after installing the win10 virtual machine on the ubuntu20.04 host by VM Workstation Pro, some errors occur when you first boot:

VMWare Virtual Machine Monitor Failed

The

link may help you, it has solved my problem :

click this link
you may not know the following operations :

so see this link :
how to disable secure boot in my BIOS

When

has completed all operations, execute this command :

 vmware-modconfig --console --install-all

if this page appears :

congratulations, you have succeeded!