VirtualBox requires specific hardware emulation commands executed via the Windows Command Prompt to boot macOS successfully.
It requires less RAM and CPU allocation than modern versions like Sequoia, Sonoma, or Ventura. Where to Find the "Best" VMDK Download mac os high sierra vmdk download best
Ensure the downloaded VMDK file is not marked as "Read-only" in its Windows file properties. Right-click the VMDK, select Properties , uncheck Read-only , and click Apply. and click Apply.