I have been trying to fix a new dell inspiron laptop with windows vista that was purchased in june 2007. To my knowledge the owner has not done anything that would have given her a virus or anything of that nature, though she did say she always is connected to the internet and leaves her computer on all the time. She was trying to rip one of her cds one evening into WMP but she had to try like 5 times to get it to work. It worked fine the morning after, but when she came back later that afternoon it was a black unresponsive screen. I have tried repeatedly to boot up safe mode to use system restore but after I select safe mode the "loading windows files please wait" shows up. After a few minutes the green vista loading bar appears and then a few minutes later the screen just goes black. I have waited about 30 minutes with the black screen and nothing happens. At the initial dell boot screen I have pressed F12 and ran the extensive diagnostic test and the only errors that appeared were 5 or 6 bad sectors in the hard drive. We don't have the back up disks on hand, so is there anything I can do to fix it?