Unable to start Dokcer, using Docker for Windows

I am unable to start Dockers. I am using Docker for windows. Below is the error.

Unable to start: The running command stopped because the preference variable "ErrorActionPreference" or common parameter is set to Stop: 'MobyLinuxVM' failed to start.

Failed to start the virtual machine 'MobyLinuxVM' because one of the Hyper-V components is not running.

'MobyLinuxVM' failed to start. (Virtual machine ID 99B628F5-2A02-405C-9E4A-5D33C42B6FFB)

The Virtual Machine Management Service failed to start the virtual machine 'MobyLinuxVM' because one of the Hyper-V components is not running (Virtual machine ID 99B628F5-2A02-405C-9E4A-5D33C42B6FFB).
at Start-MobyLinuxVM, <No file>: line 287
at <ScriptBlock>, <No file>: line 382
   at Docker.Backend.ContainerEngine.Linux.DoStart(Settings settings)
   at Docker.Backend.ContainerEngine.Linux.Start(Settings settings)
   at Docker.Core.Pipe.NamedPipeServer.<>c__DisplayClass8_0.<Register>b__0(Object[] parameters)
   at Docker.Core.Pipe.NamedPipeServer.RunAction(String action, Object[] parameters)

Have you install HyperV ?

Yes, i have enabled that feature in Windows.