Windows Server 2016 OS | Docker Host - Cleanup

Step 1: Make sure host is not in swarm mode

docker swarm leave --force

Step 2: Remove all container networks on the system

docker network prune -f

Step 3: Remove All containers on the system

docker container prune -f

Step 4: Stop docker service

net stop docker  

Step 5: Clean up networking components on the container host

Get-NetNatStaticMapping | Remove-NetNatStaticMapping
Get-NetNat | Remove-NetNat
Get-ContainerNetwork | Remove-ContainerNetwork
Stop-Service hns 
del C:\ProgramData\Microsoft\Windows\HNS\HNS.data
Restart-Service hns

Step 6: Change StartupType of docker service to manual

Get-Service -Name docker | fl *
Set-Service -Name docker -StartupType Manual
Get-Service -Name docker | fl *

Step 7: Restart host

Restart-Computer

Step 8: Change StartupType of docker service to automatic

Get-Service -Name docker | fl *
Set-Service -Name docker -StartupType Automatic
Get-Service -Name docker | fl *

Note: You can also remove/uninstall unused/disabled network adapters of Windows Server 2016 OS host from Device Manager

Now your host machine is in clean state and you can start your docker windows service again

net start docker