3 Can I run multiple Antivirus programs?
In most cases, it is not possible to run two antivirus programs simultaneously on a single computer.
Even though users may be tempted to try to implement what they might regard as ‘dual protection’
There are good reasons why trying to operate two different antivirus products will normally cause difficulties sooner or later.
Giving the antivirus scanner access to critical data is a MUST and having multiple programs injecting their code into your kernel is going to cause trouble.
For effective antivirus detection that protects against computer viruses, worms, Trojan viruses and more the antivirus software has to be allowed to penetrate to a suitable level within the computer... deep into the system kernel.
This is because the antivirus product needs to intercept system events, deep within the computer.
The intercepted data is then passed to the antivirus engine for analysis so the antivirus scanner can scan intercepted files, network packets and other critical data.
If there are two antivirus programs running on a single computer, they will each try to install interceptors into the same part of the system kernel. This is likely to result in conflicts between the antivirus monitors probably with one of the following consequences:
One of the two antivirus programs will fail to intercept system events.
One of the two antivirus programs might activate self-defense modus and consider the rival antivirus as corrupt or hostile.
Each antivirus program’s attempts to install parallel interceptors will cause the entire computer system to crash or they disable rival interceptors.
Registry corruption, Data loss, Service interruption, firmware corruption up to even permanent root damage.
These are HARD facts.
There is a exception to the rule: Malwarebytes can act as a passive On-Demand scanner and thus achieve a dual protection status, while respecting the integrity of the active main antivirus solution.
I have seen MANY members claiming that they are actually mixing different programs, but within the industry I can tell you I would lose my job right on the spot if I would try to run 2 antivirus programs (In Resident Active Modus) on our systems.
So let me make this VERY clear: You can run Malwarebytes in passive mode next to your active internet security package, however this is not recommended.
If you would run both in active mode you will see a wide range of problems going to come your way, as I explained above.
That being said the difference between Internet Security and a standalone tool are HUGE.
But they can mix if you use a proper configuration again this is not recommended unless you know what you are doing.
So bottom line:Your Internet Security = ACTIVE and Malwarebytes (Or similar tool) = PASSIVE.
This way you can mix between the rules and get away with it.
But realize that your Internet Security can do it all, so there is no need for another program.
But if you do insist then you accept the risk that it might backfire.
However tools like Mbam (Passive mode) and other standalone programs like Mcafee stinger can serve as a second line of passive protection (On-Demand)
In regards to running Multiple Internet Security programs say: Mcafee + Norton 360 + Kaspersky.
Doing this is so stupid and so dumb... you might as well throw your pc in the water.
You will not gain anything, and you will render your pc useless.
If I am taking the Industry as a standard (Which I do) then if anyone is claiming otherwise is going against what real experts say.
Or do you really think that the System administrator and security specialist of a huge company can get away with data loss when they find out that they mixed all kinds of security software?
That's why I keep saying Internet Security and Antimalware protection is a serious business and should be regarded as such.
For you on your home pc it really does not matter if you have to reinstall windows 15 times a year, what you got to lose? a few songs a few movies some banking details...
Let add a price tag to it. Say 100 dollar every time in data loss.
If I would do such a thing at my work, 1 hour of system & network downtime costs over 250k per server.
I would love to see how my boss is going to react when this happens due to my fault.
But if you want to mix programs... go for it, but do accept the risks.
I hope this explains why I sometimes come across like a bastard, but I did not intent to make you feel bad. You may not like my guide and you may not agree to what I wrote, but that does not make it any less true.
Virtually everyone who works within the industry will agree to what I wrote here.
Sure you doubt that right?
Well ask around on the forum, and ask yourself why this topic has been made a sticky?
Or ask a senior staff member to validate this topic.
Again my aim is not you feel bad, but my aim is to make you think and learn.
I am just trying to educate those who do not know or think they know.
PS:
Umbra Polaris did write a seriously great topic I suggest that if you did spend the time to read my topic, that you honor his topic with some time as well, because the info is SPOT ON.
So if you got questions or comments please post a reply.
Cheers