Changing your Uplay password without access to the registered email can be a tricky situation, but there are steps you can take to ensure the security of your account. Follow these steps to change your Uplay password without email:

1. Go to the Uplay website and click on 'Forgot your password?'
2. Enter your username or registered email address
3. When prompted for the email verification, click on 'Can't access this email?'
4. Choose the 'I don't have access to this email anymore' option
5. Follow the on-screen instructions to verify your identity through other means such as security questions, phone number, or account recovery process
6. Once verified, you can set a new password for your Uplay account

It's important to update your security settings and ensure that your account is protected from any unauthorized access in the future. Remember to keep your new password secure and avoid sharing it with anyone.