refer:https://superuser.com/questions/1153470/vt-x-is-not-available-but-is-enabled-in-bios
There are three common culprits for the type of error the user is seeing:
- VT-x is not enabled in the BIOS
- The CPU doesn't support VT-x
- Hyper-V virtualization is enabled in Windows
dism.exe /Online /Disable-Feature:Microsoft-Hyper-V