My computer won't load Windows and previously there were minor errors with the hard drive.  I tried to access the drive with a Sabrent hard drive tool on another computer and that didn't work.  I went through diagnostics and found there is enough connectivity to the drive to allow system restore, but that doesn't work.  I loaded Seatools DOS onto a USB stick using 7zip and Win32 diskimager (I downloaded the 64 bit disk imager version for my working computer's 64 bit OS though I think the old computer is 32 bit Windows).  When I boot to that it just shows a black screen with the text FreeDOS and a blinking cursor.  Leave it on for 15 minutes.  No option screens, popups, actions of any kind.  How do I get this Seatools to work?

Also as a last resort if all this fails is there a way to get the software key to things like the Microsoft Office at least so I can re-use that?