Hi,
IIRC then the workaround is to change the virtual SATA CDrom to IDE and then remove the sata conttroller.
Of course that also means that your virtual disk should not be a sata disk.
Edit: Never mind.. my bad, didn't read well enough. That is the workaround for Windows 10 guests, not for Windows 10 hosts. On a Windows 10 host, you're likely to have more problems with using Workstation 8 anyways.
Hope this helps,
--
Wil
