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Smadav 2021 Rev. 14.6 :
+ New theme for Smadav 2021,
+ New detection database of 7051 new viruses,
+ Smadav-AI update (Artificial Intelligence, version 9.82M) to detect many new viruses and reduce false/incorrect detection,
+ Smadav-AI is more active in detecting suspicious programs,
+ New feature to select AI detection level when scanning,
+ Changes to name of virus detected by AI,
+ Changes to some of the settings.

Smadav 2020 Rev. 14.5 :
+ New detection database of 11570 new viruses,
+ New AI (Artificial Intelligence, version-9.38M) technology update to detect many new viruses and reduce false/incorrect detection.

Smadav 2020 Rev. 14.4 :
+ New detection database of 38400 new viruses,
+ New AI (Artificial Intelligence, version-8) technology update to detect many new viruses and reduce false/incorrect detection,
+ Change to the agreements that Smadav Free may not be used for any company/office/organization, both non-profit and commercial
+ Fixing methods for sending statistics or auto-uploading PC app samples.
+ Fixing the 60-second time limit on the Startup notification of Smadav Free.

Smadav 2020 Rev. 14.3 :
+ Efficiency (reduction and addition) of the virus database to a total of 260,000 viruses to reduce installation size,
+ Smadav installation size reduced from 18 MB to under 6 MB,
+ New AI (Artificial Intelligence) technology update to detect many new viruses and reduce false/incorrect detection,
+ Fixed not-responding/slow on Smadav Free Startup.

Smadav 2020 Rev. 14.2 (released only for the Pro version) :
+ Efficiency (reduction and addition) of the virus database to a total of 228000 viruses to reduce installation size,
+ Fixed errors/bugs in the auto-update and protection feature.

Smadav 2020 Rev. 14.1 :
+ New detection database of 70000 new viruses,
+ New Smadav AI update to reduce false detection
+ Improvements to the auto-update feature,
+ Reduction of virus databases for efficiency.

Almost all other antivirus cannot be installed with another antivirus, it's because the antivirus designed for main protection in your PC. It's not the case for Smadav, Smadav is an antivirus that is designed as additional (second layer) protection, so it's mostly compatible and could be installed and run together with another antivirus in your PC. Smadav using their own technique (behavior, heuristic, and whitelisting) to detect and clean virus that improves security in your PC.

USB Flashdisk is one of the most used media for virus spread. Smadav use its own technology to avoid virus spread and infection from USB Flashdisk. Smadav can detect many new unknown virus in USB even if the virus is not in the database. Not only for protection, Smadav can also help you to clean USB Flashdisk from virus and restore hidden/infected file in the USB Flashdisk.

Smadav has advantage with its very small installer size (under 10 MB) and low usage of internet while active in your PC. And also smadav only using small fraction of your PC resources. Smadav most of the time only use small memory and small CPU usage. With this small resource usage, Smadav will not heavily slow your computer. And you can still install another antivirus that will together work with Smadav to protect your PC.

Smadav can clean some virus that already infected your PC and also fix the registry change made by the virus. Many tools included in Smadav Pro to fight for virus cleaning. The tools are :

• One-Virus By-User, to manually add your suspect file for virus cleaning in the PC.
• Process Manager, to manage processes and programs run in your PC.
• System editor, to change some system options that usually changed by virus.
• Win-Force, to force open some system management programs in Windows.
• Smad-Lock, to immunize your drive from some virus infection.

Smadav Pro will not show offer to upgrade to pro version on every startup. All difference between Smadav Free and Pro Features : Hide offer message on startup, Tools Section in App, Additional (RTP) Settings in App, Exception List, Changing theme colors, Admin Password, and license to use in business/organization/company.
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Smadav 2020 Rev. 14.0 :
+ New detection database of 350000 (350K) new viruses,
+ New Smadav AI update to increase detection of unknown suspicious programs
+ Auto-sample submission feature when protection is active to improve Smadav-AI in the future versions,
+ Fixing false detection and program bugs.

Smadav 2020 Rev. 13.9 :
+ New detection database of 270300 new viruses,
+ Smadav AI (Machine Learning) is updated and can be used to detect viruses in USB Flash drive
+ Improvements to the auto-update feature,
+ Improvements to the main application, launch faster when opened.

Smadav 2020 Rev. 13.8 :
+ New detection database of 707053 new viruses,
+ Smadav AI (Machine Learning) is updated and can be used as scanner in expert mode
+ New auto-update method to reduce incompatibility with another Antivirus,
+ Fixing false detection and program bugs.

Smadav 2020 Rev. 13.7 :
+ New detection database of 12800 new viruses,
+ Change in terms and agreements for purchasing Smadav Pro,
+ Fixing false detection and Fixing app form.

Smadav 2020 Rev. 13.6 :
+ New detection database of 196000 new viruses,
+ Improvement in blacklisting non-original Smadav Pro,
+ Change in Smadav Pro USD pricing from 4 USD/PC to 2.4 USD/PC for 1-year.

Smadav 2020 Rev. 13.5 :
+ New detection database of 146000 new viruses,
+ Improvement in whitelist of clean programs/apps,
+ Update for the new detection method (Machine Learning) to detect most of new unknown viruses,
+ Change in Splash-Screen method and Smadav-Form at PC Startup,
+ Fixing bug/error in app.

