This video presents how to setup Microsoft account to support FIDO2 login to MS account. By using password, user is requested to login to Microsoft account site. As one of Security options, users can select security key setting and register ThinC-AUTH to cloud. User can also register the key name to the cloud. Once security key is registered, users need not use password anymore. But Microsoft current system can select password login or FIDO2 login in the login form.