Download OS X Yosemite from Mac App Store.

Note: Make sure the name is set ‘Untitled’, not ‘Untitled 1’ or anything else. Once done, click on “Apply” button to create partition. Click on “Options” and make sure “GUID Partition Table” is selected as partition scheme. Note: Make sure the name is set to ‘Untitled’ format is set as ‘Mac OS Extended (Journaled)’.įrom “Partition Layout” dropdown menu select “1 Partition”.

Launch Disk Utility, select the flash drive from the left sidebar, and then select “Erase” tab from right, and click on “Erase…” button to format the USB drive.

Prepare a USB flash drive with at least 8GB storage capacity.

Step-by-Step Guide on How to Create OS X Yosemite Bootable USB Flash Driveīefore start, please make sure Mac with ‘Install OS X Yosemite.app’ file downloaded from Mac App Store.

Furthermore, update from USB drive is also faster comparing to update online.Īlthough previous method used to make bootable drives of OS X Lion and Mountain Lion installer did not work for OS X Mavericks and Yosemite, but users can follow the step-by-step guide below from the procedures to prepare an external USB bootable drive to copying the OS X Yosemite installation setup files over. Most people will choose to install or update direct to Mac, but still have some people may opt to make or create a bootable OS X Yosemite USB drive to install OS X Yosemite on PC systems that support booting up from a USB drive. Users can download OS X Yosemite from the Mac App Store free of charge to update and install to PC. OS X Yosemite is released and available to free update for Mac users.

Bootable usb mac os yosemite