Why can't I upgrade to Mavericks when running OSX Lion ?
I have a mac Pro Desktop OSX Lion 2x 2.66 GHz Dual Core Intel Xeon and 16 GB 667 MHz DDR2 FB-DIMM running right now and I got a free software update to install OSX Mavericks and when I clicked on it to install it and it read that it couldnt be installed ? how can I get this free upgrade and install it on my MacPro? anybody come across this issue? please help. thanks
Mac Pro, Mac OS X (10.7.5)