balena-cli/INSTALL-WINDOWS.md

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# balena CLI Installation Instructions for Windows
These instructions are for the recommended installation option. Advanced users may also be
interested in [advanced installation options](./INSTALL-ADVANCED.md).
Selected operating system: **Windows**
1. Download the installer from the [latest release
page](https://github.com/balena-io/balena-cli/releases/latest).
Look for a file name that ends with "-installer.exe":
`balena-cli-vX.Y.Z-windows-x64-installer.exe`
2. Double click on the downloaded file to run the installer and follow the installer's
instructions.
3. Check that the installation was successful:
- Click on the Windows Start Menu, type PowerShell, and then click
on Windows PowerShell.
- On the command prompt, type `balena version` and hit Enter. It should display
the version of the balena CLI that you have installed.
No further steps are required to run most CLI commands. The `balena ssh`, `scan`, `build`,
`deploy` and `preload` commands may require additional software to be installed, as
described below.
## Additional Dependencies
### build and deploy
These commands require [Docker](https://docs.docker.com/install/overview/) or
[balenaEngine](https://www.balena.io/engine/) to be available on a local or remote
machine. Most users will follow [Docker's installation
instructions](https://docs.docker.com/install/overview/) to install Docker on the same
workstation as the balena CLI. The [advanced installation
options](./INSTALL-ADVANCED.md#additional-dependencies) document describes other possibilities.
### balena ssh
The `balena ssh` command requires the `ssh` command-line tool to be available. Microsoft started
distributing an SSH client with Windows 10, which is automatically installed through Windows
Update. To check whether it is installed, run `ssh` on a Windows Command Prompt or PowerShell. It
can also be [manually
installed](https://docs.microsoft.com/en-us/windows-server/administration/openssh/openssh_install_firstuse)
if needed. For older versions of Windows, there are several ssh/OpenSSH clients provided by 3rd
parties.
The `balena ssh` command also requires an SSH key to be added to your balena account: see [SSH
Access documentation](https://www.balena.io/docs/learn/manage/ssh-access/). The `balena key*`
command set can also be used to list and manage SSH keys: see `balena help -v`.
### balena scan
The `balena scan` command requires a multicast DNS (mDNS) service like Apple's Bonjour.
Many Windows machines will already have this service installed, as it is bundled in popular
applications such as Skype (Wikipedia lists [several others](https://en.wikipedia.org/wiki/Bonjour_(software))).
Otherwise, Bonjour for Windows can be downloaded and installed from: https://support.apple.com/kb/DL999
### balena preload
Like the `build` and `deploy` commands, the `preload` command requires Docker.
Preloading balenaOS images for some older device types (like the Raspberry
Pi 3, but not the Raspberry 4) requires Docker to support the [AUFS storage
driver](https://docs.docker.com/storage/storagedriver/aufs-driver/). Unfortunately, Docker Desktop
for Windows and macOS dropped support for the AUFS filesystem in Docker CE versions greater than
18.06.1. The present workarounds are to either:
* Install the balena CLI on Linux (e.g. Ubuntu) with a virtual machine like VirtualBox.
This works because Docker for Linux still supports AUFS. Hint: if using a virtual machine,
copy the image file over, rather than accessing it through "file sharing", to avoid errors.
* Downgrade Docker Desktop to version 18.06.1. Link: [Docker CE for
Windows](https://docs.docker.com/docker-for-windows/release-notes/#docker-community-edition-18061-ce-win73-2018-08-29)
We are working on replacing AUFS with overlay2 in balenaOS images of the affected device types.