List of apps to compare
Windows Defender
Bitdefender Free
Kaspersky Free
What I am most interested about
Learning curve (Ease of Use)
Exclusive Features & Functionality

brod56

Level 15
Verified
Joined
Feb 13, 2017
Messages
723
Operating System
Windows 10
#1
I already have an opinion on this matter, but would like to hear yours too. It's always a popular comparison, and it would be great to take a look at it as of early 2019 in my opinion.

Most important points of comparison:
1. Perfomance impact - ram usage, internet speeds, disk speeds
2. Cloud protection and/or behavior blocker - reliability, speed
3. Offline signatures - static file detection, website filtering, false positives
4. Customization - useful settings
5. Privacy - telemetry, use of personal data
 
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Kuttz

Level 12
Verified
Joined
May 9, 2015
Messages
554
Operating System
Windows 10
Antivirus
ESET
#2
You can rule out WD because of its performance impact and mediocre protection. KFA and BD Free both are terrific AVs. When BD Free is slightly less heavy on system KFA on the other hand offers stronger protection especially its ability in detecting new threats.
 

brod56

Level 15
Verified
Joined
Feb 13, 2017
Messages
723
Operating System
Windows 10
#4
You can rule out WD because of its performance impact and mediocre protection. KFA and BD Free both are terrific AVs. When BD Free is slightly less heavy on system KFA on the other hand offers stronger protection especially its ability in detecting new threats.
I don't consider the WD performance mediocre, specially when tweaked with Andy Ful's Configure Defender. I may agree on the performance impact though.
 
Joined
Jul 23, 2017
Messages
25
#5
I do not doubt the effectiveness of WD well optimized, but I think it is not optimal that something that comes in millions of computers by default, needs to be configured with a 3º tool.

Even so, the three options seem to me valid for the average user, maybe for someone without many security guidelines would recommend kaspersky, but for someone who takes other security measures, such as most here.

I would recommend the one that causes less impact on the computer, the problem is that I don't know what that is... each site or person says a different thing.
 

brod56

Level 15
Verified
Joined
Feb 13, 2017
Messages
723
Operating System
Windows 10
#6
I do not doubt the effectiveness of WD well optimized, but I think it is not optimal that something that comes in millions of computers by default, needs to be configured with a 3º tool.
I absolutely agree. Options like PUP blocking should be accessible in the advanced settings of the Windows Defender app.

I would recommend the one that causes less impact on the computer, the problem is that I don't know what that is... each site or person says a different thing.
I would also like to see an actual comparison of performance between these products. Between fanboys' opinions and TPSC's flawed tests inside a VM, I'm yet to find an impartial test.
 

JM Safe

Level 36
Content Creator
Verified
Joined
Apr 12, 2015
Messages
2,520
Operating System
Windows 10
Antivirus
Kaspersky
#8
Kaspersky Free. Awesome, good tweaks and advanced protection against dangerous malware (ransomware, backdoors, keyloggers, etc.). @harlan4096 posted some days ago Kaspersky tweaks: Q&A - Kaspersky Security Cloud Free 2019 - Tweaks (please note these are settings for Kaspersky Security Cloud Free).
 

Pat MacKnife

Level 6
Verified
Joined
Jul 14, 2015
Messages
282
Operating System
Windows 10
Antivirus
AVG
#12
Out of these 3 i would choose Bitdefender,
but at this moment i'll find BD heavy on computer start-up, it slows down boot time... i uninstalled it a week ago and went with AVG free.
 

brod56

Level 15
Verified
Joined
Feb 13, 2017
Messages
723
Operating System
Windows 10
#13
Out of these 3 i would choose Bitdefender,
but at this moment i'll find BD heavy on computer start-up, it slows down boot time... i uninstalled it a week ago and went with AVG free.
Is it working well? I had a awful experience with Avast a long time ago and now I refuse to use any of its solutions.
 

Evjl's Rain

Level 39
Content Creator
AV-Tester Advanced
Verified
Joined
Apr 18, 2016
Messages
2,880
Operating System
Windows 8.1
Antivirus
Avast
#15
I don't consider the WD performance mediocre, specially when tweaked with Andy Ful's Configure Defender. I may agree on the performance impact though.
after tweaking with andy's tool, I felt WD even heavier than default due to extra processing in the cloud and locally
just upgraded 3 old PCs to SSDs and cleanly installed Windows 10 1803. WD slowed down everything like a turtle. I had to disable WD during installation of essential softwares and saw immediate gain in speed. Then, I installed kaspersky free with some performance tweaks, the PCs ran a lot a lot smoother
I consider kaspersky internet security and KTS with application control = heavy, though
KAV (Paid), KFA and KSCF are much lighter because they don't have application control

WD doesn't slow down much if users only browse the web, play some games and open MS office but it will definitely slow down if users run heavy tasks which are disk-intensive (copy, install new apps, export files, process data, develop heavy apps,...)

for me, the best AV which are balance between speed and protection (after all tweaks, not default) is Avast but many people don't like it due to bugs and privacy problems

in this list, I definitely choose kaspersky free because WD, BD free for me are not good enough. Tested all of them in the hub and had the results
 

brod56

Level 15
Verified
Joined
Feb 13, 2017
Messages
723
Operating System
Windows 10
#16
So I did my own tests running in my laptop and the results surprised me - Kaspersky Free seems to affect system performance the least!

Notes:
- WD: defaults + PUP protection + Network Protection
- BD: defaults, promotional messages off
- KFA: defaults
 

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