Microsoft Defender Alternatives

Microsoft Defender is described as 'Windows Security (known as Windows Defender Antivirus before Windows 10 May 2020 Update, Windows Defender before Windows 10 Creators Update, or Microsoft Defender Antivirus before Windows 11) is an anti-malware component of Microsoft Windows' and is a very popular Anti-Virus app in the security & privacy category. There are more than 100 alternatives to Microsoft Defender for a variety of platforms, including Windows, Mac, Android, Linux and iPhone apps. The best Microsoft Defender alternative is Malwarebytes Anti-Malware, which is free. Other great apps like Microsoft Defender are Avast Free Antivirus, ClamAV, Bitdefender Antivirus and Spybot - Search & Destroy.

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Alternatives
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Alternatives list

  1. InfBlocker icon
     1 like

    InfBlocker is a lightweight and effective security tool designed to protect your computer from viruses spread through infected USB flash drives. By blocking autorun.inf files and their associated executables, InfBlocker helps prevent malware from automatically executing when a...

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    Good alternative?
     
  2. Ultra Adware Killer is a powerful adware and malware remover for Windows, which has the ability to scan all the users in a system.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Windows
    Good alternative?
     
  3. ZHPCleaner icon
     5 likes

    The software requires no installation process, it allows transportation on removable devices. It could not be simpler, three buttons, "Scan", "clean" and "Report". A module allows to choose the lines you want to keep, including legitimate programs...

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  4. CS Anti-Virus icon
     2 likes

    Provide real time shield, process/memory scanner, file/path scanner, scheduled scans, automatic daily update and use the ClamAV database with over 720.000 virus signatures. CS Anti-Virus with the ClamAV engine is FREE. (GNU/GPL license).

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    Good alternative?
     
  5. VigiHunt icon
     1 like

    Free antivirus and cybersecurity software for Windows that protects against malware, ransomware, spyware, and online threats.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    Good alternative?
     
  6. SafeNetClub is an antivirus software that protects your PC against cyber threats. The application is connected with a realtime virus database to scan the system, all incoming traffic and files to avoid damage of the computer, spy attacks and data theft.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  7. The program consists of a collection of tools that monitor important areas of your computer, areas in which spyware and other malicious programs practically always leave some kind of trace when they sneak into your computer.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  8. Quick Heal Safeguards Your Digital Privacy. Every Click, Every Moment? Reclaim control over your digital footprint with real-time protection while browsing, banking, shopping, streaming, or gaming online.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    Good alternative?
     
  9. Gridinsoft Anti-Malware detects and removes viruses, ransomware, spyware, and other threats to secure your computer — without slowing it down.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  10. MalwareTerminator kills annoying browser toolbars with a single click! Many programs and download portals provide you not only with your requested software, but also with an unrequested browser toolbar.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  11. AFKSecurity is a lightweight local protection agent for Windows that complements antivirus. It scores suspicious behavior in real time using local AI + heuristics, includes ransomware-aware signals, and provides quarantine + history controls. No telemetry by default.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
  12. Sapience is a Windows security and visibility tool that surfaces unusual system behaviour in plain language. It highlights suspicious processes, unexpected outbound connections, scheduled task changes, and other security-relevant events.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Windows
    Good alternative?
     
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