HT201364: OS X Mavericks system requirements
Learn about OS X Mavericks system requirements
-
All replies
-
Helpful answers
-
Jan 28, 2015 4:34 PM in response to M3RKMUS1Cby Old Toad,Select the MBA's hard drive icon and type Command + i to bring up the Info window. Confirm that you have 10.9.5 on the drive?
Next boot into the Recovery volume (boot with the Command + R keys held down), select Disk Utility and repair both the disk permissions and the disk. Try installing Yosemite again.
-