I run my VMs using vmware player for multiple operating system like Ubuntu, CentOS, Fedora, Suse, Mint Linux. One fine day I noticed this error “VMware Player and Hyper-V are not compatible” from the vmplayer while starting Ubuntu. This was bit surprising for me as I had run the same vm couple of times.

I realized that disabling the hyper-V could fix this problem, but I was still curious, as of why could this start all of sudden?

The fix was simple as I said, to disable hyper-V

1

bcdedit /set hypervisorlaunchtype off

Rebooting the window’s machine after running above command from command prompt with admin privilege fixes the problem.