New Problem: Read through the thread PLEASE, I am getting frustrated with myself, not the community of course.. Edit: When I go to boot from the flash drive, it start up normally for 30 seconds with the Apple logo and spinning loading wheel and then after 20-30 seconds it sounds as if the HDD just goes to sleep or turns off and immediately I get the little circle with the line through it.. Ugh. Installing OS X from USB drive, when I click on it starts with this and has been hanging for 15 minutes. Should I restart it and try again? Or will it damage my bootable USB drive? Or is this normal, thank you!