To create a bootable El Capitan installer drive, you need the El Capitan installer from the Mac App Store and a Mac-formatted drive that’s big enough to hold the installer and all its data. Once you formatted the USB flash drive to a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip the steps 5 through 9, and continue on step 10.

RECOMMENDED: About a month ago, we talked about 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 Mac OS X.

UPDATE: If you’re looking to prepare macOS Sierra bootable USB, please refer to our new how to guide for step-by-step directions. Even though it’s always a good idea to prepare Mac OS X bootable USB on a computer running Mac OS X only, at times you might come across situations where you have no options but to prepare the bootable media of Mac OS X 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 Mac OS X 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 Mac OS X. If you have the DMG file of Mac OS X 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 Mac OS X on a PC. Mac OS X Bootable USB on Windows Step 1: The first step is to 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.

How can i create a file for dropbox with photos on my mac air free. Step 2: Stick in the USB drive that you want to boot and install Mac OS X from and backup all data from it, if any. The drive will be erased completely during the process of making 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 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. Here, click the “” button under Disk Image to restore to browse to the DMG file of Mac OS X that you want to install using USB and open the same.

Finally, click OK button to begin preparing the bootable USB of Mac OS X 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 Option key, and then select the USB drive to begin installing Mac OS X.