I’m often asked to remove viruses and other forms of malware from ailing computers, and a common problem I encounter is folks running two or more antivirus programs at once.
When it comes to virus scanners, more is not a good thing. I know that probably sounds like it can’t be true, but it really is.
Before I discuss why that is, here’s a quick overview of the two primary types of anti-malware programs:
1 – Full-Time / Always Running – Antivirus programs such as AVG, Avast and others run continuously in the background, protecting your PC from threats on an ongoing basis. It is essential to have ONE of these programs running at all times if you use your computer to connect to the Internet.
2 – On Demand – These anti-malware programs should be run periodically as a “backup” scanner to catch any nefarious code that might have slipped through the cracks in your regular full-time antivirus program (and they ALL have cracks).
The most popular on demand anti-malware program (and one I strongly recommend) is the free version of Malwarebytes.
Whenever two antivirus programs run at the same time they tend to fight one another, reducing your overall protection against viruses and other malware by a large margin.
In other words, ONE good full-time antivirus program will do a better job at protecting your PC from malware than any two of them combined.
My recommendation is to pick ONE high quality full-time antivirus program and go with it (personally, I use Avast), then run the free version of Malwarebytes about once a week to catch and remove anything that might have slipped in through the cracks.
Important: When you download the free version of Malwarebytes the installer will actually install a 14 day free trial version of the full-blown Malwarebytes Premium program, which runs full time to offer real-time protection.
After the trial period has elapsed the trial version will automatically revert to the free version unless you pay for the upgrade.
That means during the 14 day trial period Malwarebytes will be running full time. And as mentioned above, we don’t want that.
Luckily, it’s easy to turn Malwarebytes real-time protection off by following the instructions on this page.
Bottom line: The combination of one full-time antivirus program supplemented by periodic scans with Malwarebytes will give you a high level of protection against viruses and other forms of malware.
Bonus tip #1: Every now and then you should seek a “second opinion” when your antivirus scan says your PC is malware-free. This post list seven easy ways to get that second opinion.
Bonus tip #2: Want to make sure you never miss one of my tips? It’s easy! Just…
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