Malware comes in many forms, but one thing's for sure—you don't want it attacking your computer. We've tested nearly 100 anti-malware apps to help you find the the best malware protection. Use our free antivirus comparison and reviews, to choose the best virus protection, anti-malware or internet security. Independent Test Labs When choosing an antivirus provider we recommend you take into account test scores from independent antivirus testing labs such as VirusBulletin, AV-Test and AV-Comparatives. Best Antivirus Software and Apps 2019 Best Basic Antivirus Product. Not only does Bitdefender Antivirus Plus have nearly perfect. Best Midrange Antivirus Product. Kaspersky takes first place among midrange antivirus software. Best Premium PC Security Suite. Kaspersky Total Security has it all.

1. Best Free Antivirus Malware Software
2. Best Free Antivirus/anti-malware Program For Windows
3. Best Free Antivirus And Anti Malware Software
4. Best Free Antivirus Anti Malware 2019
5. Best Free Antivirus Anti-malware Software

Kaspersky Free Antivirus

• To stand the best chance of protecting your devices and keeping your personal information safe, you absolutely need both antivirus and anti-malware protection. Protect Yourself Before It’s Too Late The rate of malware attacks is rising dramatically, and hackers are becoming more ingenious and creative all the time.
• Best free antivirus software. Detecting this pattern and halting it before any files are unavailable should be possible without an anti-malware system knowing the specific innards of a.

Kaspersky Free Antivirus delivers excellent protection with a moderate performance impact, but it has few extra features.

Bitdefender Antivirus Free Edition

Bitdefender Antivirus Free Edition continues to be the best set-it-and-forget option among free antivirus products.

Avast Free Antivirus

Avast Free Antivirus offers lots of extra features, but its malware protection is mediocre and it may collect your browsing history.

Windows users need a strong antivirus program to ward off malware attacks, to keep their computers running efficiently and to safeguard their online identities and personal information. The best paid antivirus suites have many features to protect children, manage mobile devices and monitor a computer's firewall, software updates and other features. But some users don't want, or can't afford, to pay for those extra features and may need to go with a free antivirus program.

If that describes you, you've come to the right place. We've evaluated the best free antivirus programs based on their malware protection, system impact, ease of use and useful extra features. If you're undecided, check out our free vs paid antivirus comparison first.

So which free PC antivirus product would be best for you? Of the seven free antivirus programs we've recently reviewed, Kaspersky Free Antivirus barely edged out Bitdefender Antivirus Free Edition for the top spot. Both offer excellent protection against malware without slowing down your system, but Kaspersky lets you schedule scans and has a quick-scan option.

Bitdefender, however, is still the best 'set it and forget it' free antivirus option. After installation, it takes care of itself and doesn’t need user intervention. If you need to put antivirus software on your grandparents' PC but don't have time to maintain it, this might be the perfect solution.

Both Kaspersky's and Bitdefender's products offer only the basics. If you want features such as a password manager or a hardened web browser, normally found in midpriced paid antivirus suites, then Avast Free Antivirus might be for you. But its malware protection isn't as good as the top two and its performance impact is heavier.

MORE: Best Mac Antivirus Software

Latest Security Alerts and Threats

— Microsoft pushed out an emergency security update for all supported versions of Windows to quash an Internet Explorer vulnerability being used in targeted attacks. ADVICE: Run Windows Update to make sure your PC is fully patched.

— Thousands of Windows PCs have been drafted into zombie botnet armies by malicious ads that install browser-based applications on the computers. ADVICE: Install and use good antivirus software.

— Google has launched a new page called Password Checkup that checks to see if any password saved in your Chrome browser has been compromised in a data breach. ADVICE: Go to https://passwords.google.com/, sign into your Google account and change any passwords that the page flags.

Lean and mean

Reasons to Buy

Kaspersky Lab doesn't advertise that it has a free antivirus product, and doesn't make it easy to find the download page. Too bad, because this is one of the best free antivirus products we've ever tested, with a no-nonsense but comprehensible interface, a light-to-moderate system-performance impact and Kaspersky's unbeatable malware protection. The only reason we're not giving Kaspersky Free Antivirus a 4.5/5 rating is because it offers no extra features.

