AV-Comparatives: Performance Test - April 2021


  1. Posts : 146
    Windows 11 Pro
       #1

    AV-Comparatives: Performance Test - April 2021

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  2. Posts : 149
    windows 10 Pro
       #2

    As the report indicates, I've always found Windows Defender to have the most impact on performance, which is surprising considering it is part of the OS.
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  3. Posts : 146
    Windows 11 Pro
    Thread Starter
       #3

    trevo said:
    As the report indicates, I've always found Windows Defender to have the most impact on performance, which is surprising considering it is part of the OS.
    VERY surprising, it should be the lightest logically since it comes from the people who built the OS. the biggest problem with Windows Defender is it has no whitelisting feature. Modern AVs such as ESET NOD32, Kaspersky, Emsisoft Anti-Malware, once they scan a file, they put like a whitelist stamp on it so they don't need to keep scanning it every time UNLESS its digital file hash/ has changed. Windows Defender keeps scanning the files and entire contents of a folder upon every access.

    I have a folder called software. In that folder, it has many subfolders of portable apps such as CCleaner, Tor browser, etc. I have set a custom icon for every folder to make them standout. If I had Windows Defender enabled, every time I access that folder, the icons start loading one at a time in slow motion despite me having a super fast laptop as you see in my specs and an SSD.

    Additionally, installation of programs and launching them is significantly lower but many people don't even wanna bother trying other options just because this is built in and free. I would take Panda Free Antivirus any day of the week over Windows Defender.
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  4. Posts : 149
    windows 10 Pro
       #4

    Spartan said:


    Additionally, installation of programs and launching them is significantly lower but many people don't even wanna bother trying other options just because this is built in and free. I would take Panda Free Antivirus any day of the week over Windows Defender.
    "Free" will always be popular ...Never tried Panda, Kaspersky has been my choice for years, just renewed for another year.
    (and I know they're Russian }
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  5. Posts : 5,202
    Windows 11 Home
       #5

    Spartan said:
    I would take Panda Free Antivirus any day of the week over Windows Defender.
    I did, just to shut up Windows and disable Defender for real.
    It is the lightest AV I know, only Forticlient Free comes close.
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  6. Posts : 949
    Win10 Version 21H2 19044.1645
       #6

    From the same site, protection rates. (Mar '21)

    What is difference between Online Detection/Online Protection ? Detects but does not protect ? Many are low in Detection.

    Note high false alarms for Panda and MB. Lastly, does the AV site get our stamp of approval for accuracy.


    AV-Comparatives: Performance Test - April 2021-capture.pngmm.png

    Malware Protection Test March 2021 - AV-Comparatives
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  7. Posts : 2,767
    Windows 10 Home x64
       #7

    I guess poor results for Offline detections are due to not having cloud enabled. Other than that I am pretty satisfied with MS Defender.
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  8. Posts : 289
    Windows 10 Pro 21H2
       #8

    I don't care for AV Comparatives, Webroot's reputation, aside from my own lengthy history of using Webroot, has proven their test methods to be silly and inaccurate.

    They don't seem have a very good understanding of Kaspersky either.
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