在安装Windows^(Windows)之后安装防病毒或安全软件是必须的。这有助于保护我们的Windows计算机免受病毒和其他安全威胁。让您的安全软件始终保持最新也很重要！虽然Windows 11^{(Windows 11)}和Windows 10中的内置Windows Defender做得很好，但你们中的一些人可能想要选择第三方免费的防病毒软件。Windows 11/10的非常好的免费防病毒软件，您可能想查看一下。

Windows 11/10的免费杀毒^(AntiVirus)软件

我只包括了那些提供全面实时保护的防病毒程序，而不仅仅是独立的扫描程序：

1. Windows Defender的
2. 卡巴斯基免费杀毒软件
3. Avira AntiVir 个人版
4. Avast 杀毒软件免费
5. Comodo 杀毒软件免费
6. Bitdefender 免费杀毒版
7. ZoneAlarm 免费杀毒软件 + 防火墙
8. 熊猫免费杀毒软件
9. AVG 杀毒软件
10. Sophos 家庭免费杀毒软件。

1. Windows 后卫

Windows Defender是Microsoft为正版^(Microsoft)Windows 11/10/8/7用户提供的免费防病毒产品。它专为个人消费者 PC 使用而设计，使用尽可能小的资源占用来提供完整的反恶意软件保护，并将包括一种新的保护技术，作为Microsoft反恶意软件引擎的一部分，称为动态签名服务^{(Dynamic Signature Service)}( DSS )。

2.卡巴斯基免费杀毒软件

Kaspersky Free Antivirus为^{(Kaspersky Free Antivirus)}Windows用户提供强大的反恶意软件保护，如文件、电子邮件和 Web 防病毒、自动更新、自我防御、隔离等；并且不包括高级安全功能。它包括一个实时防护罩^(Shield)。

3. Avira AntiVir 个人版

Avira AntiVir Personal为您提供基本保护并保护您的计算机免受危险病毒、蠕虫、木马^(Trojans)和昂贵的拨号程序的侵害。

4. Avast 杀毒软件

阿瓦斯特！免费杀毒软件非常适合发送电子邮件和浏览热门网站的人。其防病毒^(Antivirus)和反间谍软件引擎提供可靠的保护，防止病毒、间谍软件、rootkit、木马和其他形式的恶意软件。

5. Comodo Antivirus Free

Comodo Antivirus Free提供防病毒^(Antivirus)扫描程序、隔离区、沙盒^(Sandbox)操作环境和任务管理器^{(Task Manager)}。其基于云的快速扫描可为您实时提供受感染文件的列表。

6. Bitdefender 免费杀毒版^{(Bitdefender Free Antivirus Edition)}

Bitdefender 免费防病毒版^{(Bitdefender Free Antivirus Edition)}使用世界上最有效的防病毒引擎之一，ICSA Labs认证的扫描引擎可在其他BitDefender产品中免费找到。从而让您免费享受基本的病毒防护。它包括一个实时防护罩^(Shield)。更新^(UPDATE)：Bitdefender Antivirus 免费版即将停用。

其他免费杀毒软件：

• ZoneAlarm 免费杀毒软件 + 防火墙
• 熊猫免费杀毒软件^{(Panda Free Antivirus)}
• AVG 杀毒软件^{(AVG Anti-Virus)}
• Sophos 家庭免费杀毒软件。^{(Sophos Home Free Antivirus.)}

如果您想获得第二意见，您可以使用这些免费的独立按需防病毒扫描程序中的任何一个。^{(Standalone On-demand Antivirus Scanners.)}

这些免费的基于云的防病毒软件^{(Free Cloud-based Antivirus)} 也可能会让您感兴趣。

除了这些免费软件，如果您想推荐更多免费的防病毒软件，请在下面分享。^{(Apart from these freeware if you’d like to suggest any more freeware antivirus software, do share below.)}

如果您正在为您的 Windows 11/10/8/7 计算机寻找 免费的 Internet 安全套件^{(free Internet Security Suites)} 或免费的防火墙软件，请访问此处。^{(free firewall software )}

Best Free AntiVirus software for Windows 11/10

Installing an anti-virus or ѕecurity software, aftеr installing Windows is a must.  This helps protect our Windows computer from viruses and other secυrity threats. It is also important to keep your sеcurity software up to date at all times! While the built-in Windows Dеfеnder in Windowѕ 11 and Windows 10 does a great job, some of you maу want to opt for a third-party free antivirus software instead. Here are some very nice bеѕt free аntivirus software available for Windows 11/10 you might want to check out.

Free AntiVirus software for Windows 11/10

I have included only those antivirus programs which offer full real-time protection, and are not just stand-alone scanners:

1. Windows Defender
2. Kaspersky Free Antivirus
3. Avira AntiVir Personal
4. Avast Antivirus Free
5. Comodo Antivirus Free
6. Bitdefender Free Antivirus Edition
7. ZoneAlarm Free Antivirus + Firewall
8. Panda Free Antivirus
9. AVG Anti-Virus
10. Sophos Home Free Antivirus.

1. Windows Defender

Windows Defender is Microsoft’s free antivirus offering to users of genuine Windows 11/10/8/7. It is specifically designed for individual consumer PC use using the smallest resource footprint possible to provide complete anti-malware protection and will include a new protection technology, as part of the Microsoft anti-malware engine, called Dynamic Signature Service (DSS).

2. Kaspersky Free Antivirus

Kaspersky Free Antivirus offers powerful anti-malware protection for Windows users like file, email and web antivirus, automatic updates, self-defense, quarantine, etc.; and will not include advanced security features. It includes a Real-time Shield.

3. Avira AntiVir Personal

Avira AntiVir Personal offers you basic protection & protects your computer against dangerous viruses, worms, Trojans, and costly dialers.

4. Avast AntiVirus

Avast! Free Antivirus is perfect for people who send e-mails and surf popular websites. Its Antivirus and anti-spyware engine provides reliable protection against viruses, spyware, rootkits, trojans, and other forms of malicious software.

5. Comodo Antivirus Free

Comodo Antivirus Free offers an Antivirus scanner, a quarantine, Sandbox operating environment and a Task Manager. Its fast cloud-based scanning gives you a list of infected files in real-time.

6. Bitdefender Free Antivirus Edition

Bitdefender Free Antivirus Edition uses one of the world’s most effective antivirus engines, ICSA Labs certified scanning engines found in other BitDefender products for free. Thereby allowing you to enjoy basic virus protection for no cost at all. It includes a Real-time Shield. UPDATE: Bitdefender Antivirus Free Edition is to be retired soon.

Other free antivirus software:

• ZoneAlarm Free Antivirus + Firewall
• Panda Free Antivirus
• AVG Anti-Virus
• Sophos Home Free Antivirus.

If you want to take a second opinion, you can use any one of these free Standalone On-demand Antivirus Scanners.

These Free Cloud-based Antivirus may also interest you.

Apart from these freeware if you’d like to suggest any more freeware antivirus software, do share below.

Go here if you are looking for free Internet Security Suites or free firewall software for your Windows 11/10/8/7 computer.

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