Could some1 please help, when i put a device in my mmc / sd reader it doesent regester that there is something there the green light next to the reader comes on but nothing happens i have tryed to access it in my computer but when i do, it says my computer not responding in task manager. also when the computer (hp pavilion) is started up it comes up with safely remove hardware tool even tho nothing is connected to it i am soo confused some1 please help me thankyou for your time 
