I own a windows 7, HP Pavilion Entertainment PC. Recently, the hard drive on my laptop has not working. I put a disk in (Music, Sims, etc...) and it it doesn't open. It just makes high pitched buzzing noises and sounds that sound like its working.. But nothing happens. When it worked.. It would just open the window by itself. But randomly.. It just stopped.. SO I went to documents and I tried to open it there. And it still didnt work! I have tried going to control panel and fixing it there. But nothing worked! What do I do to fix it? Please help!