VMware Workstation and Hyper-V are not compatible

Check the solution here: Cannot run VM in VMWare on Windows 10 due to Hyper-V

Some of Microsoft's security software (in the example above, DeviceGuard), uses the HyperV engine, so even though HyperV is disabled itself, the componenets are still being used.

You can only have one hypervisor at a time (it locks the Hardware Assisted Virtualization to a single one).