Should I install two antivirus in one PC?

Installing more than one antivirus on your PC is like flirting with danger. Running two antivirus in one PC is somewhat similar to having a backseat driver in your car. Each is just good enough to protect your machine singlehandedly, but the uninvited instructions (read, obstructions) coming from the other will create a bizarre combination, leading to a situation of uncertainty and resistance between the two programs – and no second thoughts, your PC will be caught dead somewhere in the middle.

Are you using two antivirus in one PC? Are you one of those who’re fascinated by the idea of using multiple antivirus programs simultaneously on one computer, thinking of it as a security enhancement or like adding some extra layers of safety or something? If yes, then this article is article is something tailor-made for you – read on!

A ‘catch 22’ situation

We understand your concern over the security and privacy of your computer, the data stored on it and all things said but, repentantly, using multiple antivirus programs is nothing but asking for trouble. And in this article, we’ll explain why.

It’s not a battlefront where multiple weapons ensure you gain an early advantage over your competitors.

When it comes to protecting your computer against an array of intrusions, Trojans, viruses, bots, spyware, malware, rootkits, potentially unwanted programs (PUPs), etc., being ‘armed to the teeth’ with multiple applications is not the solution.

Why using two antivirus programs at once is a bad idea

  1. Counterstrike

Consider the following statements:

  • The main aspect of an antivirus’s functionality is to search your PC for applications that tend to monitor and send important information about your computer to outer third-party resources.
  • An antivirus ‘transfers information’ about your system to its database and servers for multiple reasons, one being the lookout for latest virus definitions.

Now say you have two antivirus applications X and Y installed on your system, and both ate connected to their respective database servers for information exchange. In such event, as per the two statements listed above – antivirus X will identify antivirus Y as a virus or potentially unwanted application that’s sending your system information to an outside resource (Y’s servers) and vice-versa.

The two will try to block and remove each other. Moreover, both the programs will look to initiate a scan each time you open a new file, resulting in higher consumption of CPU resources.

As a result, a conflict will be established between the two programs, which might lead to corrupt registry entries and unstable Windows.

  1. Power drain-out

Running two antivirus in one PC at the same time is nothing but redundant, and redundancy is certainly the last thing you wish to see in this case. As each running application uses clock cycles and RAM, thereby slowing down other running applications considerably.

An antivirus, in general, makes a thick use of system memory for operations like system scan, definition update, real-time monitoring, etc.

Running two instances of such operations at once will drastically gorge over your system’s efficiency to leave your computer with hangs, crashes and freezes, all for running two redundant operation that would have done nothing good for your system in any case.

  1. Two-way goat-grabbing

Consider this: Each time the antivirus X detects a virus, it will remove it and quarantine it. The quarantined file will, then, no longer be a potential threat for you; however, it will still be there on your computer. Now every time the antivirus Y detects the quarantined file, it will attempt to remove it and quarantine it as per its own definition algorithms, resulting in you getting repeated bogus notifications and alerts about the file by antivirus Y.

These unwanted report will not just interrupt your computing, but will also slow down your system significantly.

For those who wish to be double-sure

Using one antivirus program, kept up to date continually, will suffice your needs for the most part; however, if you’re still sweating bullets over security concerns and wish to add something more to it then we recommend you go with an on-demand anti-malware program that’s technically an executable .exe file, meaning it doesn’t run a continuous memory-sapping process activity on your CPU.

Just run it, update malware database (internet connection required), scan your system to remove malware, and simply close it once you’re done. It won’t run any process in background.

Bottom line

Viruses and other potential threats can truly be a nightmare for us on any given day but going for multiple antivirus programs is definitely not the best way out. With so many disadvantages of keeping two antivirus in one PC, there’s nothing much too bargain for.

So break the shackles of redundant antivirus programs linked to deprived system performance, and choose a good all-round-care solution for your system.

I prefer the Kaspersky suite I’ve been using for a while now. I run it once a week, keep it up-to-date with latest virus definitions, and guess what – so far, so good! You may like to run through this short video to know more about using two antivirus in one PC.

What your take on the keeping two-antivirus thing, especially after walking through this post? Which antivirus utility you invest your faith in, and why? Do drop us a comment below.