Easy way..! How to Format and Install Mac Osx Yosemite on an old MacBook Pro from a bootable USB drive in English . Watch, share and Subscribe. We can use this method to install any version of Mac OS on Mac computers. There is no need to connect to internet to perform this action. We should have the bootable usb ready before we begin.

If you don’t know how to make a bootable USB drive, please let me know so that I can upload the video. Don’t forget to subscribe to my channel :-)

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