Email Notification: Once you have completed your purchase, DigitalOcean will email you a notification containing your root password at a later date, usually within 20 minutes. This is to ensure secure transmission of the password and to avoid transmitting the password on the order page where sensitive information may be intercepted.

Root Login: After you have received the email notification, you can connect to your Droplet through a terminal window using an SSH client (e.g., Xshell.) When logging in, you will be asked to enter the username of your root account (usually "root") as well as the root password you just received.

Changing the root password: Once you have successfully logged into your Droplet, you will be prompted to confirm the root password you have just received and asked to enter a new root password. Follow the instructions to enter the new password and then reconfirm to ensure accuracy and consistency.

By completing these steps, you will be able to successfully change your Droplet's root password, thus ensuring the security and administration of your Droplet.