Vagrant up - VBoxManage.exe error: VT-x is not available (VERR_VMX_NO_VMX) code E_FAIL (0x80004005) gui headless [closed]

Answer 1

Although this is an old question, but I've still encounter it recently.

This is what worked for me on my i7-3770 3.40GHz, Z77 extreme motherboard running Windows 10.

In Windows, disable Hyper-V:

1. Open up a PowerShell or CMD session as Administrator.
2. Type the following command: dism.exe /Online /Disable-Feature:Microsoft-Hyper-V-All
3. Windows will ask you to restart.

In the bios:

1. Disable >>> Intel Virtualization Technology, vt-d
2. Save the bios settings and allow it to restart and boot into Windows.
3. Shutdown the computer (I've tried just restarting and it didn't work)
4. Power up the computer, go into the bios and re-enable the above disabled settings.
5. Save, restart.

Download the Intel Utility to check.

You should now see it been supported:

If it still doesn't work, try re-enabling Hyper-V first then following the steps above.