HDD problem, possibly dead?

[Wyo]

Alright, so I got this laptop HDD to check it out, owner said that laptop was used heavily in gaming until it got destroyed by viruses. I took a look at it and the first thing I noticed was that the hard drive was on 100% all the time which made computer unusable. The next day hard drive failed compleately and I couldn't even boot on Win. Now its attached to my computer to take a look, I have some programs (CrystalDiskInfo, CrystalDiskMark, Hard Disk Sentinel and some other). Some of them recognize the HDD some don't, my question is what can I do to understand whats wrong with it and to know if its totaled or not. 

[NelizMastr]

HDSentinel is generally the most accurate of these utilities. What's wrong is that the disk has pretty much reallocated a bunch of sectors because bad sectors ar becoming more and more of an issue and it can't be trusted anymore. Copy important data off and destroy the disk with a hammer before throwing it out.

[Wyo]

3 hours ago, NelizMastr said:

HDSentinel is generally the most accurate of these utilities. What's wrong is that the disk has pretty much reallocated a bunch of sectors because bad sectors ar becoming more and more of an issue and it can't be trusted anymore. Copy important data off and destroy the disk with a hammer before throwing it out.

Thank you!