Realtime ProtectionAntivirus:
Best Free Antivirus Software
Avast!
Windows Defender Configure Defender
SecureAPlus
Kaspersky free antivirus
Kaspersky Cloud antivirus
Bitdefender Antivirus Free Edition
AVG
Avira
Panda Cloud
Ahnlab prod[DOT]ahnlab[DOT]com/v3lite/v40/download/V3Lite_Setup.exe
Nano Antivirus
Tencent
Ad-Aware
Comodo
Sophos Home
360 Total Security Essential
Kingsoft Antivirus
Baidu
McAfee Cloud AV
Clam Sentinel (with ClamWin)
BeeDoctor
Twister Antivirus
Clearsight Antivirus
Anti-malware (can be run alongside with an antivirus):
IObit Malware Fighter
AppCheck
Immunet
Clam AV
VirIT eXplorer Lite
Hazard Shield
Spybot - Search & Destroy
Crystal Security
Xvirus
Anti-ransomware
Acronis Ransomware Protection
Cybersight Ransomstopper
RansomOff
Malwarebytes Anti-Ransomware
Kaspersky Anti-Ransomware Tool
Trend Micro RansomBuster
Anti-mining
MinerOff
Security suite (antivirus, anti-malware and firewall):
ZoneAlarm
Outpost Security Suite Free
Comodo
Forticlient
Roboscan
360 Total Security
5nine Cloud Security for Hyper-V Free Edition
Other:
Difference Between Malware, Virus, Rootkits, Spyware, Worm and Trojans
Antivirus developers and vendors: 1; 2; 3
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