Stuck on first loading screen.

[JetCaesar]

Hi guys, sorry i'm a newbie but not a newbie to computers. So I got Yosemite on my USB, booted it up and the Apple logo shows up, starts going across the loading bar filling it in with black, THEN at about 20% full it just stops. Like forever. Could any of you fill me in on how to do 2 or more boot flags at the same time? I really don't know if i'm doing it correctly.

If there is another thread like this, feel free to re-direct me and call me a fool.

Any help would be great.

Thanks Amigos!

 

[BreBo]

Please read the rules.

Profiles need to contain at least your primary system to assist others with helping you.