Worst Antivirus Programs

These antivirus companies are so bad, your computer will throw up!

The Top Ten

1 PC Optimizer Pro

It's fake. Don't waste your money on the "full version". - Target

Bad customer service, bad software in general, mainly preys upon people who know nothing about computers. Scam software 100%.

Gains viruses


2 SpySheriff

SpySheriff is malware that's impossible to remove. Your computer won't like it. - Target

Dumb trojan "anti-" virus. - computerfan0

This is old, and it wasn't even legitimate at all.

3 Symantec

Very good at annoying, slowing down PC and deleting non-infected files. Its capability of catching real viruses lies probably in deleting and blocking everything, which is not in an exception list. Got rid of it.

Norton used to be awful, but Symantec has improved a bit.

Worst anti-virus ever

Trash trash trash

4 Antivirus 360

Bad signatures

Virus ads everywhere

Okay and completely free antivirus sweet however it can’t detect some malware.

5 Webroot

Lol another dumbass who probably never even tried it

It isn't great as far as detection rates go, but it's good for older PCs.

6 Virus Shield
7 McAfee

It Detects almost everything, and as a guy that likes torrenting games this is annoying

The slowest antivirus ever?

Slows down performance, and generates lots of fake alerts.

Poor Performance! Slow and need enough system resources.

8 SpyHunter 4

Very nice and worth the money, but SpyHunter 5 is better. Malwarebytes blocks it falsely.


9 Avast Antivirus

If you want premium, don't be surprised if it charges 3x or more than the actual price, that just happens with avast.

List of Crash: -
1. Audio Output Driver (yet to be repaired successfully)
2. uTorrent with its downloaded contents (mkv / mp4 inclusive)
3. Windows Real-time Protection disabled even after total annihilation of Avast itself

Avoid - one of the worst AV packages out there: it lures users that are not that technically minded with price - 0. Unfortunately protection offered by Avast is equal to the amount of money it costs. Had to many cases where oblivious friends installed this malware and afterwards came crying to me asking for help.


10 Microsoft Security Essentials

You may as well just have no antivirus at all.

Bestestestest security system I ever didn't see. please don't use this it is very bad

Patch - yes please. Crack - yes please. File.exe - yes please.
Our computer needs it!

-Microsoft Security Essentials 2017

The Contenders

11 MalwareBytes Malwarebytes Inc. is an American Internet security company with offices in Santa Clara, California, Clearwater, Florida, Tallinn, Estonia and Cork, Ireland. It specializes in protecting home computers, smartphones, and companies. ...read more.

Whoever put this on is dumb. Malwarebytes is actually one of the best

Stop already! I don't understand why this is so overrated! - Target

The best antivirus ever (for nowadays)

12 Norton

Had it on my old laptop, it basically ruined it because it never left the screen and overlapped applications.

It is slowing down my computer, specially email access to server.

How is this not #1 - Easahby

The worst antvirus it's the thing that schools and mums would use

13 Protogent

Indian scam for stealing money from grandmas. The rap is excellent though

I am Proto, your security is my motto! - Fullwalking2

I am Proto, Scamming your money is my motto.

Can't even rhyme

14 Stop Sign Antivirus
15 Kaspersky

Probably a connection to Russian servers, Yes that might just be true.

That tool, that will randomly use 99% of the available computing power even though you configured it to only run while idle.

Thisis crap malware

Visit Website
16 AVG Antivirus

2018 avg is total crap, shame because older avg was good

I don't think its one but iv never tried it

Piece of Crap

The new avg is just awful! always trying to sell you something that you don't want. and very awkward to use.
used avg on more than 25 PC's for 10 years but this is the end for us!

17 TotalAV

This is con program - total waste of money and time

This is not an antivirus. This is malware.

Along with Scanguard, this is malware and is a scam

Deleting it is impossible without using malwarebytes or manualy going in to your files and deleting it, it is rougeware

18 Defender Pro

Very good, and it comes with the pc it detects everything almost

Might as well have no antivirus at all

Wont detect anything

Utterly pointless.

19 CCleaner
20 Bytefence

Trying to uninstall it takes hours, it is quite literally a virus anti-virus

This is the worst antivirus program in my opinion it just goes bundled with other software programs and when you completely remove bytefence its still there it is so hard to remove this antivirus and it just downloads itself without your permission it also popups while your using the program it came with and if it's a screen recorder it will be so hard to remove bytefence you need to go to task manager and end task WHO HAS TIME TO DO THAT when your using a screen recorder to record your gameplay

People have been having issues with Minecraft because of ByteFence. - allamassal

The worst antivirus I have ever seen

21 MacKeeper


Is annoying

Puts adware in computer. definitely avoid

22 BitDefender

I use this on my pc and it is really quick to scan my pc, 10/10

THE worst anti virus ever

This is genuinely the best antivirus out there.

It's the best antivirus

Visit Website
23 Smadav

The worst


24 Eset

Eset holds the world record for virus detection and has won more VB100 awards than any other antivirus software in the world plus it does not slow down your PC

Worst Antivirus in the market

Best I’ve used yet

Visit Website
25 Vba32 AntiVirus

Most wanted software.

Full Fake antivirus

26 ArjunAV Internet Security
27 EUniScan
28 PC Cleaner
29 Advanced System Care

It's fake. Nothing to tell about it. But one thing-"It completes full system scan just in10 seconds."

What fake about it? its not fake, Its not an antivirus, it doesn't say it is, it is what it says Advanced System Care
its not fake its very effective and useful to keep your system clean and fluent. It has very good features, unlike that idiotic TuneUp Uttilities which simply brakes your system

30 Sophos Anti-Virus

Do you want some free vbuck--- I mea, I mean free Memz virus that it will not remove? I definitely do 21/21 ez software no risk, no pc slowdown, no minecarft n fornight laggi b--b--b-b-bai...

31 Comodo

Total Lie, Comodo Is Great, It Protects me from viruses, No joke, I Have Internet Security 11 Premium (free) And It's Great, World's BEST Antivirus.

32 SUPERAntiSpyware

Does not detect anything
Slows down computer

33 BullGuard Antivirus

Don't waste your money for this

34 Net Protector

It's Fake and alters Windows Registry unknowingly

35 Avira

Piece of crap malware

36 ANG Antivirus 09
37 Eco Antivirus
38 RegClean Pro
39 Winzip Malware Protector
40 Amiti Antivirus

Works Iike a dream my Christian minecraft server has not been hacked since I switched now all my twiddling friends can continue to make our churches

More Like Protegent
There's A Virus, But Says That Your Free Virus.

41 PC Protect
42 PCKeeper Antivirus

Dangerous and fake antivirus

43 Adaware
44 Quick Heal

Slow down my pc performance

i can't use two application at same time in 1 GB Ram Pc

45 Baidu Antivirus
46 XP-Protector
47 Outpost
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