yesterday I installed a hardware that makes that you have four extra USB-ports (i push one in your computer and the hardware piece gives you for extra hardware ports (I can't really name it, because my english is quitte bad) and i installed the software that was on the hardware piece, and now my computer can't boot anymore.... a huge problem.... i can't even use safe modus because it stops ad the beginning screen were you can read: press "delete" for BIOS options... can somebody help me pleas