問題背景：機器運行了Hype-V後，又安裝了VBOX，打開VBOX中的Kali時，一直在黑屏界面loading，無法正常加載
忘記哪個站點上看的老外的一個法，挺好使，Mark在這裏
STEP 1:
Open the command prompt as an Administrator.
STEP 2:
Run the command with no argument: bcdedit
After you run the above command, you will see that the property hypervisorlaunchtype is set Auto by default.
STEP 3: Disable Hyper-V by running the command: bcdedit /set hypervisorlaunchtype off
STEP 4:
Restart your PC system to use VirtualBox.
To turn Hyper-V back on, run the command: bcdedit /set hypervisorlaunchtype auto
You will need to reboot the system to use Hyper-V.
感謝以上分享方案的老外，雖然忘記你來自哪個站點，知識無國界，come on Wuhan！come on China!
====