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I will show you how to download macOS Beta, and then create a bootable macOS Monterey USB Installer Flash Disk!

  1. Jan 04, 2021 How To Create macOS Catalina Bootable USB on Windows: Step by Step This is a 4 step process, so please make sure you do not skip any part of it and eventually get frustrated with the failure. I have also shared a complete video tutorial on How To Create macOS Catalina Bootable USB on Windows: Step by Step, you can find the video at the end of.
  2. Sep 30, 2015 Having a bootable hard drive or USB flash drive is a handy troubleshooting tool. Because of this, I recommend creating your own bootable El Capitan (OS X 10.11) installer drive on an external.
  3. El Capitan 10.11.6 is now released as the latest version of Download El Capitan. For OS X El Capitan users this update is recommended. The upgrade to OS X El Capitan v10.11.6 enhances your Mac's reliability, performance and protection and is advised for all users. Solves a problem that can prevent parental control accounts from saving settings.
  4. OS X El Capitan is finally here, and if you're looking to install Apple's new desktop OS fresh from the ground up, then you'll be needing a bootable USB flash drive to get started with the process.

It installs an app named Install OS X El Capitan into your Applications folder. A bootable installer doesn't. Aug 21, 2019 For a clean install, at first, you will need a bootable version of OS X El Capitan installer. After getting a bootable drive or device follow the steps to boot-Insert the device containing os X El Capitan installer.

If you want to install and test macOS Monterey, creating macOS 12 USB installer is the way to go! This will allow you to quickly install the OS on Intel and M1 Macs.

Step 1 – Enroll in Apple Developer Program

I’ll show you how to enroll into macOS Monterey Beta program. 3 different ways are listed below.

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1. developer.apple.com = Developer Beta Profile – $99

2. beta.apple.com = Public Beta Profile – Free

3. Seedutil Binary = Pick between Public, Developer & Customer Seed – Free

Step 2 – Download macOS 12 Beta

You can go over to my macOS 12 Full Installer Database to grab the latest InstallAssistant.pkg file

Step 3 – How to create macOS Monterey Beta USB Installer

I have the steps listed below but if you want to watch a short video on the process, here it is.

Step 3 – Install InstallAssistant.pkg

You will now see InstallAssistant.pkg in your Downloads folder. Double click to install it. This package puts the “macOS 12 Install app” into your Applications folder.

Step 4 Erase & Format your USB Flash Drive

Now that you have the macOS 12 Beta app in your /Applications folder you can create your USB Installer! The USB Flash Drive needs to be at least 16GB because the installer is about 12-14GB.

Plug in your USB Flash Drive

Open up Disk Utility and erase your USB Flash drive. Be sure to use Mac OS Extended (Journaled) format.

Step 5 Install macOS 12 Beta to your USB Drive

Open up the Terminal.app from /Applications/Utilities

2. type in Sudo then space

3. Drag your macOS 12 installer app to the terminal window

4. the full path is sudo /Applications/Install macOS 12 Beta.app/Contents/Resources/createinstallmedia

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5. Add the –volume option then drag your USB Flash Drive to the terminal window.

The final full path will look like this sudo /Applications/Install macOS 12 Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

Hit enter and then enter your account password.

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From here the files will start to copy to your USB flash Drive. The total time should be about 5-10 min depending on your USB Flash drive speed.

macOS Monterey USB installer

If your Mac suddenly refuses to boot up properly, you might need a bootable macOS USB installer 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

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.

macOS DMG Download Link:

Part 2: Easily Create a Bootable macOS USB from Windows 10/8/7 PC

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

Updates (Dec 8, 2020): The latest version of UUByte DMG Editor is able to format the USB automatically.

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

Step 2: Insert your formatted USB drive, and click 'Burn' tab on the main screen.

Step 3: Click 'Browse' button to import macOS dmg file into the program. And select the USB drive name from the second row. You can also set a volume labe for that USB drive.

Step 4: Click 'Burn' button at the bottom to start the process. You will see a progress bar and wait around 10 minutes to get it done.

Step 5: Once the progress bar is at 100%, a bootable macOS USB is ready. After that, you can use that USB drive for installing macOS.

This is one of the easiest way to create a bootable macOS USB on a Windows PC. The steps are simple and instructions are pretty clear.

Part 3: Format USB Drive to GPT If Failed

If the USB drive created in above step was not seen as a bootable device on your Mac, then you need to take an addtional step before burning. That's formatting the USB 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 4: Boot Mac from macOS USB Drive for Installation

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.

Troubleshooting

Flashing Error: You might receive a flashing error message at the end of burning process. Please don'y worry and ignore this error. The USB becomes a bootable disk and you can use it to install macOS even this error pops up.

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About Official EI Capitan DMG: There has a serious bug in the official release of OS X El Capitan, which contains .pkg installer only. The burning process will fail for sure. Please use this modified EI Capitan DMG file instead, which was approved a good option.

Registration Failed: Please make sure the computer is connected to Internet and no proxy or VPB is running during registration. If the problem still exists, please send an email to support team asking for a new code.

Conclusion

Os El Capitan Bootable Usb Installer

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 UUByte DMG Editor software won't be bootable, which means you can't install macOS from that USB drive, and you may need to do the whole thing over again.