10 Lightest Antivirus On Memory Usage During Idle and Scanning

48 Comments

1. 

   Raymond [ Reply ]

   Which FREE Antivirus is the Lightest on System Memory Usage?

   • 

     ahmed [ Reply ]

     koria pure security>>

     • 

       lol [ Reply ]

       what the F is koria pure security

       • 

         purepropowerplus [ Reply ]

         koria pure security bro, you know =)

       • 

         Tex [ Reply ]

         C’mon bro, Ahmed recommends it

     • 

       seed [ Reply ]

       i first hear about it

     • 

       Koria_Man [ Reply ]

       Thnx bro!

2. 

   Harsh Singh [ Reply ]

   Top 10 Lightest Antivirus On Memory (Scanning) Avast Free Antivirus ?

   • 

     Squidward [ Reply ]

     It really aint, took a whole gb of ram when I last used it. Now my bitdefender is acting funny and I have to change again

3. 

   ZamZam [ Reply ]

   Fastest PC & Mac Virus Protection

4. 

   Michele McDonough [ Reply ]

   What is the Least RAM Intensive Virus Protection Software?

   • 

     Colin [ Reply ]

     I would try Clamwin

     • 

       Heru [ Reply ]

       ClamWin doesn’t have on-access (real-time) protection. It mentioned in it’s website.

5. 

   Álvaro [ Reply ]

   Zoner is the best.

6. 

   kieran [ Reply ]

   kaspersky was using 100% cpu when scanning, and slowed my computer down too much in general so i just removed it

   • 

     seed [ Reply ]

     And i was have three days before big security isue with KAVFree.
     Found virus trojan and need buy full version of KAV for changes in OS. <<< WTF Kaspersky???
     And now i have very slow OS starts (with or without Malwarebytes, this is not issue of slow start) Then i install Malwarebyte trial and that found FIVE other viruses!
     KAVFree is for me now untrusted AV. And i take many years KAV like best secuirty choices.
     I think this is on purpose from Microsoft directly, to discourage peoples to use KAV, due to
     politics reasons.
     On some workstations i use free AVses, where is low security risk. Few month ago i was
     very delighted with free version of KAV, and now that issues :(

   • 

     Didas [ Reply ]

     I can confirm, I have been having this problem for last few months now. KasperSky uses 100% disk usage whenever it scans, updates in the background or does anything really.

7. 

   mkv [ Reply ]

   AFTER scanning the file system the AVG 2020 Free scanner process was using 465 MB. So much for “light memory usage”.

   • 

     Heru [ Reply ]

     Most antivirus are like that. Try using them for days without restart (usually I just hibernate my computer for faster startup), they will consume hundreds MB of your RAM.

8. 

   Raouf [ Reply ]

   I think Panda antivirus is the lightest and with the simplist interface…

9. 

   tyler [ Reply ]

   i think eset is fairly lightweight.. j always liked it although my subscription ran out.. i used it for a year with no prolems

10. 

    Nima [ Reply ]

    where is Webroot ??

    Webroot Secure Anywhere is ligher AV on World

11. 

    seed [ Reply ]

    I remember minimal RAM consumption was AVIRA but with really objectionable 1/6 screen adverts. But be aware if you finding low mem consuption, you must find alternative which
    have good virus checking test ;-)

12. 

    none [ Reply ]

    Well, this was paid for. Norton in the top 100 even? it will consume 2 gb if it can

13. 

    Nevi [ Reply ]

    Webroot is untouchable regarding low footprint.

14. 

    john [ Reply ]

    your review is a joke AVAST / AVG / others you list are some of the heaviest on the market

    • 

      jacob [ Reply ]

      That’s right . Those are the most ram hungriest antivirus in the world

    • 

      wilby [ Reply ]

      AVAST is a lead anchor in the PC’s. I’m searching here because I have it installed in a laptop with 2Gb RAM and it seems to be doped turtle

15. 

    Anon [ Reply ]

    Using Bitdefender Free, and it sucks more than 2GB on file transfer activity. WTF!

16. 

    Tim Locke [ Reply ]

    Bitfender?

    • 

      Crot [ Reply ]

      Why many website include avast and avg, every time theres a light antivirus review? Paid?

      • 

        Ngan Tengyuen [ Reply ]

        Do they even have a paid review program? No affiliate links too. I can bet you if the list is some other antivirus, there will someone just like you complain about it.

17. 

    HENDRO [ Reply ]

    How about Webroot Antivirus?

18. 

    Larry [ Reply ]

    I have Eset for our two PC home network. Looking in Task Master with my PC at idle and no apps open. Eset is using 71MB of memory. Definitely a Hog!

19. 

    TS Garp [ Reply ]

    To be honest, a good antivirus loads its fingerprint database in memory to be able to scan faster. Memory usage for me is less important than detecting a virus before it can do any harm. In fact, if AV programs store their database in swap, it will slow down your PC overall, and it would allow a virus to do harm before it would be detected.
    Check for good AV at https://www.av-comparatives.org/ and https://www.av-test.org/en/antivirus/home-windows/

20. 

    kevs [ Reply ]

    use smadav if you want lightweight effective antivirus with usb security and real time protection its free. 2.3mb ram usage only

21. 

    Kashif Hassan [ Reply ]

    Norton Antivirus 2011 ???? is this comparison 8 year old ?

22. 

    Douglas Thompson [ Reply ]

    When I am in the middle of teaching a Zoom class, a message will pop up from Norton saying that while my computer is “idle” it’s going to perform background tasks. And it does! Sometimes using so much of my resources that my audio completely goes out.

23. 

    Zarzour [ Reply ]

    The best and lightest free antivirus software is NAS!!
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    NAS -> No Antivirus Software! :-)

24. 

    dazzy [ Reply ]

    use Ram Antivirus it works smooth ,multitasking,light weighted and use machine learning technology to detect new born malware best antivirus for windows 8 and windows 10

25. 

    nooobx1000 [ Reply ]

    does windows defender uses high ram
    which is free antivirus use less ram ?

26. 

    Jack [ Reply ]

    with nothing else running, avast runs my fans and 100% on win7……how to fix constant fan running!! pleasssssssssse make it quiet again.

    • 

      Sir Henry [ Reply ]

      Cut the wires to the fan… problem solved lad!

27. 

    Didas [ Reply ]

    I can confirm, I have been having this problem for last few months now. KasperSky uses 100% disk usage whenever it scans, updates in the background or does anything really.

28. 

    Gonzo [ Reply ]

    Webroot must at least be in the top 3 of most light.

29. 

    gqqnbig [ Reply ]

    Are you sure the unit is KB? I don’t believe the memory usage can be a few KB. Is it MB?

30. 

    Anti Virus [ Reply ]

    AVG only 29.6 MB usage???
    On my computer it uses 154.7 MB out of 4 GB Ram…

31. 

    365cent [ Reply ]

    Clamwin is the best, works great for me. (Although it doesn’t have real-time protection