Hypervisor not working/running on Windows

If your virtual machines stopped working on windows, example docker or any other emulators that uses virtualization, in my case it was due to Intel HAXM that was installed by the Android SDK which conflicted with Hyper V which also user Hypervisor and only either one of these two can exist at once. Even after uninstalling HAXM, Hypervisor did not seem to run, after restarting and turning Hyper V on and off for several times, and nothing worked, following steps fixed the issue.

Run CMD as administrator

Start > type cmd > right click on Command Prompt app icon and select Run as Administrator

Type bcdedit and enter

You will see at the end

hypervisorlaunchtype

If it is not set to Auto

Enter following command to set `hypervisorlaunchtype` to auto

bcdedit /set hypervisorlaunchtype auto