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電腦中毒才想裝防毒?Bitdefender Internet Security 能擋什麼
電腦用著用著突然變慢、跳出奇怪的廣告視窗、瀏覽器首頁被改掉,甚至檔案被加密打不開——這些狀況發生的當下,你只想找一套能擋住這些事的軟體,把電腦救回來。但市面上的防毒軟體那麼多,介面全是英文、功能列表落落長,不確定裝了會不會更拖慢電腦,也不知道到底有沒有用。
一般人習慣的做法是裝免費防毒加減用,或靠 Windows 內建的防護撐著。但免費版通常只給基本掃描,進階的防火牆、勒索軟體防護、網路攻擊攔截都要付費才有;內建防護雖然不用錢,遇到惡意網站或釣魚郵件時反應常常慢半拍。這類工具的切入點,是同時顧好「擋下威脅」和「保護隱私」兩件事——不只要防病毒,還要攔截可疑的網路連線、防止攝影機被偷開、過濾詐騙網站,讓你在上網過程中少踩幾個坑。
01Bitdefender Internet Security 跟一般免費防毒差在哪?
它除了即時掃描病毒,還包含雙向防火牆、勒索軟體防護、網路攻擊攔截、釣魚網站過濾、垃圾郵件過濾、網路攝影機與麥克風保護、家長監控、檔案粉碎機和密碼管理員。免費防毒通常只做掃描和基本即時防護,防火牆、VPN、家長控制這些功能一般不會給,所以差別在於防護範圍的完整度。
02這套軟體會不會很吃資源、讓電腦變慢?
官方說法是經過最佳化,掃描時對系統效能的影響有控制,也有遊戲、電影、工作模式可以切換,避免背景掃描干擾你正在做的事。不過實際跑起來順不順,還是要看電腦硬體等級——官方要求至少 2GB RAM 和 2.5GB 磁碟空間,處理器要 Intel Core 2 Duo 以上,低於這個規格的舊電腦裝了可能還是會感到延遲。
03它的防火牆是做什麼用的,跟 Windows 內建的有什麼不同?
它是雙向防火牆,除了擋外部入侵,也會監控電腦裡哪些程式試圖連上網路,你可以手動設定允許或封鎖特定應用程式。Windows 內建防火牆主要擋外部連線,對「哪個軟體在偷偷上傳資料」這類內部往外連的控管比較粗,這套的控管粒度更細,適合想掌握自己電腦網路行為的人。
04內建的 VPN 是怎麼運作的,流量夠用嗎?
它附的是基本 VPN,每天每台裝置有 200MB 的流量額度,用來加密瀏覽器連線、在公共 Wi-Fi 上保護資料傳輸還行,但要看影片或大量下載檔案很快就會用完。要無限流量得另外付費訂閱,這點在購買前要先想清楚,如果 VPN 是你主要需求,這套的免費額度可能不夠。
05家長控制功能可以做到什麼程度?
可以建立小孩的個人檔案,設定上網時間限制、封鎖特定類別的網站、管理應用程式使用權限,也能監看線上活動紀錄。它需要你手動為每個孩子建立設定檔並調整規則,不是裝了就會自動過濾所有內容,設定上需要花一點時間,但對想管小孩上網內容的家長來說是實用的工具。
06這套軟體適合什麼樣的人用?
適合想要一套涵蓋防毒、防火牆、隱私保護、家長控制的使用者,不想裝好幾套軟體分別處理不同問題。介面是英文,但操作邏輯直觀,有引導式設定流程,對願意花時間摸索的人來說門檻不高。小家庭或個人工作室如果只有 Windows 電腦、需要基本防護和網路隱私,這套的功能範圍算對得上。
07不太懂電腦的人用這套會遇到困難嗎?
它的介面是英文,對不熟悉英文的人來說,設定防火牆規則、調整家長控制、看懂威脅通知都會有障礙。官方有提供引導式安裝和 Autopilot 自動模式,會根據系統狀況自動調整防護設定,減少手動操作,但遇到需要判斷的彈出視窗時,不懂英文還是會卡住。如果英文閱讀有困難,可能要考慮有中文介面的其他防毒軟體。
08我已經有裝別的防毒軟體,需要換成這套嗎?
如果現有的防毒軟體用起來沒出過什麼問題,不一定要換。這套的優勢是功能整合度高,防火牆、VPN、家長控制都包在一起,但如果你原本的防毒加免費防火牆就夠用,換過來不一定有感。另外要注意,同時裝兩套防毒軟體會互相衝突、拖慢系統,要換的話記得先完整移除舊的再裝。
09這套軟體有試用版嗎?試用期過了會怎樣?
