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AVG AntiVirus Free 免費防毒夠用嗎？它能做什麼

AVG AntiVirus Free (64-bit) 軟體圖示 AVG AntiVirus Free (64-bit) 17.9.3040 (64-bit) 資料更新 2017-12-22 閱讀約 7 分鐘

你剛買了一台二手 Windows 電腦，或幫家人重灌了系統，第一個念頭就是「得裝個防毒軟體才安心」。你不想花錢，也聽說 Windows 內建的 Defender 好像夠用，但總覺得再多一層保護比較踏實。你上網搜尋免費防毒，看到 AVG AntiVirus Free 這個名字，下載安裝後卻發現介面全是英文，有些功能看不懂，也不確定它到底擋不擋得住勒索病毒或釣魚網站。

一般人遇到這種狀況，最直接的做法是裝了就不管它，反正有裝有保佑。但免費防毒軟體常常會在背景偷偷掃描、跳出升級付費版的廣告，甚至跟系統內建的 Defender 搶工作，讓電腦變慢。這類工具的切入點其實是「用最低成本換取基本防護」——它該做的是安靜地在背景把關，在你上網、收信、插隨身碟的時候攔截威脅，而不是整天煩你。問題是，它實際做到多少，你得先搞清楚。

01AVG AntiVirus Free 到底能不能擋病毒？

可以。它的核心功能就是偵測並移除病毒、間諜軟體和惡意程式，官方宣稱有六層防護，包含即時掃描、網頁防護和電子郵件防護。安裝後它會在背景持續運作，下載檔案前先檢查，瀏覽網頁時也會阻擋有問題的連結。不過要注意，它只提供基本防護，進階功能如防火牆進階設定、勒索軟體強化防護，官方說明中標明是付費版 AVG Internet Security 或 AVG Ultimate 才有的。

02它會讓電腦變慢嗎？

官方說法是最小化對效能的影響，掃描會在你離開電腦時進行，玩遊戲時也會自動切換成背景運作。但實際感受因人而異，老舊電腦或記憶體不足的機器，安裝任何防毒軟體都可能感受到差異。建議安裝後觀察一兩天，如果覺得卡頓明顯，可以調整掃描排程或考慮移除。資料中沒有具體效能測試數據，這部分需要你自己實測。

03上網亂點連結或收信夾帶檔案，它能擋嗎？

可以擋一部分。它有網頁防護，會封鎖有問題的連結和釣魚網站；Email Shield 則會阻擋危險的郵件附件和釣魚連結。但這不代表你可以放心亂點——它攔截的是已知或可偵測的威脅，新型攻擊或偽裝良好的釣魚信件仍有漏網可能。官方也提到，它會檢查即時通訊軟體傳送的檔案，但這項功能在最新版本中是否仍完整保留，資料沒有明確說明。

04它有防火牆嗎？

官方功能列表中有提到 Firewall 和 Improved Firewall，可以保護家用網路免受入侵。但要注意，免費版與付費版的功能界線在資料中沒有詳細列出，防火牆的完整功能（如自訂規則、進階監控）可能僅限付費版。如果你需要的是嚴謹的防火牆控管，建議先確認免費版實際開放了哪些項目，或考慮其他方案。

05它能防勒索病毒嗎？

官方提到 Enhanced Anti-Ransomware 功能，能對重要檔案提供額外保護，防止被勒索軟體加密。但這項功能在免費版中是否完整開放，資料沒有明確標示。基本防護仍以病毒偵測為主，建議重要檔案還是要另外做備份，不要只依賴防毒軟體。如果這是你最在意的威脅，可能需要確認付費版或改用其他專門的防勒索工具。

06我英文不好，介面只有英文看得懂嗎？

這是個實際問題。這套軟體的介面語系只有 English，沒有中文選項。如果你對電腦操作不熟，或看不懂「Quarantine」「Real-Time Protection」這些字，使用上會比較吃力。安裝、掃描、隔離病毒這些基本操作還算直覺，但進階設定或錯誤訊息就可能需要查字典。英文介面不是不能用，但如果你完全無法閱讀，建議找有中文介面的免費防毒軟體。

07我電腦很舊，Windows 7 還能裝嗎？

可以。它支援 Windows 7 64位元、Windows 8 64位元、Windows 10 64位元和 Windows 11。但要注意，Windows 7 本身已停止支援多年，就算裝了防毒軟體，系統層面的漏洞也無法修補。如果你還在用 Windows 7，防毒軟體只是其中一層保護，更重要的問題是系統已經過舊，建議盡快升級硬體或系統。

08它適合什麼樣的人用？

適合「只要基本防護、不想花錢、能接受英文介面」的人。如果你只是上上網、收收信、不打奇怪網站，免費版提供的即時掃描、網頁防護和郵件防護已經夠用。它也適合喜歡「裝了就不管」的使用者，因為它會自動更新病毒碼，不需要手動操作。但如果你需要中文介面、想要完整防火牆或進階勒索防護，這套軟體就不太適合。

09它跟 Windows 內建的 Defender 比，哪個好？

資料中沒有直接比較，但可以從功能面推測。Defender 是 Windows 內建、免費、有中文介面，且持續更新；AVG 則多了網頁防護、郵件防護和網路攝影機防護等額外功能。如果你已經習慣 Defender 且沒有遇到問題，其實不一定要換。如果你想要多一層防護或對 Defender 沒信心，可以試試 AVG，但記得安裝前先關閉 Defender 的即時防護，避免兩套軟體衝突。

10它會一直跳廣告叫我升級付費版嗎？

免費軟體通常會推銷付費版，這是常見的商業模式。官方說明中明確提到「Basic protection only. Advanced features are available in AVG Internet Security and AVG Ultimate」，安裝或使用過程中可能會看到升級提示。如果你很討厭這類干擾，可以留意安裝時的選項，或考慮其他不會推銷的免費防毒軟體。資料中沒有具體說明廣告頻率，這部分需要實際使用才知道。

