MS365 Built in Anti Virus and Malware protection

For Microsoft 365 Personal, built-in protection is generally adequate for everyday use.

What is included:

• Microsoft Defender is included with Microsoft 365 Personal at no extra cost.
• On Windows 10 and Windows 11, Microsoft Defender Antivirus is built into Windows and provides ongoing protection against viruses, malware, spyware, and ransomware.
• Microsoft 365 also includes built-in protection for email and cloud content:
  • Outlook.com scans attachments and checks links for viruses and phishing.
  • OneDrive is part of the protection and supports file recovery scenarios.

Important guidance:

• Running multiple anti-malware apps at the same time is not recommended. It can slow the system down or make it unstable.
• If another company’s antivirus is installed, Microsoft Defender can automatically turn itself off.

Practical conclusion:

• For normal home use, no additional antivirus is usually required.
• Keep Microsoft Defender and Windows Update enabled and up to date.
• Avoid opening unexpected attachments or links, and keep Microsoft Edge SmartScreen enabled for added protection.
• An additional security product is only worth considering if extra non-antivirus features are specifically needed.

References:

• Microsoft 365 advanced protection
• Getting started with Microsoft Defender
• Better together: Microsoft Defender Antivirus and Office 365
• Protect my PC from viruses