Stop Error "0x0000005D" appears when starting a Virtual Machine from the Windows Server 2012 ISO, in order to install the system. The error occurs right after loading the setup files, before the actual setup starts.
To avoid this error, go to Advanced Options > Processor Options and enable the No-Execute Memory Protection setting in the BIOS of the host.
This feature is also known as Data Execution Prevention.
No-Execution Memory Protection/Data Execution Prevention processor: