How to restore a hard drive?

Question

Hard disks

Hello.
It costs 1 sdd (system) and 1 hdd (file box).
Before going to work, I turned on the hdd defragmentation, because. I didn’t turn it on for about a month and the PC slowed down a bit.
After 20 minutes, I got a blue screen and the PC rebooted. After that, hdd completely disappeared, but the system sdd remained. HDD is not displayed absolutely anywhere, even in aida64. There are no sections.
Did I ditch my hard drive? It will be very sad, because very important documents were kept there.
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Who can help, please write. Maybe there is a way to check what happened to him?

Answer 1

Pull out the drive, pull the cables, maybe oxidized, fell off. Listen to its noise, if you hear any rhythmic sounds (clicks, knocks) - the disk is faulty.
If it doesn't, then alas.
By the way, I once had such a disk lying down for half a year and it worked, let me merge the files.

Answer 2

Drag to data recovery services. ideally - do not touch it at all, if you do not want a higher price and less chance of recovery
AND specify the disk model at least

Answer 3

Maybe there is a way to check what happened to him?

You can check the disk with R.tester , but it is very unlikely that you should do any such checks (regardless of the program), given that

very important documents were stored there

Moreover, considering that

HDD is not displayed anywhere absolutely, even in aida64,

there is a high probability that user software will not see it. I haven’t used Aida for a long time, so I can’t say for sure, but with a high probability this also means that the disk is not visible in the BIOS even just as a device.
Because there is important data on the disk, you should never follow the myths circulating on the Internet about recovery using "magic" programs, or techniques like cooling the disk in the refrigerator. So far, the probability of doing something yourself looks near zero, but to finish off the head - not at all.
If the disk does not make extraneous sounds when the computer is turned on, then it can be assumed that under increased load (defragmentation = read / write), the disk stumbled upon bads, or the firmware was damaged.
If my assumption is correct and the disk heads are alive, then the best solution is to put the disk aside and not even try to turn it on, so as not to ruin the heads, and contact a company that is professionally engaged only in data recovery .
In normal companies, diagnostics are free, and besides, the price for information recovery with reading without replacing the head unit (that is, with native disk heads without opening the HDA) should be quite acceptable.
Just in case, here is a quick guide to choosing a data recovery firm : https://data-recovery.com/