Juan attempted to install OS X onto an iMac by copying the hard drive of a different Mac he owns. The prohibitory symbol. What does this indicate? A. The iMac is unable to find a startup disk that contains boot…

Henry has verified his Mac can run OS X Yosemite and is ready to upgrade. What should Henry do first? A. Download OS X Yosemite from the Mac App Store. B. Free up disk space. C. Sign in to the…