它的授權型式是 Trial,也就是試用版,官方網站下載安裝後可以啟動試用。試用期結束後,進階功能會鎖住,但確切鎖住哪些功能、試用天數多久,官方資料沒有寫明,需要自己安裝後確認。如果只是想要基本掃描功能,試用期過後可能連即時防護都會停用,這點要留意。
10這套軟體適合用在舊電腦上嗎?
官方系統需求是 Windows 7 SP1 以上、2GB RAM、2.5GB 磁碟空間,看起來門檻不高,但舊電腦如果本來就跑得喘,裝了防毒軟體後開機和掃描還是會感受到負擔。它有遊戲模式和電池模式可以降低背景活動,但本質上防毒軟體就是常駐程式,會持續佔用資源。如果你的電腦是十年以上的老機器,可能要考慮更輕量的防毒方案。
11這套軟體跟 Bitdefender 其他版本比起來,差在哪?
官方資料提到有 Bitdefender Antivirus Plus、Total Security 和 Anti-Ransomware 等版本。Antivirus Plus 是基本防毒,Total Security 功能更完整,Anti-Ransomware 專門針對勒索軟體。Internet Security 介於中間,比 Antivirus Plus 多了防火牆、VPN、家長控制,但比 Total Security 少了哪些功能官方資料沒寫清楚,選購前要上官網比較各版本的功能表。
12這套軟體的評價如何,值得裝嗎?
目前有 86 人評分,平均 6.48/10,分數不算高,但評分人數不多,參考價值有限。官方強調高偵測率和即時防護,也提到介面好用、功能完整,但缺點是進階功能可能讓新手覺得複雜。建議先裝試用版實際跑一週,看看會不會拖慢電腦、介面能不能接受,再決定要不要付費。
下載與官方連結
前往官方網站 下載 Bitdefender Internet Security (32-bit)
bitdefender_isecurity.exe · 連結指向軟體原廠
版本紀錄
- 2026-10-22 Bitdefender Internet Security 27.0.64.366 20.5 MB
- 2026-10-07 Bitdefender Internet Security 27.0.63.360 20.5 MB
- 2026-09-10 Bitdefender Internet Security 27.0.62.355 20.5 MB
再看 5 筆
- 2026-08-23 Bitdefender Internet Security 27.0.62.352 20.5 MB
- 2026-07-25 Bitdefender Internet Security 27.0.61.344 20.5 MB
- 2019-10-17 Bitdefender Internet Security 2020 Build 24.0.9.52 (32-bit) 11.2 MB
- 2019-07-31 Bitdefender Internet Security 2020 Build 24.0.3.15 (32-bit) 11.2 MB
- 2019-06-26 Bitdefender Internet Security 2019 Build 23.0.24.120 (32-bit) 10.8 MB
這一版改了什麼
What's new in this version:
Bitdefender Internet Security 2018 Build 22.0.15.189 (32-bit)
- Change log not available for this version
Bitdefender Internet Security 2018 Build 22.0.12.161 (32-bit)
This version fixes the following issues:
- Fixed an issue with Active Threat Defense not activating
- Fixed an issue where the product would show "Last Update Never"
- Fixed an issue where the offline weekly updates would not detect Bitdefender 2018
- Fixed an issue where Google would report SafePay is an outdated browser
- Fixed an issue where Custom Scans would not be saved after switching to Aggressive
- Fixed an issue where SafePay couldn't save bank statements(PDF) on hsbc.co.uk
The following improvements were included:
- Wallet's compatibility with several websites
- Several Improvements to the in-product Support Tool
- Several interface improvements
- Various Install Engine optimizations
- Various SafePay optimizations and security improvements
- Several Firewall improvements
- Several Advanced Threat Defense improvements
- Improved compatibility with upcoming Windows release
- Several OneClick Optimizer improvements
Bitdefender Internet Security 2018 Build 22.0.10.141 (32-bit)
This version fixes the following issues:
- Fixed an issue where the Ransomware Protection(Safe Files) causes the TaskBar icons to hide
- Fixed an issue causing the Agent to initialize improperly causing the product to stay into a inactive state
- Fixed an issue causing the product to block internet access after a period of time
- Fixed an issue where the SafePay notification would appear several times for some banks
- Fixed an issue where the Vulnerability Scan would show a blank window for Critical Windows Updates.
