I need some help before I mess something up. My computer has been acting crazy for the past few days (5 or 6). I turned off my computer one day and the next when I rebooted, everything in my F drive is gone. I have basic knowledge of computers, and I installed another hard drive a year ago and everything was fine. My c drive is my original I have my cd burned as d, my dvd burner as e and my other hard drive as f. I never cleared the drive, so how come it says that it needs to be formatted. I have a lot of material on that drive and really need some help.