What could this specific build do in its heyday? Quite a lot.
"VM fails to start with 'Virtualized Intel VT-x/EPT is not supported on this platform.'" Solution: You have nested virtualization issues. Go to VM Settings -> Processor -> Uncheck "Virtualize Intel VT-x/EPT." FULL VMware Workstation Pro 12.5.9 Build 7535481 -x64-
64-bit versions of Windows (7, 8, 10) or Linux (Ubuntu, Red Hat, CentOS, etc.). Broadcom support portal Key Features Legacy Hardware Support: What could this specific build do in its heyday