The Application Unable to Start Correctly (0xc0000005) error on launch can usually occur due to a conflict with Anti-Virus or Firewall.
We recommend ensuring you have appropriate Anti-Virus and Firewall exceptions in place. Please try adding following exceptions:
\Program Files (x86)\Steam\steamapps\common\Warhammer Vermintide 2\binaries
\Program Files (x86)\Steam\steamapps\common\Warhammer Vermintide 2\binaries_dx12
\Program Files (x86)\EasyAntiCheat