i have a laptop, it has been running slow, problems loading new applications ( i was running vista) i decided to install W7. while installing laptop began running extremly hot, the install never finished the pc shut down.... so i tried to install again.. pc kept shuting down... i done this numberous times.. took the hard drive out and installed OS on it on different laptop susessfuly... then put it back in first pc... .. it starts to load but then blue screan flashes really fast then restarts pc..... now at screan where it tells me to repair or start windows normaly... so i repair ... not sussesful .... no solution... CAN ANYONE ASSIST ME WITH THIS ISSUE... DO I HAVE A HARDWARE ISSUE THATS NOT ALLOWING IT TO LOAD.. HELP PLEASE!! THANKS