| Avast Free Antivirus | Avira AntiVir Personal - Free Antivirus | ZoneAlarm Free Antivirus + Firewall 2015 | ZoneAlarm Free Antivirus + Firewall | |
| 17.9.2322 | 1.0.48.719 | 15.0.159.17147 | 15.8.211.19229 | |
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| Freeware | Freeware | Trialware | Freeware | Licence |
| FREE | FREE | $39.95 | FREE | Price |
| 6.84 MB | 5.50 MB | 4.80 MB | 5.50 MB | File size |
| Oct 4, 2017 | Mar 8, 2024 | Jan 24, 2017 | Aug 31, 2022 | Update |
| 30 | 29 | 30 | 28 | Downloads |
| Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Windows 11 | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64 | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Windows 11 | OS |
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