Why you should never have more than one antivirus installed on your computer

you should never have more than one antivirus installed on your computer

The antivirus is an essential element that should not be missing in any computer. Whether it is free or paid, the one that comes from the factory with the operating system or one that is downloaded on its own, it is important that this software is the first thing that works correctly to avoid, as much as possible, the entry of ‘malware’ on the PC.

The security in this type of technological devices is very important since it is usually stored and manipulated all kinds of personal information. Antiviruses, like everything in this life, are not infallible: malicious software evolves by minutes and companies are not always able to nd the news in time and update their antivirus so that users are fully protected. Therefore, there are many people who wonder if it is not better to have two antiviruses: in this way, if one fails, the second can detect the threat and act accordingly.

For the most hypochondriacs this solution is wonderful, but realistically, the decision could not be further from the ideal: installing more than one antivirus on any computer is an error and then we explain why.


The function of an antivirus is to track the ‘malware’ of the computer, search even in its last corner so that there is no threat. These searches are carried out indiscriminately, that is to say, they search superficially in the less that are downloaded or clicked on as in the most hidden pieces of software code. Thanks to this they are able to detect viruses anywhere.

If you have two antivirus programs, both will do the same: track the less one by one. At the moment in which both coincide in the same point, the usual thing is that they track each other and detect things in themselves that activate the virus alert. This will cause one of them to stop working, to block each other and threats are not detected, and even the computer does not respond properly.

Following the way to operate, two antiviruses working on the same computer will contradict each other. Each development company denies what is a virus and how to act accordingly, so the most normal thing to happen is that one of the two antiviruses detects a certain element as harmful and the other does not because they contact. Who to believe when false positives are given? This is something very difficult to delimit when two or more programs are operating on the same.

Another aspect to highlight is the issue of notifications. When an antivirus detects anything as negative for the system, the program sends you or displays a notification on the screen so you know that it has detected and eliminated it or that you give the necessary permission in order to be able to carry out its work. When there are two antivirus programs installed, both will try to signal and delete the same threats, so they will not stop skipping reports and notifications about it.

In that fight for the virus, when the threat is going to be eliminated, an antivirus will detect that the other program is using the le and vice versa so that the threat will last much longer than it should (if it can be eliminated in a way definitive, of course). The duplicity of functions brings more problems than joys.

Finally, it should be noted that an antivirus is a ‘software’, so it requires computer power and resources to perform its work. If already one of these programs requires enough to work (the antivirus itself lets you choose if you want more or less deep searches depending on the resources you want to allocate), two can wreak havoc on your computer, making the efficiency and power of the system (performance) decline and things do not work as they should.


 If you already have several installed, uninstall one of the two antiviruses as soon as possible. Keep in mind that if you have Windows 10, Windows Defender comes as standard, which is quite effective when performing your work; If you install a second antivirus in addition to this one, the one that comes from the factory is automatically disabled to avoid conflicts.

The best thing is that you inform yourself about the antivirus in the market and select one that suits you and the resources you have on your PC. There are many payments, such as Panda Security, and others free, such as AVG. Take a look at forums to see the opinion of people or ask a trusted computer if you do not trust what you and out there. Do you know which one best suits your needs? Save nit has the best computer antivirus for you.

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