> For the complete documentation index, see [llms.txt](https://docs.k9.io/key9-identity/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.k9.io/key9-identity/ssh/installation-and-setup/windows-powershell-with-yubikey-fido2-protected-ssh-keys.md).

# Windows Powershell with Yubikey/FIDO2-protected SSH keys

These instructions are for using OpenSSH within Windows Powershell (Windows Terminal) with a Yubikey to protected your SSH keys (FIDO2). 

## The advantages Powershell with OpenSSH

1. The easiest and fastest way to use Yubikey to protect your SSH keys. 
2. Setup is straight forward and simple.
3. Powershell (Windows Terminal) works well.  It has good emulation,  tab support, etc. 
4. Powershell has direct access to the hardware.

## The disadvantages Powershell with OpenSSH

1. Not compatible with Windows Subsystem for Linux (WSL),  Cygwin, etc.