Trial user guide: Microsoft 365 Business Premium


Welcome to the Microsoft 365 Business Premium trial user guide! This guide will help you make the most of your free trial. You can see firsthand how Microsoft Business Premium increases productivity and helps safeguard your organization with advanced security capabilities. Use this guide to set up your threat protection features, analyze detected threats, and respond to cyberattacks.

1. Set up the Microsoft 365 Business Premium trial

  • Set up your trial!

After you’ve initiated the trial and completed the setup process, it can take up to two hours for changes to take effect.

  • Turn on Multi-Factor Authentication (MFA)

You can use security defaults to get set up right away, or use Conditional Access policies to meet more stringent requirements.

  • Use your preset security policies

These policies represent a baseline protection profile that’s suitable for most users. Standard protection includes:

    • Safe Links, Safe Attachments and Anti-Phishing policies that are scoped to the entire tenant or the subset of users you may have chosen during the trial setup process. (Your trial subscription is for up to 25 users.)
    • Protection for productivity apps, such as SharePoint, OneDrive, Microsoft 365 Apps, and Microsoft Teams.

2. Add a domain

When you try or buy Microsoft 365 Business Premium, you have the option of using a domain you own, or buying one during the sign-up process.


If you purchased a new domain when you signed up, your domain is all set up and you can move to Add users and assign licenses. Go to the admin center (

  • From the admin center menu, choose Setup to start the wizard.
  • Select Set up email with a custom domain and then.
  • Follow the rest of the steps in the wizard to complete the process.
  • Follow the steps in the wizard to create DNS records at any DNS hosting provider for Office 365 that verifies you own the domain. If you know your domain host
  • If your hosting provider is GoDaddy or another host enabled with domain connect, you’ll be asked to sign in and let Microsoft authenticate on your behalf automatically.


If you purchased a domain during the sign-up, you will not see the Add a domain step here. Go to Add users instead.

3. Onboard and protect devices

Microsoft 365 Business Premium includes Defender for Business, a new security solution to protect devices.

  • Go to the Microsoft 365 Defender portal ( and sign in.
  • Go to Assets > Devices. If Defender for Business isn’t already set up, you will be prompted to run the setup wizard.
  • Onboard devices.
  • Review your security policies.

4. Use Microsoft 365 Apps on devices

  • First, you’ll need to install Microsoft 365 Apps.
  • Go to and sign in.
  • Create an Office document, such as a Word document.
  • Share a document with a team member.

5. Start using the Microsoft 365 Defender portal

  • Access the Microsoft 365 Defender portal at
  • Take some time to familiarize yourself with the portal.
  • Now, assess your security posture, and see how you can improve your score.
  • Learn how to respond to a security incident.
  • Lastly, review remediation actions.

Source: Microsoft

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