Here goes the third part of the series on在这里不用的第三部分系列 compared and tested比较和测试 and this time we picked up 5 Popular Free Anti virus softwares.这一次，我们挑选了5流行的免费反病毒软件。 Windows users and viruses are like chums, who keep playing Hide and Seek, with each other, and somehow the only tool to win this battle is, Antivirus Softwares. Windows用户和病毒就像chums ，谁打下去捉迷藏，与对方，并以某种的唯一工具赢得这场战斗，防病毒软件。 In this post I am trying to compare the five most preferred free anti virus softwares available on the Internet在这个后我想比较五个最喜欢免费的反病毒软件在互联网上提供

AVG Free Edition平均免费版

AVG is the well-known antivirus.平均值是众所周知的杀毒软件。 AVG is available free-of-charge to home users for the life of the product.平均可免费向家庭用户对生活的产品。 It is easy to use and will not slow your system down ie low system resource requirements.它易于使用，并且不会放慢您的系统下跌即低系统所需的资源。

Features of AVG 特征的AVG

• Automatic update functionality, update files can be downloaded and transported to a computer which doesn’t have an Internet connection.自动更新功能，更新文件可以下载，并运送到计算机没有互联网连接。
• The AVG Resident Shield, which provides real-time protection as files are opened and programs are run居民的平均盾构，它提供实时的保护档案是开放和程序运行
• The AVG E-mail Scanner, which protects your e-mail该平均值电子邮件扫描仪，它可保护您的电子邮件
• The AVG On-Demand Scanner, which allows the user to schedule and perform manual tests在平均按需扫描仪，它使用户能够安排和执行测试手册
• Free Virus Database Updates for the lifetime of the product免费的病毒数据库更新的寿命的产品
• AVG Virus Vault for safe handling of infected files平均病毒库的安全处理受感染的文件

The best things about AVG Free Edition are “Easy to Use” and “Lightweight”.最好的东西的AVG免费版是“易于使用”和“轻量级” 。 Scheduler has few options as compared to other Antivirus Softwares, but sufficient enough as far as home use is concerned.调度很少选择相对于其他防病毒软件，但足以尽可能家庭使用的问题。

Drawback of AVG 缺陷的AVG

I have realized that at the time when AVG is downloading updates, it consumes the max speed of your Internet connection for itself, leaving you face a substantial decrease in your connection, but that’s just a matter of few minutes ie 2 to 5 minutes我已经意识到的时候平均是下载更新，它消耗的最大速度为您的Internet连接为自己，留下你面对大量减少您的连接，但是这只是一个时间的问题几分钟即2到5分钟

Download and Watch Video for AVG Free Edition下载和观看录像的AVG免费版 . 。

Avast! Avast ！ Home Edition家庭版

Avast! Avast ！ Home Edition is the free antivirus for home noncommercial use - scans for viruses, worms and Trojans.家庭版是免费的防毒家庭非商业性使用-扫描病毒，蠕虫和特洛伊木马。 It has a media player-like interface.它有一个媒体播放器类似的界面。 Updates are incremental and frequently made available for manual or scheduled download.更新是渐进的和经常提供了手动或预定的下载。

Features 特征

• Simple User Interface-Memory test during the program startup, Simple and easy working with the scan results - actions with infected files etc.简单的用户界面，在记忆测试程序的启动，简易的工作与扫描结果-行动与受感染的文件等
• Standard resident protection-Generic SMTP/POP3/IMAP4 scanner, Specific MS Outlook plugin标准驻地保护通用SMTP/POP3/IMAP4扫描器，具体质谱的Outlook插件
• Network Shield-analyses all network traffic and scans it for malicious contents.网络盾构分析所有网络流量并扫描它的恶意内容。
• Automatic updates自动更新
• Virus Chest - The Virus Chest can be thought of as a folder on your disk drive, having special properties that make it a safe, isolated place suitable for storing certain files.病毒胸部-胸部的病毒可以被认为是一个文件夹在您的磁盘驱动器，具有特殊属性，使它成为一个安全，孤立地适用于某些类型的文件存储。 You can work with the files in the Chest, though with some security restrictions.您可以与工作中的档案公益金，但一些安全限制。
• System Integration- integrates with the Windows Explorer right click menu and also includes a special screen saver which is able to scan your system while your computer is not in use系统集成，集成了Windows资源管理器右键菜单，还包括一个特殊的屏幕保护程序是能够扫描您的系统，而您的电脑在不使用
• Support for 64-bit Windows支持64位Windows

Drawback 出口退税

According to my experience its not as lightweight as AVG, but still is quite lightweight and smooth.根据我的经验，其不一样轻巧的AVG ，但仍是相当轻巧和顺利进行。 Scanning the whole drive takes longer as compared to AVG.整个扫描硬盘需要花费较长的时间比较平均。

You can download a 60 days demo, if you would like to continue free usage beyond that time, just register from the home page to obtain a free activation key by email, this key expires after an year, then again you can get a new key.您可以下载一个60天的演示，如果您想继续免费使用以外的时间，只要登记在主页上获取免费的激活密钥通过电子邮件，这一关键届满后一年，然后又可以得到一个新的关键。

Download and Watch Video for Avast!下载和观看视频的Avast ！ Home Edition.家庭版。

ClamWin

ClamWin is another free antivirus on this list. ClamWin是另一个免费防毒在此名单中。 It comes with an easy installer and is open source code at no cost.它配备了一个易于安装和开放的源代码在任何费用。 The user interface is quite simple to use, being very lightweight is another virtue of this tool.用户界面非常简单易用，非常轻便的是另一个凭借此工具。

