ok to make a long story short, a few months back i upgraded from beta 2 to beta 3 and my Mac Mini (late 2009) would barely run and safari wouldn't connect to any sites at all. i did a restore from a time machine backup back to beta 2 and all has been fine since. this is my current config now that 10.10.1 is out i have tried to unsuccessfully to upgrade several times. if i try downloading Yosemite from the Mac store it fails and says i am already running 10.10 today i downloaded the 10.10.1 update directly from Apple and when i try to install, it says my hard drive doesn't meet the requirements for this update ? drive is a new Samsung Spinpoint M8 ST1000LM024 1TB 5400 RPM 8MB Cache i'm lost, any ideas ?