AV-TEST AV-TEST: Microsoft Defender, Kaspersky, Malwarebytes, Norton, can hog Windows PCs

  1. This test shows how an antivirus behaves with certain threats, in a specific environment and under certain conditions.
    We encourage you to compare these results with others and take informed decisions on what security products to use.
    Before buying an antivirus you should consider factors such as price, ease of use, compatibility, and support. Installing a free trial version allows an antivirus to be tested in everyday use before purchase.

Andy Ful

From Hard_Configurator Tools
Honorary Member
Top Poster
Dec 23, 2014
The article is not convincing because it does not use any comparative statistics. So I made a short one.
The data is taken from the tests in the period November 2022 - June 2023 in the category "Slower launch of standard software applications".

Malwarebytes - 12%, 15%, 16%, 9%, 11%, 7%, 17%, 9% ---> average ~ 12%
Kaspersky .... - 8%, 14%, 10%, 5%, 7%, 3%, 8%, 4% ----> average ~ 7%
Average AV ..- ......9% ...., ......11% , ......7%..., .....10%... ----> average ~ 9%

We can calculate differences:
Malwarebytes - Kaspersky ~ 5%
Malwarebytes - Average AV ~ 3%

So, Malwarebytes can slow the launch of standard applications by 3%. I wonder how many users can feel such a difference.
For example, 3% from 5 s is equal to 0.15 s (a blink of an eye).
Kaspersky is better by two blinks of an eye.

About us

  • MalwareTips is a community-driven platform providing the latest information and resources on malware and cyber threats. Our team of experienced professionals and passionate volunteers work to keep the internet safe and secure. We provide accurate, up-to-date information and strive to build a strong and supportive community dedicated to cybersecurity.

User Menu

Follow us

Follow us on Facebook or Twitter to know first about the latest cybersecurity incidents and malware threats.