You start the VM and get the following message:
This error can be dues to various reasons such as:
- VT-x is not enabled in BIOS settings
- Hyper-V virtualization is enabled in Windows
- Avast update disabled VT-x
- and so on ….
Check the following website: https://appuals.com/fix-vt-x-is-not-available-verr_vmx_no_vmx/
giving the different ways to fix this issue. Most of the time, you have to enable VT-x in your BIOS settings