Under some rare circumstances, Docker can encounter errors of the form:

Unable to start Docker HNS failed with error

When this occurs, follow these steps to restore Docker there are two ways to potentially address it:

Option 1

1. Stop the Docker Engine service by going to Services and stopping the service
2. Run the following PowerShell command from an administrator PowerShell:

Get-ContainerNetwork | Remove-ContainerNetwork

3. Start the Docker Engine service from the Services manager
4. Perform the Cloudmersive Private Cloud Restart command by navigating to the Cloudmersive Management Portal > Private Cloud, selecting your Private Cloud node, and copying the Restart command and pasting it into an Administrator PowerShell terminal

Option 2

Run this command:

docker ps -a

You will see a list of containers. Now run this command, replacing containerid with the CONTAINER ID from the output of the previous command:

docker rm containerid