I dont remember doing anything wrong on my computer then browsing youtube, the web, messenger, watching videos and doing my homework on word. My acer has 500 GB HDD and 4 GB memory. All of the sudden while I was working, my computer starts being slow and not responding to my actions quickly, then becomes frozen. After that the blue screen of death appears. So I press the power then restart it again. Then a whole bunch of message appears , finishes it with " Operating System Not Found". So I tried to goto Bios and putted the Hard drive to boot first and make sure the network wasn't. After that I used my recovery CD from Desktop to check if I can reinstall windows but then when it asks to choose a drive to format or to install windows on to , it says no harddrive cant be found. So I can't even reinstall windows. I called Acer and they said they will send a CD, but I want to know if there is any other way because I dont want to wait 10 -15 days for the CD. Has anyone had this problem and found a way to solve it please help me out.!