1) Uninstall and reinstall Virtual Box:
https://www.virtualbox.org/wiki/Downloads
2) Make a new restore point
3) Restart WDV and and if there are no performance problems add DDI
4) Upgrade the BIOS: 2.8 > 2b
https://us.msi.com/Motherboard/support/Z170A-KRAIT-GAMING-3X
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