I found an old Hitachi DeskStar 400GB hard drive in a windows vista computer. I'm building a new PC, so I downloaded Dban, burned it to a CD-R, and tried to wipe the hard drive a couple of times. The first one failed, because I didn't have a USB stick to store the logs. The second one didn't say if it failed or succeeded, it just said that dban finished with non-fatal errors and to check the log for more information. I then tried booting on the old hard drive, and it doesn't work, it tells me to plug in a system disk and press enter to continue. Is it safe to assume that the hard drive is empty because it won't boot?