Hi there,
Complete newbie trying a treasure hunt, luckily found your post, Thank You!
So I am scanning the hard drive with WinHex: should it look like this
https://imgur.com/a/mrEeL ?
I basically selected the drive, pressed "F9" and pasted, pressed "CTRL+F", and pasted "01 03 6B 65 79 41 04". Looking good?
Cheers!