Add more info re: Hyper-V driver for Docker Machine on Windows, cleanup, link topics together (#4609)

* add more links and info re: Hyper-V driver for Docker Machine on Windows

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* added info on where Machine data lives

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* added information about the Hyper-V Manager

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* linked between docker-machine create command and other relevant topics

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* copyedits

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* copyedits, added Examples heading to create driver

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

* clarifed docker-machine create example

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

docker-for-windows/troubleshoot.md

@@ -325,6 +325,20 @@ off".
 
 ![Hyper-V on Windows features](images/hyper-v-enable-status.png )
 
+#### Hyper-V driver for Docker Machine
+
+Docker for Windows comes with the legacy tool Docker Machine which uses the old
+[`boot2docker.iso`](https://github.com/boot2docker/boot2docker){:
+target="_blank" class="_"}, and the [Microsoft Hyper-V
+driver](/machine/drivers/hyper-v.md) to create local virtual machines. _This is
+tangential to using Docker for Windows_, but if you want to use Docker Machine
+to create multiple local VMs, or to provision remote machines, see the [Docker
+Machine](/machine/index.md) topics. We mention this here only in case someone is
+looking for information about Docker Machine on Windows, which requires that
+Hyper-V is enabled, an external network switch is active, and referenced in the
+flags for the `docker-machine create` command [as described in the Docker
+Machine driver example](/machine/drivers/hyper-v.md#example).
+
 ### Virtualization must be enabled
 
 In addition to [Hyper-V](#hyper-v), virtualization must be enabled.

machine/drivers/hyper-v.md

@@ -134,3 +134,17 @@ you can create these swarm nodes: `manager1`, `worker1`, `worker2`.
     docker-machine create -d hyperv --hyperv-virtual-switch "Primary Virtual Switch" worker1
     docker-machine create -d hyperv --hyperv-virtual-switch "Primary Virtual Switch" worker2
     ```
+
+## Where to go next
+
+As a point of interest, the virtual machines you create with the
+[`docker-machine create`](/machine/reference/create.md) command show up in the
+Hyper-V Manager under "Virtual Machines", but you need to manage them with
+[`docker-machine`](/machine/reference/index.md) commands not through the Hyper-V
+Manager.
+
+To get started using `docker-machine` commands, see these topics:
+
+*  [Run containers and experiment with Machine commands](/machine/get-started.md#run-containers-and-experiment-with-machine-commands) and the introductory topics that follow
+
+* [Docker Machine commmand line reference](/machine/reference/index.md)

machine/get-started.md

@@ -126,7 +126,7 @@ choose another name for this new machine.
 
     * If you are using Toolbox on Mac, Toolbox on older Windows systems without Hyper-V, or Docker for Mac, use `virtualbox` as the driver, as shown in this example. (The Docker Machine VirtualBox driver reference is [here](drivers/virtualbox.md).) (See [prerequisites](get-started.md#prerequisite-information) above to learn more.)
 
-    * On Docker for Windows systems that support Hyper-V, use the `hyperv` driver as shown in the [Docker Machine Microsoft Hyper-V driver reference](drivers/hyper-v.md). (See [prerequisites](get-started.md#prerequisite-information) above to learn more.)
+    * On Docker for Windows systems that support Hyper-V, use the `hyperv` driver as shown in the [Docker Machine Microsoft Hyper-V driver reference](drivers/hyper-v.md) and follow the [example](/machine/drivers/hyper-v.md#example), which shows how to use an external network switch and provides the flags for the full command. (See [prerequisites](get-started.md#prerequisite-information) above to learn more.)
 
             $ docker-machine create --driver virtualbox default
             Running pre-create checks...

machine/install-machine.md

@@ -94,13 +94,21 @@ To uninstall Docker Machine:
 
     To remove each machine individually: `docker-machine rm <machine-name>`
 
-    To remove all machines: `docker-machine rm -f $(docker-machine ls -q)`
+    To remove all machines: `docker-machine rm -f $(docker-machine ls -q)` (you might need to use `-force` on Windows)
 
   Removing machines is an optional step because there are cases where you might
   want to save and migrate existing machines to a [Docker for
   Mac](/docker-for-mac/index.md) or [Docker for
   Windows](/docker-for-windows/index.md) environment, for example.
 
+>**Note**: As a point of information, the `config.json`, certificates,
+and other data related to each virtual machine created by `docker-machine`
+is stored in `~/.docker/machine/machines/` on Mac and Linux and in
+`~\.docker\machine\machines\` on Windows. We recommend that you do not edit or
+remove those files directly as this will only affect information for the Docker
+CLI, not the actual VMs, regardless of whether they are local or on remote
+servers.
+
 ## Where to go next
 
 -   [Docker Machine overview](overview.md)

machine/reference/create.md

@@ -8,6 +8,17 @@ Create a machine.  Requires the `--driver` flag to indicate which provider
 (VirtualBox, DigitalOcean, AWS, etc.) the machine should be created on, and an
 argument to indicate the name of the created machine.
 
+> Looking for the full list of available drivers?
+>
+>For a full list of drivers that work with `docker-machine create` and
+information on how to use them, see [Machine
+drivers](/machine/drivers/index.md).
+{: .important}
+
+## Example
+
+Here is an example of using the `--virtualbox` driver to create a machine called `dev`.
+
 ```none
 $ docker-machine create --driver virtualbox dev
 Creating CA: /home/username/.docker/machine/certs/ca.pem