Remove Old Phone from Windows Passkey
Here is an easy way to remove your old phone from windows passkey
1: Open Registry editor or regedit, Press Win + R and type regedit and press enter.
Now navigate to the FIDO Key, Go to
HKEY_USERS\S-1-5-20\Software\Microsoft\Cryptography\FIDO.Delete the Device Key under
LinkedDevicesFind the folder with the unique ID of your device and delete it.
End of Article, feel free to reach out to me if you notice any errors or typos and I will gladly adjust. Retr0
Written on July 17, 2025