I tried to install the 10.10.4 update (upgrading from 10.10.2) on my MacBook Pro, and it crashed with the progress bar in the "less than one minute remaining" position. It left the computer unbootable except from my Snow Leopard install CD. Couldn't restore 10.10.2 from time machine backup. So, I had to restore from the last backup of 10.6.8, and then do a complete new install of 10.10.2. Then finally restore the last time machine backup of 10.10.2. Ten hours later I'm back to where I started yesterday. I don't think I'll be attempting the 10.10.4 update again. This is just one more item in the long list of things that I hate about Yosemite. I'm seriously wondering if I'll ever buy another Apple computer after this. If I want garbage software, I'll just buy a Windows PC for half the cost of a Mac. Do I sound pissed off?
