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Should You Use Multiple Antivirus Programs?
Short Answer: NO!
Keywords:
antivirus, computer, programs, updaters,
performance
Key Takeaway:
You won't get a virus using multiple
antivirus programs.
Category Insights:
SECURITY — Security best practices include strong passwords, MFA, and regular
patching.
Our Reasoning
Your not likely to get a virus when using multiple antivirus programs. However
too much of a good thing can be a serious detriment to the performance of your computer.
Periodically I will get a client who has 2, 3 or even 5 antivirus programs installed on a
computer. This is a bad idea as it will bring your computer to a near standstill. It will
run like molasses. Both the active scans and background scans will work the drive to death.
On a spinning drive, this is called thrashing. The programs are literally competing against
each other for access to the disk. This activity also creates a massive backlog in the disk
queue. This results significant delays for the user to get any work done. Sometimes the user
incorrectly perceives this as a problem and they will install yet another antivirus program.
All of the installed antivirus programs are competing against each other, as well as the
person using the computer.
Keep It Simple
My advice is to pick a single, good quality antivirus program. There is NO need to
purchase the extra options such as driver updaters, software updaters etc. Just get the
basic antivirus with anti-malware. Your computer will thank you!
Reference:
#0046 Security My Thoughts on Antivirus Software