I have a V6535 laptop and the hard drive recently crashed with the following error message, 0x0000007B (0x80786B58, 0xC0000034, 0x00000000, 0x00000000). I've tried rebooting from the win 7 DVD, but the hard drive is not detectable. Please help! I'm totally out of wits. Please, any assistance will be highly appreciated.