So about 2 weeks ago when inturned my pc off and i tried to start it up again i would have to go into bios and manually load my hdd to get to OS. I was tired of doing this because to load bios it would take an hour each time because my keyboard and mouse sometimes would not turn on but i can see the lights on my pc and hear the fans going, and when id finally getcto the screen directing me to press f2 or del to enter bios my pc wouldn't respond to the keyboard or mouse and would then go to a flashing white - with a black screen and stay there until i turn it off. I read online that someone said to reformat it so i did and now i cant get back on alltogether. Any idea what the problem could be? My friends told me its probably the HDD and ive had trouble with it before. Any help much appreciated