I need some recommendation on free or open source antivirus software for Windows 10.
Can anyone tell me about it? Thanks
For open source antivirus solution, the most recommended is ClamAV®.
ClamAV® is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats.
Open source antivirus software which is actively maintained
ClamAV includes a multi-threaded scanner daemon, command line utilities for on demand file scanning and automatic signature updates.
However if you are just looking for a free alternative you can go with Windows Defender (Remember free for personal use is not necessarily open source)
it is integrated in Windows, officially supported by Microsoft, and works in collaboration with Windows Updates to keep your systems secure.
360 Total Security is a great software to protect your system against viruses, trojans, malware, etc. This antivirus suite is using four security engines: 360 Cloud Engine, 360 QVMII, Avira and BitDefender.
The software works fast and this is the most important thing for users. Of course with priority for protection against viruses.