How can I change the security key on the desktop app if changes using web UI??

Hi @prakharaug, if you need to change or remove your security key, you can do that at 1Password.com. Here's our quick guide on how to do that:

https://support.1password.com/security-key/#view-and-manage-your-security-keys

Let me know if this meets your needs - and if you need any customized support or would like help going forward, let us know and we'll be happy to discuss further by email. 👍 I hope this is helpful!