This post explains the step-by-step process to run a VirtualBox OVA built for x86_64 architecture on a modern Mac that uses ARM64 (Apple Silicon) processors. Because of the architectural differences, the virtual machine cannot be executed directly and must be converted and launched through emulation. The procedure uses QEMU to convert the virtual disk format and UTM to create and run the virtual machine on macOS. Note that since this setup relies on emulation rather than native virtualization, performance will be noticeably slower than running the same machine on an x86_64 host.