just follow the instructions in this article and you should be fine. That being said, you need to be careful when downloading the DMG file and formatting your USB drive. If you don't do these two steps correctly, the output drive from the TransMac software won't be bootable, which means you can't install macOS using it, and you may need to do the whole thing over again.