# VMware Workstation/Player Does Not Support Nested Virtualization On This Host
Error while powering on: VMware Player does not support nested virtualization on this host. Module 'HV' power on failed. Failed to start the virtual machine.
Hyper-v and Vmvare still can't open together(Workstation 16 Player and Workstation 16 Pro can together with Hyper-v). Details here (opens new window)
What I did was uninstall Workstation 15 Pro and install Workstation 16 Player on my own windows10.
Still this error. Also, I met another error, the error told me something about
counters. So I go to find it. Finally, find
counters at Virtual Machine Settings's Hardware's Processors: at the right of Virtualization engine, found
Virtualize CPU performance counters. Uncheck it, solve it.
Hyper-v, found Virtualization engine's
Virtualize Intel VT-x/EPT or AMD-V/RVI, still uncheck it, solve it.