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set the mentioned option as follows:
- Intel Virtualization Technology (VT-x) = Enabled
- VT for Direct I/O (VT-d) = Disabled
- Intel Trusted Execution Technology = Disabled
In addition to these settings you may want to enable the "Exectute Disable Bit".
After changing any of these option and saving the BIOS settings, you will need to power-cycle (power off/power on) the system. A simple reboot is usually not sufficient.
André