- Fixed an issue where the Reset Settings for Bitdefender Shield would not prompt for confirmation
- Fixed an issue where as the Security Report would display extra days in a month
- Fixed an issue where as the text in the GUI would be displayed with a slight delay
- Fixed an issue where the SafePay Virtual Keyboard would enter the text into the address bar by default
- Fixed an issue where the Open With contextual menu would be disabled once the subscription expires
- Fixed an issue where the Widget would reset its position after a reboot
- Fixed a rare issue where the Name/eMail/Device would not be displayed in the Account Info page
- Fixed a rare issue where as SafePay could not perform a login into certain banking websites
- This version fixes the vulnerability FG-VD-17-019 reported by Fortinet’s FortiGuard Labs through responsible disclosure
The following improvements were included:
- Several interface improvements
- USB Immunizer functionality was augmented
- Improved the security of the Install Engine
- Various optimizations to the Install Engine
- Added link to the Bitdefender Uninstall Tool should the Install Engine fail to deploy drivers
- Various optimizations to the Scan Engine
- Various optimizations to the Update Engine
- Various optimizations to the SafePay browser
- Various optimizations to the Firewall - Adapter Engine
- Various optimizations to the Webcam Protection module
- Added Dynamic Adapter type (It will setup itself depending on your Windows Adapter setting : Home/Office type settings for the Private Network and Public for the Public Network)
- Added the ability to copy/paste information from Notifications
- Improvements leading to better compatibility with the next Windows Security Center update
Bitdefender Internet Security 2018 Build 22.0.8.114 (32-bit)
- The new generation of the award-winning line introduces a multi-layer defense against ransomware, the malware outbreak that’s evading many detection filters and encrypting users' documents then demanding ransom to decrypt them. Advanced Threat Defense finds patterns of behavior to detect and block even the newest threats while Real Time Protection instantly stops all known threats. As an additional protection, the new Safe Files feature prevents unauthorized alterations to sensitive files.
- User privacy, a growing concern among users in an era of state-sponsored espionage, mass data theft and the proliferation of hackers, is enhanced in the latest Bitdefender product line, with innovations such as Webcam Protection that prevents webcam spying, fending off snoops, blackmailers and others.
- The new Firewall makes it easy for non tech savvy users to take full advantage of this essential safety feature. Account Privacy for iOS and Android checks if any of your e-mails have been leaked, and may be used in subsequent targeted attacks or for extortion.
Bitdefender Internet Security 2017 Build 21.0.25.92 (32-bit)
- Change log not available for this version
Bitdefender Internet Security 2017 Build 21.0.23.1101 (32-bit)
This version fixes the following issues:
- Fixed a crash caused by the Update module
- Fixed a rare crash caused by SafePay
- Fixed a issue with the Firefox extension signatures
- Fixed a issue causing the Bitdefender window to shift to the right
- Fixed a issue causing the Wallet to prompt for the account on the same browser session
- Fixed a issue where the Agent failed to stop
- Fixed a issue where the Wallet would display empty lists when scrolling down the menu
- Fixed a rare crash causing vsserv to crash
- Fixed a crash caused by SafePay
- Fixed a crash caused by the Agent
- Fixed a issue causing the Agent not to deploy properly
- Fixed a issue where the Custom Scan would not start at the proper time
- Fixed a issue where the email archives would be purged from the Quarantine
- Fixed a rare issue causing the Uninstaller to crash
- Fixed a issue where the Security Report would show the improper period
- Fixed a issue where the product would revert the default language to English after a repair
- Fixed a issue where SafePay would not keep the zoom settings from the previous session
- Fixed a issue causing SafePay to be unable to open PDF files
The following improvements were included:
- The product now complies with the Microsoft DSA requirements
- Several improvements to the install engine
- Improved repair process
- Several improvements to the On-Access engine
- Product interface fixes and improvements
- Improved SafePay's functionality
- Several improvements to the product's self-defense mechanism
- Improved the way the Support Tool gathers Bitdefender related information
- Improvements to the Firewall engine
- Improved Wallet's compatibility with several websites
- Added support for the polish language
- Some improvements to the event engine
- Improved the way the product handles remote tasks (example : system scan from Central)
- Improved the way the product integrates with the Windows start-up process
- Some improvements to the Update engine
Bitdefender Internet Security 2017 Build 21.0.22.1050 (32-bit)
This version fixes the following issues:
- Fixed a issue where the setup window would not show-up properly on high DPI machines
