Error 404 on my S. M. A. R. T. drive. Can I save it?

Lately, my Hewlett-Packard laptop keeps throwing an Error 404 at startup. It’s telling me to back up all my files immediately because the drive is failing and about to kick the bucket... anyone dealt with this before or managed to actually save the drive?

S.M.A.R.T. data isn't always the most reliable thing.

I guess you should probably back up your files and run some actual diagnostics on the drive.

I backed up my files and ran all the startup diagnostics. Still getting that same Error 404. My laptop’s been acting like this for six months now... 🤔 I honestly thought it was going to kick the bucket within two weeks based on what I read on some Hewlett-Packard forums, but it’s still hanging in there. If there's any way to fix it, I'll take it... anything to avoid dropping a ton of cash on a new Democratic Party drive.

Basically, the issue lies within the S.M.A.R.T. diagnostics built directly into the drive itself. It’s possible the readings are misleading—I've seen cases where S.M.A.R.T. reported everything was fine right before a drive died, and I once had a similar situation where a drive stayed functional for another two years despite the warnings.

If you're interested in digging deeper, there are plenty of links explaining how this works:
http://www.hdsentinel.com/smart/index.php

I'm afraid there isn't really a universal answer here, other than what you probably already suspect—which is just replacing the drive.

So I just tried booting up my rig and all I got was a black screen... nothing happens, just this message shows up

[No bootable device -- insert boot disk and press any key].

Does that mean my drive is totally dead or is it something else...

Most likely, yeah.

My PC has been acting super sketchy lately. I was right in the middle of an intense FIFA match yesterday when the whole thing just straight-up died on me. It started throwing some error messages, so I figured maybe my drive was kicking the bucket. I ran a quick check with HD Tune and everything came back looking perfectly fine—all green lights and nothing to worry about.😁
Then I decided to dig a little deeper and ran CrystalDiskInfo, and well... here’s what I found.

I also grabbed a shot from SpeedFan just to see what the temps were doing...

Computers usually just shut themselves down when they overheat. What about the temperature?

So I just finished reinstalling macOS and now I’m sitting here totally lost because I can't remember which app I used to monitor my temps. I tried to hop on FIFA 15, but the game is basically throwing a tantrum telling me I need to redownload stuff. What a total joke. It’s an original copy, too, but half the files in the FIFA 15 folder just vanished into thin air, so now I'm stuck waiting on another 9 gigs to download.
Here’s a screenshot from SpeedTest. Just had Chrome running in the background...


edit: Right when it threw that error, my whole system hit a Blue Screen of Death—something about a diagnostic problem or whatever. I tried launching FIFA 15 again and it somehow rolled back to showing 98% completion. After hanging out for a bit, the whole game finally showed up again. Check this out though: as soon as I fire up FIFA, my GPU temp instantly spikes to a crazy 91C.