A USB bootable software is a computer program that enables the users to create bootable or live USB drives. Essentially, the role of the software in this category is to load the OS in the USB drive and in a manner that can be deployed directly by the BIOS. Sep 14, 2020 A broken Mac computer with Mac OS X. A trial copy of the TransMac software. One high quality USB flash drive with 16GB of storage. A copy of Apple’s macOS (DMG file). Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below. Download Mac OS X Yosemite 10.10.3 latest free latest standalone offline bootable DMG image. The MacOS X Yosemite 10.10 is a very powerful operating system for Macintosh with better stability, security, and compatibility features. Mac OS X Yosemite 10.10.3 Review. Apple’s OS X Yosemite is a very powerful operating system providing support for.

If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required.

This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows 10 device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant.

These instructions will also work for Windows users who are running Mac OS X on a virtual machine and need to upgrade to the latest version. For instance, to OS X Yosemite.

Requirements

Before you dive into this guide, you’ll need a few things:

• A broken Mac computer with Mac OS X.
• A trial copy of the TransMac software.
• One high quality USB flash drive with 16GB of storage.
• A copy of Apple’s macOS (DMG file).

Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.

Create Mac OS X bootable USB installation media

Before you can use TransMac, you first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. To do this, you’ll need to use the Diskpart command-line utility on Windows 10.

Setting up GPT partition

Use these steps to set up a USB drive with a GPT partition:

1. Open Start on Windows 10.

2. Search for Command Prompt, right-click the top result and select the Run as Administrator option.

3. Type the following command to open Diskpart and press Enter:

4. Type the following command to determine the USB flash drive and press Enter:

5. Type the following command to select the storage and press Enter:

   Quick tip: The select disk 1 command as an example, but you have to replace 1 with the number of the flash drive you want to use.

6. Type the following commands to delete everything from the USB thumb drive and press Enter:

7. Type the following command to convert the drive into a GPT partition and press Enter:

8. Type the following command to select the new partition and press Enter:

After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.

Create USB install media

Use these steps to create a bootable media to install Mac OS X:

1. Download and install a copy of TransMac.

   Quick note: TransMac is a paid software, but it has a 15-day trial solution, that give us more than enough time to move the DMG files to the USB drive from Windows. (If you want to support the developer, you can purchase the full version.)

2. Insert the USB drive that you’ll use to fix your installation of OS X. (Remember that all the data in the USB will be erased. Make sure you take off any important documents.)

3. Right-click the TransMac software icon and Run as administrator. (You’ll be prompted to Enter Key or Run, because we’ll be using it once, click the Run option.)

4. On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option.

5. In the warning dialog box, click the Yes button.

6. Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.

   Now, you’ll have to wait a long time. No kidding. It could take one or two hours to complete the process depending on your computer and other variables.

Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, holding down the Option key, and select the USB you just created to reinstall Mac OS X.

Download Mac Os X Mavericks Bootable Usb

If you’re having issues trying to create a bootable media, you can get a USB flash drive that comes with Mac OSX ready to install.

Download Mac Os X Free

In order for you to upgrade to El Capitan with a clean installation of macOS, You need to create a bootable macOS El Capitan USB drive. A bootable installer drive is much more convenient when you’re upgrading a Mac. You can then use an External drive or the secondary volume (USB) to install the macOS using it as a startup disk.

The command-line installation of macOS would come as savvy mainly for the system administrators. You really do not require a bootable installer to upgrade macOS or reinstalling the operating system, It only will be useful when you have multiple computers lying around and you need to download and use the installer each time.

You must also require a USB 3.0 Drive with at least 16 GB of storage and please ensure you have taken a backup of all the files in your USB 3.0 flash drive as this installation will erase and remove all the files from your flash drive.

You can get USB 3.0 from Here

Download macOS XEl Capitan

You can download macOS El Capitan From Here

OR

if you have downloaded already macOS El Capitan directly, then the downloaded macOS itself to the applications folder as an individual app called as “Install macOS El Capitan”. Sometimes it is also possible that the installer opens itself right after downloading it, You need to ensure quitting it without proceeding to go with the installation directly. Also, it is important for you to download the correct version of macOS as per your mac.

How to create a bootable installer for macOS El Capitan

Step 1: Download macOS El Capitan.

Step 2: Once El Capitan is downloaded, You should make sure that you close the installer and Open the finder.

Download Bootable Mac Os

Step 3: In Finder, You need to head over to Application→Install macOS El Capitan right click on install macOS El Capitan and click Show package contents.

Or

If You have downloaded from the link then go to Download→ macOS El Capitan.

Step 4: Head over to open Content→Resources

Step 5: Using Finder another window and Go to Applications and Select Utilities→Terminal

Step 6: Type sudo followed by space

Step 7: Now from the original finder window opened in step 4, drag and drop the createinstallmedia to terminal

Step 8: Type —volume along with space

Step 9: Open Finder and click Go at the top followed by Goto folder menu or by pressing command + shift + g at the same time.

Step 10: Type /Volumes and click go to navigate to the volumes that are connected to your mac

Step 11: You should probably find your connected USB 3.0 Flash drive on your Mac in the Finder window

Step 12: Now Drag the USB 3.0 Flash drive volume to the Terminal window

Create Mac Os Bootable Usb

Step 13: Now press Enter / Return on keyboard

Step 14: Type y so you can continue the progress and Press Enter / Return on the keyboard again.

Download Bootable Mac Os Disk

After the above process, You can also use the USB 3.0 drive to boot into macOS El Capitan installer Once you connect your USB 3.0 flash drive, Then restart your Mac by pressing the Option (⌥) button modestly. Then you may select the macOS El Capitan Installer to get started with the installation.