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Head-to-head · Antivirus Software

Microsoft Defender Antivirus vs 360 Total Security

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Microsoft Defender Antivirus #14 in Antivirus Software 7.9/10 Free plan Free plan✓ 1 of 3 features Visit Microsoft
360 Total Security #58 in Antivirus Software 4.2/10 Free plan Free plan✓ 1 of 3 features Visit site

Microsoft Defender Antivirus leads on 0 checks, 360 Total Security on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft Defender Antivirus · 7.9/10
  • Free planboth

Microsoft Defender Antivirus scores higher on our rubric for antivirus software: 7.9 against 4.2 out of 10; our editors rank them #14 and #58.

On protection scope, 360 Total Security gives you Complete security where Microsoft Defender Antivirus offers Antivirus.

Microsoft Defender Antivirus is the better fit for free Windows antivirus protection. 360 Total Security is the better fit for free users wanting cleanup and business controls.

  • Microsoft Defender Antivirus fits best

    Free Windows antivirus protection

  • 360 Total Security fits best

    Free users wanting cleanup and business controls

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Side by side

Feature Microsoft Defender Antivirus 7.9/10 Visit ↗ 360 Total Security 4.2/10 Visit ↗
At a glance
Editor score 7.9 4.2
Ranking #14 in Antivirus Software #58 in Antivirus Software
Best for Free Windows antivirus protection Free users wanting cleanup and business controls
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows Windows
Support Docs Email, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Microsoft Defender Antivirus 1/3 · 360 Total Security 1/3
Ransomware protection ✓ ✓
Parental controls — —
Password manager — —
Specs
Protection scope Antivirus Complete security
Device limit Not checked yet 1 devices
Supported platforms Windows 10, Windows 11 Windows
Our review
Pros
  • Always-on protection with quick, full, custom, and offline scans
  • Controlled folder access adds ransomware-focused protection
  • SmartScreen and Windows Firewall integration extend Windows protection
  • Free Essential edition includes virus detection, cleanup, and sandboxing.
  • Multiple security engines support malware, phishing, and ransomware protection.
  • Business tools centralize device management, policies, and threat alerts.
Cons
  • Works on Windows 10 and Windows 11 devices only
  • Focused on antivirus rather than a broader standalone security suite
  • Designed for Windows devices instead of multi-platform coverage
  • Coverage is focused on Windows, Android, iOS, and Chrome extension.
  • Premium adds Cleanup Pro but does not broaden the listed platform coverage.
  • The suite may offer more utilities than users seeking antivirus-only protection need.
Our verdict

Microsoft Defender Antivirus is a free, real-time antivirus product built into Windows. It is designed for personal Windows 10 and Windows 11 devices, protecting against viruses, malware, spyware, and other threats without a separately…

Read the review →

360 Total Security is an antivirus and PC security suite aimed at Windows users who want malware protection alongside cleanup and system utilities. Its Essential edition is free and includes virus detection, full protection,…

Read the review →
  1. Microsoft Defender AntivirusAntivirus Software 7.9Free plan
  2. 360 Total SecurityAntivirus Software 4.2Free plan

Strengths and trade-offs

  • Microsoft Defender Antivirus — where it wins

    • Always-on protection with quick, full, custom, and offline scans
    • Controlled folder access adds ransomware-focused protection
    • SmartScreen and Windows Firewall integration extend Windows protection

    Where it doesn't

    • Works on Windows 10 and Windows 11 devices only
    • Focused on antivirus rather than a broader standalone security suite
    • Designed for Windows devices instead of multi-platform coverage
  • 360 Total Security — where it wins

    • Free Essential edition includes virus detection, cleanup, and sandboxing.
    • Multiple security engines support malware, phishing, and ransomware protection.
    • Business tools centralize device management, policies, and threat alerts.

    Where it doesn't

    • Coverage is focused on Windows, Android, iOS, and Chrome extension.
    • Premium adds Cleanup Pro but does not broaden the listed platform coverage.
    • The suite may offer more utilities than users seeking antivirus-only protection need.
  • Microsoft Defender Antivirus7.9/10 · Free plan

    A free Windows antivirus with always-on protection and ransomware controls.

    Visit MicrosoftFull verdict →
  • 360 Total Security4.2/10 · Free plan

    A broad free security suite with useful cleanup, protection, and device-management tools.

    Visit siteFull verdict →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update