To unregister Alexa from your account, go to alexa.com and click on the three lines in the top left corner of the home page. Under “My Account,” click on “Settings.” On the “Settings” page, under “General,” click on “Unregister.” You will be asked to confirm your decision to unregister Alexa.
To change your Alexa account, go to alexa.com/account and sign in. On the left side of the page, click My Account and then Change Your Account Password. Enter your new password and confirm it.
You can have up to five accounts on Alexa.
First, go to alexa.com and sign in. Under “Your Account,” click on “Reset your voice.” Follow the instructions to reset your voice.