I got the error below by following the link
PS C:\WINDOWS\system32>docker run hello-world
C:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from daemon: CreateComputeSystem 3ec5266f15582269f9876a9ad84ac857467ebf19d518b595d9605f555fe6c33a: The virtual machine could not be started because a required feature is not installed.
(extra info: {"SystemType":"Container","Name":"3ec5266f15582269f9876a9ad84ac857467ebf19d518b595d9605f555fe6c33a","Owner":"docker","IgnoreFlushesDuringBoot":true,"LayerFolderPath":"C:\ProgramData\Docker\windowsfilter\3ec5266f15582269f9876a9ad84ac857467ebf19d518b595d9605f555fe6c33a","Layers":[{"ID":"73eddd39-9cb1-593d-9bb2-bbee00e7cc41","Path":"C:\ProgramData\Docker\windowsfilter\4b5034da740643442178ee2cc90c7bece0f10a7027cbc607a3f5f652d756af3c"}],"HostName":"3ec5266f1558","HvPartition":true,"EndpointList":["06BB6BEB-EFEC-4DBB-81EA-202096143DCA"],"HvRuntime":{"ImagePath":"C:\ProgramData\Docker\windowsfilter\4b5034da740643442178ee2cc90c7bece0f10a7027cbc607a3f5f652d756af3c\UtilityVM"},"AllowUnqualifiedDNSQuery":true}).
Windows 10 Pro version 1903
Docker version 18.09.2, build 6247962