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 Mac App Store.
D. Back up the Mac.
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 Mac App Store.
D. Back up the Mac.