x299 Taichi and Intel Virtualization (VT-x)

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   I just bought an x299 Taichi board and fitted it with an i9 7940x, which according to the datasheet supports both VT-x and VT-d.
"Intel Virtualization Technology" and "VT-d" are both enabled in the UEFI, I use 64-bit Windows 10 Pro but systeminfo.exe reports the following under "Hyper-V Requirements":
- VM Monitor Mode Extensions: Yes
- Virtualization Enabled in Firmware: No
- Second Level Address Translation: Yes
- Data Execution Prevention Enabled: Yes

Fast Boot is disabled (I've read that enabling that can mess with virtualization).

I am using UEFI v1.40. I see there's a newer version (v1.60), but want to make sure there's absolutely nothing else I can do before that.

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iconoclast Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Sep 2017 Status: Offline Points: 8	Post Options Post Reply Quote iconoclast Report Post Thanks(0) Quote Reply Topic: x299 Taichi and Intel Virtualization (VT-x) Posted: 14 Oct 2017 at 9:34am
	I just bought an x299 Taichi board and fitted it with an i9 7940x, which according to the datasheet supports both VT-x and VT-d. "Intel Virtualization Technology" and "VT-d" are both enabled in the UEFI, I use 64-bit Windows 10 Pro but systeminfo.exe reports the following under "Hyper-V Requirements": - VM Monitor Mode Extensions: Yes - Virtualization Enabled in Firmware: No - Second Level Address Translation: Yes - Data Execution Prevention Enabled: Yes Fast Boot is disabled (I've read that enabling that can mess with virtualization). I am using UEFI v1.40. I see there's a newer version (v1.60), but want to make sure there's absolutely nothing else I can do before that.

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 14 Oct 2017 at 10:35am
	Is this with another Hypervisor installed that you see this? If you have VMware or the like installed, disable MS's Hyper-V. Only one hypervisor is allowed. How do I disable Hyper V? Hit the Windows Key and type "windows features" Hit the Windows Key + W combo to bring up the Windows Settings panel of the Start Screen. Click on Turn Windows features on or off. When the Turn Windows features on or off dialog appears, look for Hyper-V and deselect it. Click OK. Restart your computer when prompted. hth Edited by wardog - 14 Oct 2017 at 10:37am

iconoclast Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Sep 2017 Status: Offline Points: 8	Post Options Post Reply Quote iconoclast Report Post Thanks(0) Quote Reply Posted: 14 Oct 2017 at 11:19am
	No, this is on a clean installation of Windows. I am not even allowed to install the Hyper-V feature (the only hypervisor I'm planning on running) because of this.

iconoclast Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Sep 2017 Status: Offline Points: 8	Post Options Post Reply Quote iconoclast Report Post Thanks(0) Quote Reply Posted: 15 Oct 2017 at 2:51am
	I am happy to report that upgrading the UEFI to v1.60 resolved the issue.