For security reasons, Windows Server 2012 by default has enabled Structured Exception Handling Overwrite Protection (SEHOP) for all applications and services. This can lead to problems when running games and applications. In case you encounter applications crashing with exception code 0xC0000005 (EXCEPTION_ACCESS_VIOLATION), cure use the steps below and the Disable DEP page to disable these security features.
2. In the Registry Editor navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Kernel, double click the DisableExceptionChainValidation value to open the editor and change its value to 1.