Yes, I second what everrest said.
Thing is, this is what's called a Full Disk Encryption drive, so I believe you're looking at one of these drives or maybe one of these.
I am unsure how that would work in a laptop in which this drive was not originally placed from the factory. I think you could put it in the laptop, boot up, you'll be asked for a password, tell the program you don't know it and so you'll have to perform the secure erase, after the erase is finished set up a password, then install the OS like with a normal drive, etc.
Then once you reboot the laptop, you'll have to enter the password to get into the computer, before Windows starts.
That said, I am unsure how well it usually goes to take one of these drives out of external drives and to put them into a laptop as the sole boot drive. You could always try if you want! But it might make more sense to try to sell this one, but then again, you might not get enough money out of it for that.
