I did restart too, that's good, simple advice that people tend to forget sometimes. Thanks for the help King, keep up the good work

Got the same issue here, now it's 25% and counting :D
I'm not sure how I fixed it, but here's all of what I did:

-Cleaned my E: and C: drives as hard as I could (used Start > Computer > Disk C properties > Free Space AND deleted the contents of Windows/Prefetch & wIndows/SoftwareDistribution), also ...

9% and counting :D
I'm not sure how I fixed it, but here's all of what I did:

-Cleaned my E: and C: drives as hard as I could (used Start > Computer > Disk C properties > Free Space AND deleted the contents of Windows/Prefetch & wIndows/SoftwareDistribution), also defragmented them.
-Deleted the ...

Slowly making progress here.
The error reads:

######
Произошла ошибка при распаковке: Не хватает памяти!
Unarc.dll вернул код ошибки: -5
ERROR: archive data corrupted (decompression fails)
######

which Google translates to:

######
An error occurred while unpacking : Not enough memory !
Unarc.dll ...

I downloaded "Call.Of.Duty.Black.Ops.III-KaOs" from here, used the torrent link.

It finished just fine, I extracted the .rar (32 parts) and ran the "Install.exe".

I actually managed to install the game, but when I tried to open it I got an error about a file named "code_pre_gfx" BUT that's not ...