No muss, no fuss

Reasons to Buy

Reasons to Avoid

Like Kaspersky, Bitdefender Antivirus Free Edition offers nothing but the basics, and its malware protection is just as good, if a bit more prone to false-positive malware detections. Its scans are lighter on the system than Kaspersky's, but it offers fewer options — you can't even schedule a scan. It's best for users who want a set-it-and-forget-it security solution for themselves, or for a loved one.

Nearly a free suite

Reasons to Buy

Reasons to Avoid

The malware protection in Avast Free Antivirus is a peg down from the top, but it's got the best assortment of extra goodies for a free antivirus program, including a password manager, a hardened browser and a network scanner. The program is also very customizable and offers limited access to Avast's VPN service. However, it caused a pretty heavy system load in our testing.

Finally good enough

Reasons to Buy

Microsoft's built-in antivirus software has finally reached the big leagues. Windows Defender won't beat Bitdefender or Kaspersky in malware protection, but it holds its own against other free antivirus products while delivering a small system-performance impact and a surprising number of extra features, including parental controls and protection for all browsers. For the first time, we can recommend using Windows Defender as your primary antivirus solution.

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Not enough oomph

Reasons to Buy

Reasons to Avoid

AVG shares Avast's decent if unspectacular malware-detection engine while having a much lighter system-performance impact. But AVG AntiVirus Free has far fewer useful extra features than Avast Free Antivirus. The good news is that AVG's wide range of customization options and its file shredder are still available; the bad news is that there's no compelling reason to pick AVG over Windows Defender.

Best Free Antivirus Malware Software

Not what it once was

Reasons to Buy

Reasons to Avoid

Avira Free Antivirus was the best free antivirus option just a few years ago, before Bitdefender and Kaspersky jumped into the ring and Avast, AVG and Windows Defender raised their game. Now Avira's malware protection is in the middle of the pack. Its numerous extra features are mostly just teases for paid services, and its system-performance impact is remarkably heavy. We do like that it's still got a wide range of customization options.

Has its ups and downs

Best Free Antivirus/anti-malware Program For Windows

Reasons to Buy

Reasons to Avoid

Best Free Antivirus And Anti Malware Software

Panda doesn't take part in every lab test whose results we use, so its malware protection is a bit of an enigma. We liked Panda Free Antivirus' high degree of customization options and its appealing interface. We didn't like the constant ads for other Panda products, the attempts to hijack your web browser, and the fact that unlike every other antivirus company, Panda won't let you opt out of automatic system-data collection.

Honorable Mention

Essential side piece

Reasons to Buy

Reasons to Avoid

Malwarebytes Anti-Malware Free is not antivirus software. It's more of a malware-removal tool. Malwarebytes Anti-Malware Free can't protect a PC from infection, but it does an excellent job of cleaning out malware that's already on your system. Plus, it doesn't interfere with any antivirus software that's already installed. We recommend Malwarebytes Anti-Malware Free as a complement to any antivirus program.

How We Tested

To evaluate installation, ease of use, interface and performance impact, we installed each AV program on the same Asus X555LA laptop, which ran Windows 10 and featured an Intel Core i3-4005U processor, 6GB of RAM and 36GB of data on a 500GB hard drive.

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We conducted our own tests on how much each antivirus product affected our laptop's performance, using our custom OpenOffice benchmark. We timed how long it took to run a quick scan and a full scan while the laptop crunched numbers in the background.

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Best Free Antivirus Anti Malware 2019

We also assessed how easy each program was to use, the number of useful extra features it offered (including free add-on software) and how insistently each program nagged us to upgrade to paid software.

Best Free Antivirus Anti-malware Software

Our malware-detection data comes from four evaluation labs: AV-TEST in Germany, AV-Comparatives in Austria, SE Labs in England and our own lab in Utah. Each lab regularly tests major antivirus products for their abilities to detect zero-day malware and other threats.