1. Open your Steam Library and right-click on the game.
2. Select "Properties" and then "General".
3. Disable Steam cloud synchronization.
4. Open "Steam/userdata/[your ID number]/221100/" and delete everything.
5. Restart your computer and start the game with a new character.

Good afternoon, I've been trying to get Dayz working for five days.
This error occurred while I was co-piloting a helicopter upon entering Klem, and the image froze.
Since then, I haven't been able to access Dayz, but I have been able to access Dayz Experimental.
I've already deleted Steem... reinstalled it, validated the integrity of the Dayz data... and formatted the computer with a driver and updated the BIOS. I ran a RAM test. I have a good PC.
I don't understand what could have happened, but every time I select a server, I get a black screen and the PC crashes completely.