Features of Clamwin 特点Clamwin

• Scanning Scheduler.扫描调度。
• Automatic Virus Database Updates.自动更新病毒数据库。 ClamAV team updates Virus Databases on a regular basis. ClamAV团队更新病毒数据库的定期。
• Standalone Virus Scanner.单机病毒扫描器。
• Context Menu Integration to Microsoft Windows Explorer; Addin to Microsoft Outlook.上下文菜单集成到Microsoft Windows资源管理器;增益到Microsoft Outlook 。

Drawback: 缺点：

ClamWin does not include an on access real-time scanner, that is, you need to manually scan a file in order to detect a virus, which reduces its fan-following, as compared to its counterparts ClamWin并不包括获得实时扫描，也就是说，您需要手动扫描文件，以检测病毒，从而降低其扇以下，而其对应

Download下载 ClamWin

Avira AntiVir查杀AntiVir

Avira AntiVir is effective protection against computer viruses.查杀AntiVir是有效的保护，防止电脑病毒。 It constantly and rapidly scans your computer for malicious programs.它不断地和迅速地扫描计算机中的恶意程序。 Actions include repair, delete, block, rename and quarantine programs or files.行动包括修复，删除，块，重命名和检疫程序或文件。 AntiVir also features enhanced protection against unknown boot-sector viruses. AntiVir还具有加强保护，防止未知的引导扇区病毒。

Through the permanent update of the detection engine, the protection is ensured constantly: the user can set the product to download any updates when available, thus keeping you clean and safe.通过常设更新检测引擎，保护是保证不断：用户可以设置产品下载任何更新可用时，从而使您清洁和安全。

Features 特征

• Extensive Malware Recognition of viruses, Trojans, backdoor programs, worms, etc.广泛的恶意软件识别病毒，木马，后门程序，蠕虫等
• Automatic incremental updates of antivirus signatures, engine and entire software自动增量更新的防病毒签名，引擎和整个软件
• Permanent virus protection, with Virus Guard real time monitoring常驻病毒防护，病毒卫队实时监测
• Install and configuration in just a couple of steps, setup to protect your PC in minutes安装和配置在短短的几个步骤，设置保护您的PC在数分钟内
• Virus protection against known and unknown threats, using an advanced heuristic system病毒防范已知和未知的威胁，采用先进的启发式系统
• Scheduler where you can set the scanner to make automatic virus scans or updates on your system调度那里你可以设置扫描仪自动病毒扫描或更新您的系统
• Forum and phone support, Knowledge Base with virus descriptions available on web site论坛和电话支持，知识库病毒描述可在网站上

Drawback : 缺点 ：

You might find the configuration settings a little complex, in that case use the defaults.您可能会发现设定有点复杂，在这种情况下，使用默认值。

Download下载 Avira AntiVir查杀AntiVir

ThreatFire

ThreatFire ( formerly known as Cyberhawk) is a powerful, full-featured antivirus, which saves your system from malicious programs. ThreatFire （以前称为Cyberhawk ）是一个功能强大，全功能的防毒软件，从而节省您的系统免受恶意程序。

It works on a different mechanism, doesn’t just react on the basis of predefined signatures which protects you with the highest level of out-of-the-box accuracy.它适用于不同的机制，并不仅仅反应的基础上，预先签署了保护您最高水平的乱盒的准确性。 It keeps you safe between antivirus updates so you are always protected, no matter how new the threat.它使你的防病毒安全更新，使你总是保护，无论多么新的威胁。

Features特征

• Immediately Effective with No Complicated Set Up立即有效，没有复杂的设置
• Proactive Defense against Both Known and Unknown Threats-it uses intelligent behavioral analysis to proactively hunt down and paralyze any activity or behavior that might compromise the security of a PC.主动防御已知和未知的威胁，它使用的智能行为分析，积极主动地追捕和瘫痪任何活动或行为，可能会损害安全的个人电脑。
• Rootkit Scanner Seeks Out Deeply Hidden Files, Objects and Registry Keys rootkit的扫描仪寻找深深隐藏的文件，物品和注册表项
• Complementary to Your Existing Antivirus Software- no need to uninstall your pre existing antivirus.补充到您现有的防病毒软件，无需预先卸载您现有的杀毒软件。
• Advanced Custom Configuration Options and Rules Settings高级定制的配置选项和规则设置
• Virtually No Impact on System Performance几乎没有任何影响的系统性能
• Built-in Web Search Provides Additional Threat Details内置的网络搜索引擎提供了额外的威胁细节
• Continuously Improving Protection Technology with Technical Support不断提高保护技术提供技术支持

Drawback:缺点：

As it keeps training itself with programs behavior it might slow the system a little but its on lower side.因为它可以训练自己的程序的行为可能减慢系统有点问题，但其较低的一方。

Download下载 ThreatFire

Special Thanks to Nirmal whose post on特别感谢Nirmal的职位 7 Free Anti-virus Software for Windows 7日免费的反病毒软件的Windows , was a good resource ，是一个很好的资源

A Quick Comparison一种快速比较

Name名字	Updates更新	Launch Time发射时间	Effect on Resources and System Speed对资源和系统的速度	Real Time Scanning实时扫描	Protection Against Zero Day Threat保护防止零天威胁
	Auto and Offline汽车和离线	2二	Doesn’t require much resources, hence doesn’t hamper your system’s performance并不需要多大的资源，因此不妨碍您的系统的性能	Available可用的	No否
	Auto汽车	3三	Takes much resources as compared to AVG需要很多的资源相比，平均	Available可用的	No否
	Auto汽车	1	Almost no impact on System Performance几乎没有任何影响的系统性能	Not Available不符合	No否
	Auto汽车	3三	Slightly heavy on resources as compared to AVG稍重的资源相比，平均	Available可用的	No否
	Auto汽车	1	Quite lightweight.相当轻巧。	Available可用的	Yes是

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