Windows 7 won't recognize second HDD

So like the title says, my second HDD just refuses to be recognized by windows. Or perhaps saying it won't initialize might be a better way of putting it. The drive was all fine, it's only about 4 months old at this point and has been working. But I had some weird crash and on a restart Windows said it needed to run a repair and restore. After doing so I noticed my second HDD wasn't being picked up. While annoying, not tough to fix. But that when I ran into an issue.

I get this error message.
Screenshot by Lightshot

I looked into it and some are saying that means the drive is likely dead. While other suggested running a tool from Seagate to confirm. So I downloaded it, let the tool do it's thing which took just over and hour but it came back with this.

Screenshot by Lightshot

Neither of them seemed to comeback with any sort of issue. Now I should add that the HDD installed via a bay or a caddy (not sure which is the correct way to explain that) but I'm not sure if that's causing my issue. But at this point I'm at a loss. Is the drive just dead despite what the tool turned back?

The tool may have only issued read commands, whereas initializing the drive would involve writing. That could explain why the test passed; whether or not the drive is good or bad I couldn't say. If you have no intention of attempting data recovery, try an erase operation through the Seagate diag tool. The bootable DOS version has that feature, so I assume it's available in the Windows version.

If the caddy has a backplane or any other circuitry between the drive and the cable, you should take it out of the equation.

I did tell the tool (Seatool) to run in the "fix all" option so I'm not sure if that makes much of a difference. That said, there was nothing on the drive that was of real importance so I have no issues trying your suggestion.

Thanks for that.

I believe the "Fix all" option doesn't involve writes in any convential sense. It causes the drive to internally remap bad sectors to "reserved" sectors (if bad sectors have been identified).

Either I am blind/dumb (which is possible) but I'm not seeing any sort of option for erasing a drive via the Seagate Tool. So unless there is another one that I'm not finding (I used their download page) that option doesn't seem possible, at least through the SeaTool.

*Edit, I got it to show up. I needed to enable the advanced tests first before an erase tab decided to appear.