Available on Windows

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The most popular firewall on Windows

Comodo Internet Security is the free, multi-layered security application that keeps hackers out and personal information in.

Built from the ground upwards with your security in mind, CIS offers 360° protection by combining powerful Antivirus protection, an enterprise class packet filtering firewall, and an advanced host intrusion prevention system called Defense+. For both average and advanced users.

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  • garish fanatic

    刚刚上手

  • Asher expert
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    good.

  • Jaxynho fanatic

    strong wall

  • GOFORWORLD fanatic

    太强悍但是操作优化没outpost好

  • lefroy fanatic

    强大且复杂!

  • Solevator fanatic
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    Best firewall, ugly antivirus, good Defence+. I use it with MSE and my PC feels fine.

  • Computer Consultancy Amstelveen expert
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    Works also great on Windows 7

  • LaserWraith fanatic
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    This FREE security suite is very light on resources and memory. (About 4MB of memory! Norton IS uses sometimes 200MB!)

    Especially good for the advanced user.

  • Epitymbidia expert
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    This thing caused a serious APPCRASH problem on my system, which was unbelievably annoying. Not useful for me.

  • Jaxynho fanatic

    best firewall n 2009

  • stuffiwrote expert
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    I've recently stopped using this product. It gets itself overly confused too often for my liking. It's too intrusive as well when you initially run and train it.

    Let's be honest, Microsoft Security Essentials, Malwarebytes Anti Malware, Windows Firewall and a dollop of common sense are more than enough for the average home user.

  • محسن محمدی fanatic
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    I like This Program, really better than zone Alarm

  • Mystfit fanatic

    Pretty much the only package you need. First thing I install on a new Windows installation after Firefox.

  • littlewolf overlord
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    I was on the hunt for the best free firewall software on Windows and I think I finally found it with Comodo. It has most of the features of the non-free firewalls which is great because it can be simple for novice users but it can also be advanced enough for experts.

  • Neil García devotee
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    I use this firewall from three years ago, in XP and now in 7 Professional. It's cool, intercepts every strange conecction, doesn't use much RAM and works smoothly. I love this firewall :D

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Website: personalfirewall.comod...
Developer: COMODO
License: Free
Version: 4.0.129536.679
Rating: Features:
Interface:
Performance:
Price/value:
Overall:
Usage: 3 months, 1 week, 6 days, 11 hours, 50 minutes and 48 seconds
Usage since: 02 May 2007
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Popularity over the last 30 days (?)

COMODO Intern... vs.

Rank: #478