Apr 05, 21 · Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes and a gear icon labled Options Select the volume containing the bootable installer, then click Continue When the macOS installer opens, follow the onscreen instructionsMar 04, 21 · In this article we'll run through the steps necessary to create a bootable installer of the Mac operating system, whether it's so you can install theDec 24, 13 · Question Q Macbook pro 10, won't boot from usb I have installed Mavericks 1091 Have a SSD as primary boot device and a 250gb HDD for data I want to install windows as a second SO but i can't get to boot from usb to install it I use boot camp to make the booteable USB flash I have tried many USB drives How To Edit Boot Camp To Install Windows From A Usb Flash Drive Techrepublic Mac pro 2006 boot from usb