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Avast vs Kaspersky Internet Security: Comparing Features & Performance for Better Choice

artekideapop 9096 15
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  • #1 16898095
    artekideapop
    Level 13  
    Hello,

    Which one do you think is better?
    Avast Internet Security or Kaspersky Internet Security
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  • #2 16898112
    Kasek21
    Level 43  
    artekideapop wrote:
    Kaspersky Internet Security
  • #3 16898114
    Anonymous
    Level 1  
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  • #4 16898123
    Anonymous
    Anonymous  
  • #5 16898127
    artekideapop
    Level 13  
    radek3p wrote:
    We are talking about test or paid versions. I had both test versions and the computer alerts terribly silenced me, they were versions from a few years earlier I got rid of them and the computer walked better.


    I mean paid versions, i.e. not those that are free. @ radek3p
  • #6 16898135
    Anonymous
    Anonymous  
  • #7 16898144
    artekideapop
    Level 13  
    I just mean the latest versions of the programs and not a few years ago.
  • #8 16898157
    Anonymous
    Anonymous  
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  • #9 16898161
    Anonymous
    Level 1  
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  • #10 16898966
    lazania
    Level 17  
    I've been using the built-in firewall and defender for several months. No problems with sudden silting while playing, and my wife doesn't call to work that the anti-virus wants or blocks something. With avast every now and then there is the scandal that the viruses are on the server with updates. I will not say anything about Kasperski.
  • #11 16899411
    Paweł1000
    Level 26  
    As for Kasperski, it's generally better to steer clear of, the US has banned its use in government facilities, I also have negative memories for it, not only that it slowed down the computer, but as a few years ago I bought Kasperski's license for 3 computers every year, finally pissed me off because it started to let malware, like malware, so it had the right to let it pass, however, I installed free Avast for a short time and this one somehow dealt with this malware (I uninstalled Kasperski and although I had purchased a further license for the next year, I did not decide to update it), I will add that microsoft Antimalware has not been able to deal with this malware too. Now I only use the defender in Windows 10 and Microsoft Security Essentials in Windows 7, since then I have no problems with viruses or malware, just add that my computers are very vulnerable to this type of virus because I have computers for pupils and students, we know they come with their pendrivas, so it's easy to get infected.
  • #12 16900079
    artekideapop
    Level 13  
    I am currently using Avast Internet Security + Malwarebytes Premium and it is fine so there is probably no point in changing it to Kasperski.
  • #13 16900090
    Anonymous
    Level 1  
  • #14 16900103
    artekideapop
    Level 13  
    @ Kraniec_Internetów
    That's right, but not for Malwarebytes. He does not bite with other anti-viruses because even the company itself writes that it is not strictly anti-virus and recommend using it additionally with anti-virus.
    In the premium version, it blocks threats in real time (not only after "catching" them).
  • #15 16900118
    Anonymous
    Level 1  
  • #16 16900144
    artekideapop
    Level 13  
    Kraniec_Internetów wrote:
    I have never used it as an antivirus. Always as something that will clean my computer and be uninstalled. I would have to try and check how it works. I am also interested in the effect of combining it with Defender, but I don't even have a way to compare them ...


    I highly recommend this Premium version. You will certainly be very pleased.

Topic summary

✨ The discussion centers around the comparison between Avast Internet Security and Kaspersky Internet Security, with users sharing their experiences and opinions. Some users advocate for Windows Defender as a viable alternative, citing its minimal impact on system performance. Concerns are raised about Kaspersky's performance, including reports of it allowing malware and slowing down computers. Avast is mentioned positively by some users, particularly when used in conjunction with Malwarebytes Premium for enhanced protection. The consensus suggests that while Kaspersky may offer strong security features, its performance issues and past controversies lead some users to prefer alternatives like Avast or built-in solutions like Windows Defender.
Generated by the language model.

