Windows feature Hyper-V conflicts with VMWorkstation. My VMWorkstation version is current at 15.5.1 build-15018445. Hyper-V is required to run a Docker container on Win10.
The result, turn off Hyper-V feature and reboot to run VMWorkstation; turn on Hyper-V and reboot to run PanHandler/Docker.
There is a powershell command to turn Hyper-V feature on/off but does not get around the reboot.
Disable in Powershell with this command: < bcdedit /set hypervisorlaunchtype off >
Reenable Hyper-v with command: < bcdedit /set hypervisorlaunchtype auto >