What is the first step in encrypting an email in MS Outlook?

In the process of encrypting an email in MS Outlook, the first step is to open a new message window. This is essential because you need to initiate a new email message before you can compose it and apply any encryption settings.

Opening a new message window is the foundational step that allows you to enter the recipient's email address, subject, message body, and to set up any security features, such as encryption. After the message window is open, you can then move on to composing your message and applying the encryption as necessary. Encryption cannot be applied until there is a message to protect, making this step a prerequisite for any subsequent actions regarding the email's content.