WHvCapabilityCodeHypervisorPresent is FALSE! Make sure you have enabled the 'Windows Hypervisor Platform' feature. (VERR_NEM_NOT_AVAILABLE).

Question

VT x already enabled and all any virtual machine not launching with this eror

Answer 1

Hi Daniel,

Hope you're doing well.

As far as I know the error message "WHvCapabilityCodeHypervisorPresent is FALSE! Make sure you have enabled the 'Windows Hypervisor Platform' feature. (VERR_NEM_NOT_AVAILABLE)" usually indicates that the 'Windows Hypervisor Platform' feature is not enabled on your machine. Here are some steps you can try to resolve the issue:

1. Open the Windows Features dialog box by typing "Turn Windows features on or off" in the search bar and selecting the corresponding option.
2. Ensure that the 'Windows Hypervisor Platform' feature is enabled.
3. Restart your machine and try launching the virtual machine again.

If the issue persists, you can try disabling Hyper-V (if it is enabled) and enabling the 'Windows Hypervisor Platform' feature.

Here is the relevant document for you reference:

virtualbox - How do I this fix VERR_VMX_MSR_ALL_VMX_DISABLED in Virtual-Box? - Stack Overflow

I hope this helps!

Best Regards,

Ian Xue

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