I liked the advice from Emsisoft Anti-virus about why you should not run multiple anti-virus products.
* Potential conflicts/incompatibility issues
Modern anti-virus/anti-malware software acts like an extra protection layer that sits between the base of the operating system and the apps/programs that run on it. Developing this type of software is always challenging and requires many years of experience.Protection programs are created in different ways and it may cause unexpected crashes or freezes that are very difficult to resolve.
* Who will quarantine first
Since anti-virus products have real-time scanning enabled, it's a race between multiple anti-virus programs about quarantining potential malicious download/file scan and this may give unexpected results/errors.
* High resource usage
Since number of viruses/malwares are growing exponentially, size and complexity of anti-virus programs is also correspondingly growing and these now consume lot of CPU/storage resources. The situation will be further compounded if you use multiple anti-virus products.
So, in nutshell, avoid installing multiple anti-virus/anti-malware products as it’s not worth it. If you are happy with existing anti-virus software, stick with it.If you are unhappy with it, un-install it and then install a new one.
Ref -
* Don't run multiple anti-virus products - https://blog.emsisoft.com/2017/12/18/do-not-run-multiple-antivirus
* Latest independent tests of anti-virus products - https://www.av-comparatives.org/
* Potential conflicts/incompatibility issues
Modern anti-virus/anti-malware software acts like an extra protection layer that sits between the base of the operating system and the apps/programs that run on it. Developing this type of software is always challenging and requires many years of experience.Protection programs are created in different ways and it may cause unexpected crashes or freezes that are very difficult to resolve.
* Who will quarantine first
Since anti-virus products have real-time scanning enabled, it's a race between multiple anti-virus programs about quarantining potential malicious download/file scan and this may give unexpected results/errors.
* High resource usage
Since number of viruses/malwares are growing exponentially, size and complexity of anti-virus programs is also correspondingly growing and these now consume lot of CPU/storage resources. The situation will be further compounded if you use multiple anti-virus products.
So, in nutshell, avoid installing multiple anti-virus/anti-malware products as it’s not worth it. If you are happy with existing anti-virus software, stick with it.If you are unhappy with it, un-install it and then install a new one.
Ref -
* Don't run multiple anti-virus products - https://blog.emsisoft.com/2017/12/18/do-not-run-multiple-antivirus
* Latest independent tests of anti-virus products - https://www.av-comparatives.org/
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