Microsoft 365 Explained

Created by BRUCE DAVIS, Modified on Thu, 28 Nov at 2:25 PM by BRUCE DAVIS



Microsoft 365 is a versatile suite of productivity tools used by individuals, businesses, and organizations worldwide. This FAQ article breaks down everything you need to know about Microsoft 365.


1. What is Microsoft 365?

Microsoft 365 is a subscription-based service that provides access to Microsoft Office apps like Word, Excel, PowerPoint, and Outlook. It also includes cloud storage via OneDrive, collaboration tools like Microsoft Teams, and advanced security features.

Key Features:

  • Office apps (Word, Excel, PowerPoint, Outlook, etc.)
  • Cloud storage with OneDrive (1 TB or more per user)
  • Collaboration tools (Teams, SharePoint)
  • Email hosting with custom domains (for business plans)
  • Regular updates and new features

2. What is the difference between Microsoft 365 and Office 2021?

Microsoft 365Office 2021
Subscription-based (monthly or yearly)One-time purchase
Always updated with the latest featuresNo future updates or feature additions
Includes cloud storage (OneDrive)No cloud storage
Multiple device installs (per user)Install limited to 1 device (per license)

3. What plans does Microsoft 365 offer?

Microsoft 365 provides plans tailored to different users:

For Individuals and Families

  • Microsoft 365 Personal: One user, up to 5 devices.
  • Microsoft 365 Family: Up to 6 users, each with their own account.

For Businesses

  • Microsoft 365 Business Basic: Cloud-based tools (Teams, SharePoint, web-only apps).
  • Microsoft 365 Business Standard: Includes desktop Office apps, Teams, and email.
  • Microsoft 365 Business Premium: Adds advanced security and device management.

For Enterprises

  • Microsoft 365 E3/E5: Enhanced security, compliance, and analytics for larger organizations.

4. What apps and services are included in Microsoft 365?

Core Office Apps

  • Word: Word processing and document creation.
  • Excel: Spreadsheets, data analysis, and visualization.
  • PowerPoint: Presentation design and delivery.
  • Outlook: Email and calendar management.

Collaboration Tools

  • Teams: Chat, video calls, and team collaboration.
  • SharePoint: File sharing and intranet sites.
  • OneDrive: Cloud storage for personal and shared files.

Other Apps

  • Publisher (Windows only): Desktop publishing.
  • Access (Windows only): Database management.
  • Planner: Task management for teams.
  • To Do: Personal task management.

5. How does cloud storage work with Microsoft 365?

Each Microsoft 365 user gets 1 TB of OneDrive storage (or more with some plans). This allows you to:

  • Store, access, and share files from any device.
  • Collaborate on files in real time using Office apps.
  • Automatically back up and sync files across devices.

6. Can I use Microsoft 365 offline?

Yes, you can use the installed Office apps offline. However, you’ll need an internet connection for:

  • Initial installation and activation.
  • Syncing files to OneDrive.
  • Receiving updates and new features.

7. How many devices can I install Microsoft 365 on?

You can install Microsoft 365 on up to 5 devices per user, including PCs, Macs, tablets, and smartphones.


8. Is Microsoft Teams included in Microsoft 365?

Yes, Microsoft Teams is included in most Microsoft 365 plans. It provides:

  • Video and audio conferencing.
  • Team chat and collaboration.
  • Integration with Office apps like Word and Excel.

9. Is Microsoft 365 secure?

Yes, Microsoft 365 offers advanced security features:

  • Data encryption in transit and at rest.
  • Multi-factor authentication (MFA) for account security.
  • Defender for Office 365 (business/enterprise plans) for phishing and malware protection.

10. What happens if I cancel my subscription?

If you cancel your Microsoft 365 subscription:

  • You can no longer edit or create new documents in the Office apps.
  • You retain read-only access to your files.
  • Cloud storage on OneDrive reverts to a free 5 GB plan.

11. Can I switch plans later?

Yes, you can upgrade or downgrade your Microsoft 365 plan at any time. Switching plans may require pro-rated billing adjustments.


12. How often does Microsoft 365 update?

Microsoft 365 updates frequently with new features, bug fixes, and security improvements. Updates are automatic and included in your subscription.


13. Can I use Microsoft 365 for business email?

Yes, business plans include professional email hosting with your company’s custom domain (e.g., yourname@yourcompany.com).


14. What support is available for Microsoft 365?

Microsoft 365 subscribers have access to:


15. How do I install Microsoft 365?

You can download and install Microsoft 365 on your devices from the Microsoft 365 Account Portal.

  1. Log in with your Microsoft account.
  2. Click Install Office and follow the on-screen instructions.

Additional Resources


By understanding these common questions, you’ll be better equipped to choose, use, and manage Microsoft 365. Let us know if you need further assistance!

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