Smadav 2020 Rev. 13.4 :
+ New detection database of 98500 new viruses,
+ New detection method (Machine Learning) to detect many new unknown viruses,
+ New theme for Smadav 2020,
+ Smadav Splash-Screen in startup is faster,
+ Fixing false detection and bug/error in app.

Smadav 2019 Rev. 12.9 - 13.3 :
+ New detection database of 125,000 (125K) new viruses,
+ Improvement in whitelisting feature with new database of 215,000 (215K) clean programs/apps,
+ New methods to automatically upload some executable of programs to help Smadav Development,
+ Fixing methods for collecting PC program statistics to help Smadav Development,
+ New Smadav Free message interface in every startup,
+ Improvement of method to detect virus that infect system or USB Flash drive,
+ Fixing false detection and bug/error in app.

Smadav 2019 Rev. 12.5 - 12.8 :
+ New detection database of 524 new viruses and removal of 330 virus-DB,
+ Improvement in detection and cleaning of USB virus and adware,
+ New detection/restriction method to protect from unknown program,
+ New detection method to protect from Ransomware: Rumba/STOP/DJVU/TFUDET,
+ Improved method to restore hidden files in USB Flash drive,
+ Fixing false detection and bug/error in app,
+ CPU usage is smaller than previous versions,
+ Enhancement of terms and agreements for purchasing Smadav Pro,
+ New theme for Smadav 2019.

Smadav 2018 Rev. 11.8 - 12.4 :
+ Improvement in whitelisting feature with new 98051 clean apps database,
+ New theme for Smadav 2018,
+ Changes in terms of purchasing new Smadav Pro license from lifetime to 1-year,
+ Improvement in detection and cleaning of popular virus,
+ New methods for collecting PC program statistics to improve reputation/whitelist features,
+ Automatic virus upload feature and automatic virus cleaning in USB Flashdisk,
+ Bug fix and improvement of auto-update feature,
+ New Feature : Restart PC for better virus cleaning,
+ New interface : Smadav Free will show messages in every startup.

Smadav 2017 Rev. 11.1 - 11.7 :
+ Main detection technology now using heuristic & whitelisting (file reputation),
+ Sending usage of statistics to help improvement of Smadav,
+ Improvement in detection and cleaning virus that spread via USB Flashdisk,
+ Adding new Anti-Ransomware settings to protect PC from Ransomware (malware that holds your PC hostage),
+ Adding new feature (USB Anti-Exe) to block unknown programs in USB Flashdisk,
+ Faster Scanning and Lower CPU resource usage,
+ Fixing program bugs and false detection,
+ Changes in feature differences between Free and Pro version.

Smadav 2016 Rev. 10 :
+Improvement in protection from Ransomware that encrypt files (Cerber, Locky, Teslacrypt, etc.),
+Adding new Scan feature to clean unknown virus,
+Adding new feature to automatically unhide files in USB Flashdisk,
+Improvement for USB and Web Protection,
+Support for Windows 10 (Smadav can be used in Windows XP/Vista/7/8/10),
+and many other enhancements.

How Does Antivirus Software Work?

Any time you open or download a new file, an antivirus program will scan the files for viruses and other harmful executables. Almost every free anti virus software today features multiple scanning detection processes. The most basic detection process is called “specific detection.” It works by scanning a file for various sets of characteristics and checking these characteristics against a list of already known malware. This process is an essential component of an antivirus software, and essential for every free PC antivirus, but it is also easy for cybercriminals to evade. All a cybercriminal must do is modify the malware code slightly to render it undetectable.

The top free antivirus, Comodo Antivirus, does not rely only on specific detection. Comodo also uses heuristic detection and containment to ensure that even unknown malware cannot compromise our users’ computers. Heuristic detection is a method of analyzing a file to determine if it contains suspicious code. If suspicious code is detected then the antivirus deletes the file or recommends it for containment. Files run in Comodo containment are kept in a sandbox environment, separate from your operating system. Heuristics is about detecting virus-like behavior or attributes rather than looking for a precise virus signature that matches a signature on the virus blacklist.

A common misconception that lingers to this day is that free antivirus protection is not adequate to deal with malware threats. Though this pay have been true in the past, today’s best free antivirus software have features that can keep you protected from even the most advanced malware. The best free antivirus on the market today, Comodo Antivirus offers features more advanced than most paid antiviruses. Comodo Antivirus gives users a major advantage over not only an antivirus-free environment, but also the best paid antivirus products on the market.

Best Virus Protection Software from Comodo

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Comodo's virus protection technology has proved its mettle for battling virus threats through tried-and-tested methods. Infection Defense+ barricades the access of any dubious programs at all critical checkpoints, while the Auto-Sandbox Techniques isolates the potentially harmful programs in a restricted environment without letting it affect your workflow.

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Comodo antivirus 2021 also features the Default Deny Protection which, as opposed to other security software, denies access to a program if it's not in Comodo's comprehensive whitelist. The cloud-aware security features are light on the system and provide constant virus scanning and behavior analysis report.