11這套軟體更新頻率高嗎？會不會很久沒更新？

從版本紀錄來看，近 12 個月更新 2 次，近 24 個月也是 2 次，代表它大約每半年到一年才更新一次主版本。病毒碼定義檔的更新頻率通常比主程式高，但資料中沒有明確數據。如果你很在意即時防護能力，更新頻率偏低的軟體可能不是最佳選擇。建議安裝後確認自動更新功能有開啟，並定期手動檢查更新。

12我該不該選這套？有沒有更多人用的免費防毒？

這套軟體有 1009 人評分，分數 7.4/10，算是中等偏上。功能相近的 ZoneAlarm Free Antivirus 只有 114 人評分，F-Secure Antivirus 更只有 32 人，代表 AVG 的使用者基數明顯較大。但「多人用」不等於「適合你」。如果你能接受英文介面、只需要基本防護、不想花錢，它可以列入考慮；如果你需要中文介面或更頻繁的更新，建議看看其他選項。最終還是要裝來試用一兩週，看它跟你的電腦相處得如何。

下載與官方連結

前往官方網站 下載 AVG AntiVirus Free (64-bit)

AVG_Antivirus_Free_x64_693.exe · 連結指向軟體原廠

版本紀錄

再看 5 筆

看完整版本清單

這一版改了什麼

What's new in this version:

AVG AntiVirus Free 17.9.3040 (64-bit)
- Now you can send feedback and bug reports from Menu > About
- More detailed status reporting to Windows Security Center in Windows 10 Fall Creators Update
- Nested virtualization support for AMD CPUs
- Better proxy detection by setup and update from Windows settings
- AVG Dashboard has been removed
- Fixed a problem with white UI (you might see more processes AVGUI.exe now, but that's OK)
- Anti-Phishing Protection in Web Protection now works with Windows XP
- Fixed issue where Behavior Shield sometimes cut off a user’s Internet connection
- False positives can now be reported directly from threat detection warnings (File Shield)
- Fixed boot issue on Windows XP when Virtual PC driver is installed
- Fixed BSOD caused by conflict between DELL percsas3 and AVG Self-Protection drivers
- Fixed BSOD caused by avgVmm when running AVG in Vmware Fusion on MAC
- AVG signature added to emails sent by email apps
- License delivery fixes

AVG AntiVirus Free 17.8.3036 (64-bit)
Fixed Bugs:
- Erasing malware detected and removed by Behavioral Shield from the chest when other malware was restored
- Adding custom folder to be protected by the Antiransomware Shield

AVG AntiVirus Free 17.7.3032 (64-bit)
- New Webcam Protection ends webcam spying for good by blocking malware and untrusted apps from hijacking your webcam to spy on you
- Easier settings: Main-screen icons are now clickable
- Improved low level optimizations for AMD Ryzen CPUs for better performance

High-Level Messaging:
- Functional Header - Comprehensive protection for unlimited personal devices
- Emotional Header - Our absolute best protection for all your devices

Three main benefits:
- Maximum protection - Stop malware, block dangerous downloads, avoid fake websites, & secure personal files with advanced ransomware protection
- Maximum privacy - Prevent voyeurs from hijacking your webcam, hide private photos and files from snoops, and securely shred sensitive data
- Unlimited family protection - Protects unlimited family PCs, tablets, & smartphones

Extended benefits:
- Secure your PC - With real-time protection and advanced machine learning, we keep your computer free of viruses, spyware, ransomware, rootkits, Trojans, and other nasty malware. Our Enhanced Firewall also keeps hackers off your PC
- Surf and email faster - We block unsafe links, downloads, spam, and email attachments so you can enjoy your online life without worries. We even help you avoid fake copycat websites so you don’t unintentionally give thieves your passwords, credit card numbers, or other personal info
- Get advanced ransomware protection - Wall off your personal photos, documents, and files from malicious encryption, and have total control over which apps can change or delete your files
- Stop webcam spying - Keep voyeurs out of your home — and children’s bedrooms — by allowing only trusted apps to use your webcam and being warned when anything suspicious tries to access your camera
- Stay up-to-date - Security updates and new features are pushed to you automatically, so you never need to manually update your AVG software to stay protected from the latest threats
- Protect the whole family - Easily protect your whole family, no matter how many devices anyone has or what kind they are. Better still, you can do all this from a single dashboard, from anywhere in the world

AVG AntiVirus Free 17.6.3029 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.5.3022 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.5.3021 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.4.3014 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.3.3443 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.3.3011 (64-bit)
- Hotfixes of a few non-fatal crashes (non-necessary dumps created in the log folder)

AVG AntiVirus Free 17.2.3008 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 17.1.3006 (64-bit)
- New interface makes it easier than ever to monitor all your layers of protection
- “Scan Computer” now quickly scans for malware, unwanted toolbars and browser extensions, and PC performance problems in a single click
- New “Deep Scan” option lets you specifically target hidden threats with a longer, more intensive scan of your entire computer
- Improved identification of never-before-seen threats by sending potential malware to our servers for deeper analysis
- Now blocks unsafe downloads before they reach your PC (previously a paid feature)
- Now security updates are automatically pushed to your PC in real-time (previously a paid feature)

AVG AntiVirus Free 2016 16.131.7924 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.121.7859 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.121.7858 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.111.7797 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.91.7688 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.81.7640 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.71.7598 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.71.7597 (64-bit)
- Change log not available for this version

AVG AntiVirus Free 2016 16.71.7596 (64-bit)
- Change log not available for this version

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