FAQ

TL;DR: A forum user managing 3 PCs yearly switched from Kaspersky to Windows Defender, saying it’s “better to steer clear of.” Another reports months of smooth use on Defender. Choose Defender for low‑hassle home protection; consider Kaspersky for stricter control. [Elektroda, Paweł1000, post #16899411]

Why it matters: This FAQ helps home users decide between Avast, Kaspersky, or sticking with Windows Defender without hurting performance.

Quick Facts

Which is better for me: Avast Internet Security or Kaspersky Internet Security?

For most home users, Windows Defender offers balanced protection with fewer slowdowns. Kaspersky suits users seeking stricter controls. Avast drew complaints about interruptions. Start with Defender; move to Kaspersky if you need more advanced controls. “The best is the one built into Windows.” [Elektroda, Anonymous, post #16898114]

Is Windows Defender enough for a home PC in 2025?

Yes, for a typical home PC it’s enough when paired with safe browsing. One user states Defender is adequate at home, while Kaspersky may be safest for high‑risk needs. Adjust router and browser settings for layered security. [Elektroda, Anonymous, post #16898161]

Do paid antiviruses slow down gaming or daily work?

They can. A gamer reports Defender caused no sudden slowdowns for months, while Avast triggered interruptions and update‑server scares. Keep background scans off during play and enable Game Mode where available. [Elektroda, lazania, post #16898966]

Can I run Malwarebytes Premium alongside Avast or Defender?

Yes. A user notes Malwarebytes Premium provides real‑time blocking and is designed to coexist with a primary antivirus. Avoid enabling overlapping features that duplicate web or ransomware shields. [Elektroda, artekideapop, post #16900103]

Is it safe to run two real‑time antiviruses at once?

No. One poster warns they conflict, accuse each other of malware, and annoy users. Choose one real‑time AV and keep any second tool as on‑demand only. [Elektroda, Anonymous, post #16900090]

What is real‑time protection vs. on‑demand scanning?

Real‑time protection watches files and web traffic continuously and blocks threats instantly. On‑demand scanning checks when you start a scan. Malwarebytes Premium adds real‑time blocking alongside another AV. [Elektroda, artekideapop, post #16900103]

Should I rely on router‑level security instead of antivirus?

Router security helps by filtering traffic before it reaches your PC. A user calls it effective, but notes nothing is 100% and costs can outweigh benefits at home. Use it to complement, not replace, endpoint AV. [Elektroda, Anonymous, post #16898161]

Why does my antivirus show constant alerts?

One user suspected frequent alerts were noise designed to impress. Excess alerts reduce trust and lead to fatigue. Tune notifications, whitelist known‑good apps, and review logs weekly. [Elektroda, 762302, post #16898135]

Is Kaspersky safe to use given policy concerns?

A poster cites a U.S. government ban in agencies and shares negative experiences, then moved to Defender. If you handle sensitive work, consider organizational policy and risk tolerance before choosing. [Elektroda, Paweł1000, post #16899411]

Did Avast have issues with update servers or false alarms?

A user reports scandals around Avast updates and interruptions, while experiencing stable gaming with Defender. If you stay with Avast, enable silent/gaming modes and verify update channels. [Elektroda, lazania, post #16898966]

I’m using Avast + Malwarebytes and it works. Should I switch to Kaspersky?

If your current setup is quiet and effective, there’s no urgent need to switch. One poster running Avast + Malwarebytes reported it “is fine,” so prioritize stability and minimal friction. [Elektroda, artekideapop, post #16900079]

How do I switch from a third‑party antivirus to Windows Defender safely?

  1. Disconnect from the internet and uninstall the third‑party AV using its uninstaller.
  2. Reboot, reconnect, ensure Defender is active, and run a full scan.
  3. Re‑enable only one on‑demand tool (e.g., Malwarebytes) for periodic checks. Defender users reported smooth, low‑maintenance operation. [Elektroda, 762302, post #16898157]
Generated by the language model.
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