Yubikey in windows client?

Hi @Yeraze, thanks for letting us know about this. I understand that the security key feature hasn't quite worked for you yet. Let's fix that!

To start, here's our quick guide to setting up security keys with your 1Password account, in case you hadn't seen it already: https://support.1password.com/security-key/

Does that process work for you? If not, can you tell us at what step in the process things go awry? With that established, we should be able to chase down the problem for you and set things to rights.