So, I solved the issue by increasing the RAM from 8 GB 2133 MHz to 12 GB 2133-2666 MHz. I still get freezes occasionally but they are not so long and devastating and are mostly related to environment loading that occurs as I travel from one location to another, I guess. The reason that might have caused my SSD to overload could probably be the swap file located on the C: drive. I didn't have the time to investigate this issue further by meddling with the swap file, so I decided to upgrade a bit.
Nevertheless, I had been told that I'd be able to play this game with 8 GB of RAM, as it is indicated in the System Requirements section of your product page on Steam, which I couldn't do even on minimum settings, although all requirements seem to have been met.
Anyway, thank you very much for your efforts to support me.

Hello, Geez.
Thank you for your reply.
Yes, these files are located there. I deleted the folder and verified the game files but the problem still remains. I mean, I may play peacefully for an hour without having freezes if I downgrade graphics settings to the very lowest ones. Or I may still have freezes that appear after a 30 minutes of gameplay – it's random.
I even created a separate Documents folder on my HDD (where the game is) but the game creates its configuration folder in the default path located on disk C:\. I'm trying to find out what has caused the SSD (C:\) to overload. Will moving the DayZ configuration folder from the SSD to the HDD help to solve the problem? If so, tell me how. If not, please tell me what else I need to do to fix these freezes.
Thank you.