Is it possible to get data from the hard drive if it sees them but does not allow to be copied?

Question

Hard disks

Good afternoon.
The situation is this.
We got a computer repaired. He acted as a server for the restaurant.
On it were two important programs with their databases. This is iiko and flagman
The system stopped loading. It comes to welcome and that's it ..
The farther the worse.
It got to the point that when we try to boot from the disk, it does not see the system at all.
Did a system restore from a bootable flash drive, did sfc / scannow and chkdsk
Nothing helped.
They took out a hard one and connected it to a laptop through the station. At first it saw 3 partitions: 1. 100MB reserved by the system
2. 100GB system and 3. The rest
I tried to simply copy the byzy data.
Naturally, he gave admin rights to folders and files. Not total, not winrar did not help. It error. The disk is either disconnected or simply does not copy. 3-4% and all errors.
Something the disk is disabled when it crashes
Or you just can’t do anything with it ..
Suspicions that they picked up a virus and it just killed the files!

Answer 1

Of course, you didn’t even try to shoot a sector-by-sector copy?