Will it Wipe all my data in my MacBook Pro if I Upgrade to Mac OS X Mavericks 10.9
My Question is, Will it Wipe all my data in my MacBook Pro if I Upgrade to Mac OS X Mavericks 10.9
or else what will be modified?
MacBook Pro, OS X Mountain Lion (10.8.5), Mac OS X Maverics (10.9)