- Fixed a issue where the Trial would not start on a new account
- Fixed a issue where two Uninstall Surveys would open upon removing the product
- Fixed a rare issue where the Switch Account button would not activate on a expired account
- Fixed a rare crash caused by the Widget
- Fixed a rare crash caused by the Agent
- Fixed a issue where Wallet would not function under SafePay
- Fixed a issue where Paranoid Mode would block a connection without notification
- Fixed a issue where events would not be generated under Home/Office
- Fixed a issue where Aero was causing buttons to disappear from the UI
- Fixed a crash caused by the Subscription engine
- Fixed a issue where the OneClick Optimizer would places.sqlite in Firefox
- Fixed a rare issue where the Setup window would relocate randomly
- Fixed a issue where kabelmail.de users would not receive emails with the Anti-Spam enabled
- Fixed a issue where the Paranoid option would be available after disabling AVC
- Fixed a issue where the Setup engine could not create install folders
- Fixed a rare crash caused by the Notification Engine
- Fixed a issue where the Update frequency slider would revert to the default setting
- Fixed a rare crash caused by the Proxy handler
- Fixed a rare issue where the task for the Agent couldn't be created
- Fixed a issue where Wallet wouldn't autofill on Amazon and eBay
- Fixed a rare crash caused by the Settings handler
- Fixed a issue where the Security Report would show 0 files in the Vault
- Fixed a issue where the Vulnerability Scan would show the incorrect size of Windows Updates
- Fixed a rare crash caused by Bitdefender's Photon
- Fixed a issue where SafePay would randomly freeze on Surface Pro 3 devices
- Fixed a rare issue where the Widget would still show the animation for the Vulnerability Scan even after it has been completed
- Fixed a issue where the main interface would open after a delay when accessed from the system tray icon
- Fixed a issue where you the option to shutdown the machine after the scan would not be available
The following improvements were included:
- Product interface fixes and improvements
- Several improvements to the Install Engine
- Various improvements to the registration logic
- Various improvements to the way the product reports errors
- Various improvements to the Firewall Module
- SafePay performance improvements
- Enhanced the way the product uninstalls itself from the system
- Improvements to the product's self-protect function
- Moved the Delete button from Wallet edit mode in view mode
- Wallet now displays the name of the wallet when asking for the password
- Improved Wallet's compatibility with several websites
- Added the option to enable Domain discovery (printer and shares) when the Adapter is set as Home/Office
- Improved the way Bitdefender scans emails through SSL/TLS/STARTTLS
Bitdefender Internet Security 2017 Build 21.0.22.1011 (32-bit)
This version fixes the following issues:
- Fixed a issue where the "Prompt before download" window would not show
- Fixed a crash caused by Traffic Light
- Fixed a crash caused by the On-Access engine
- Fixed a error where Disk Cleanup would just stop
- Fixed a issue where the Optimizer would not start
- Fixed a rare crash caused by the Wallet
- Fixed a rare crash caused by some wireless adapters
- Fixed a rare crash caused by some Nvidia drivers
- Fixed a rare crash caused by Windows Crypto API
- Fixed a crash caused by Wi-Fi advisor when system locale is set to any Asian language
- Fixed a issue where the Home Wi-Fi would show as untrusted
- Fixed a display issue where the pie chart for the Startup Optimizer would be completely grey
- Fixed a issue where all blocked applications would gain internet access after a Agent crash
- Fixed a memory leak in Snap Photo
- Fixed a issue where a scheduled scan would not run at the proper time
- Fixed a issue where the Events(Notifications) would not ask for the Settings password and allow access
- Fixed a issue where the number of days to delete content in the Quarantine woudl revert to the default number
- Fixed a issue where the Eicar test files were not counted in the Live Stats
- Fixed a issue where the title of the product is Total Security instead of the current installed product (AntiVirus / Internet Security)
- Fixed a issue where the Ransomware Protection Event is deleted under certain situations
- Fixed a issue where the "Remind me later" notification would pop-up continuously
The following improvements were included:
- Product interface fixes and improvements
- Various improvements for the install engine
- Improved the way competitive products are being removed
- Various security and functionality improvements for SafePay
- Various improvements and compatibility fixes for the Wallet
- Desktop/Music/Videos are now added as default protected zones under the Ransomware Protection
- Improved the way notifications are handled
- Improved the way trial subscriptions are being handled
- Added the possibility to remove Wi-Fi profiles
- Improved the functionality of the Wi-fi Advisor
Bitdefender Internet Security 2017 Build 21.0.21.967 (32-bit)
- Change log not available for this version