You can now boot from your new USB drive either by changing the default Startup Disk in System Preferences or by holding down the Option key at boot and selecting the drive to install OS X 10.10 Yosemite on your Mac. Simply follow the onscreen instructions till your OS X Yosemite boot disk is ready. Click “An 8GB USB thumb drive” if you have a single drive to use or “Another kind of disk” to use a partition on a larger external drive. If it doesn’t detect the installer, you can navigate to the specific installer you want to use. It will then ask you where you want to copy the files. Stage 1: Create Bootable USB Flash Drive First connect your USB drive to the Mac computer and launch Disk Utility tool. The app should automatically find the copy of OS X you’ve downloaded to your Applications folder. Select the Yosemite 10.10 option when presented with the following screen. Once done, connect the USB drive (8GB or larger) to your Mac and run the Diskmaker X app. How To Make OS X Yosemite Bootable USB Flash Drive: Step 1: First up, you will need to format the USB drive. Now grab the latest version of Diskmaker X app for free from here. This is more useful if you ever want to do a clean install of the operating system.īelow are the step-by-step instructions on how to create a bootable Mac OS X 10.10 Yosemite install USB drive (via Ars Technica):ĭownload OS X 10.10 Yosemite from the Mac App Store, but don’t install it yet. In the Burn window, select the DMG file from the Source File section. Step 2: You can import the DMG file directly by clicking on ‘Burn in the toolbar or going to Tools > Burn. Launch the app and insert a USB drive into a free USB slot in your computer.

While Apple does not officially offer its OS via optical media or USB sticks, you can always keep a physical copy of your Mac App Store download in the form of a bootable install USB drive. Step 1: Download PowerISO and install it in your Windows PC. In line with the previous OS X updates, Apple released OS X 10.10 Yosemite earlier this week, exclusively as a digital download via Mac App Store for free. This video is regarding how to create a bootable install usb drive for yosemite operating system mac os x this is a very easy method just only two steps to t.

Create yosemite bootable usb