How to Fix VirtualBox E_FAIL (0x80004005) Error

  1. Open Command Prompt, you can type Command Prompt on Search Bar on Windows 10 and Run it as Administrator. Or you can type Win+X on your keybord, and select Run, and type Command Prompt.2) Type bcdedit /set hypervisorlaunchtype off on your Command Prompt, after successfully applied please restart your PC.3) The you can try to run your Virtual Machine again. That’s how to fix irtualBox E_FAIL (0x80004005) Error in VirtualBox. You can also view the video guide via the video below.