Which is the best free antivirus

Best online doctorate in project management degrees Top picks. You agree to receive updates, promotions, and alerts from ZDNet. You may unsubscribe at any time. By signing up, you agree to receive the selected newsletter s which you may unsubscribe from at any time. You also agree to the Terms of Use and acknowledge the data collection and usage practices outlined in our Privacy Policy. What are you looking for? Preferences Community Newsletters Log Out. Ed Bott Senior Contributing Editor Ed Bott is an award-winning technology writer with more than two decades' experience writing for mainstream media outlets and online publications.

Full Bio. Hope you like upsell offers. Avira Free Security. Antivirus and much more maybe too much. Bitdefender Antivirus Free. The minimalist antivirus alternative. Kaspersky Security Cloud. From Russia, with a few extras.

Sophos Home Free. Manage up to three PCs from the web. ZDNet Recommends. Toda View now at AVG. Avira Free Security Antivirus and much more maybe too much Avira Free Security includes basic antivirus scanning, as expected, but it also includes a pair of extra modules intended to improve performance and safeguard privacy.

The performance tab of the Avira console includes options for cleaning the registry, View now at Avira. Bitdefender Antivirus Free The minimalist antivirus alternative Bitdefender, a privately held company based in Romania, has a solid reputation for its paid security products.

Bitdefender Ant View now at Bitdefender. Kaspersky Security Cloud From Russia, with a few extras Eugene Kaspersky, who founded Kaspersky Lab, argues that offering free protection to its customers is part of its core mission.

Yes, you will see upsell offers in Kaspersky products including a can't-miss red "Upgrade package" button on the Kaspersky View now at Kaspersky. After 30 days, your installation is downgraded to the free edition and you lose the ran View now at Sophos Home Free. Is the Microsoft Defender Antivirus included with Windows 10 good enough?

Do independent antivirus test results matter? While the latter is almost a free security suite with lots of bells and whistles, AVG AntiVirus Free is the quiet, neglected child that gets the hand-me-downs. The good news is that AVG's wide range of customization options and its file shredder and system optimizer are still available, and its interface is open and easy to use.

Worst of all, given its middling malware detection and dearth of extra features, there's no convincing reason to choose AVG AntiVirus Free over the built-in and overall better Microsoft Defender.

Malwarebytes Free, formerly called Malwarebytes Anti-Malware, is not antivirus software. Instead, it's a very useful malware-removal tool. What's the difference? Unlike antivirus software, Malwarebytes Free can't prevent a PC from being infected. But it does an excellent job of cleaning out malware that's already on your system, as well as removing legal adware and potentially unwanted programs that antivirus software often ignores.

Malwarebytes Free doesn't interfere with any antivirus software that's already installed, so it's perfectly safe to install it alongside one of our recommended brands. Just don't upgrade to the paid Malwarebytes Premium, true antivirus software that does poorly in lab tests and which will conflict with other AV programs. We recommend Malwarebytes Free as a complement to any of the best antivirus programs, free or paid.

Read our full Malwarebytes Free review. Before you buy antivirus protection, figure out what you need. If you have young children at home, then consider midrange antivirus products, most of which include parental controls.

Do you want an all-encompassing security solution? Or are you a techie who understands and the risks of using the internet? Then a low-priced basic program might be all you need.

MORE: How to buy antivirus software. Once you've got your priorities figured out, then determine how many machines you'll need to protect. Most vendors offer single-device licenses for Windows PCs. But multi-device, multi-platform licenses for five, 10 or more computers and mobile devices are available in midrange and premium antivirus packages, covering Windows, macOS, Android, iOS and sometimes even Linux.

Some vendors offer plans that cover an unlimited number of devices. Gone are the days when you could walk into a store and pay a one-time fee for an antivirus product that came in a box off a shelf. All the vendors now sell their software licenses as yearly or multiyear subscriptions. The upside is that you'll always get the latest software, which you can download and install straight from the internet.

Many antivirus products are sold online for much less than their list prices. But each brand offers basic, midrange and premium configurations of features and pricing, with every step up adding more features.

Think of autos at a dealership. You can get a base-model car that will get you from place to place just fine. For a few grand more, you can buy a car with satellite radio, but no heated side-view mirrors, alloy wheels or in-car Wi-Fi hotspot. Or you can spend a lot more to get a loaded car with all the fixin's. Antivirus makers also hope you'll spring for extra options, whether you need them or not. The one thing you can't trade up to is a bigger engine: All the Windows antivirus products in a given brand's lineup will use the same malware-detection engine and provide the same level of essential protection.

The software will have essential malware protection and maybe a password manager or a two-way firewall. They generally add parental controls, some of which are very good, plus a few other features such as webcam protection.

They often include multi-device licenses and antivirus software for Mac and Android devices. At the top are the premium "security suites," which toss in all the extra security tools an antivirus brand can offer, such as password managers, VPN client software, backup software, online storage and even identity-protection services.

The password managers are often quite good, but the online storage can be paltry and the VPN services often don't give you unlimited data. We've collected the best premium antivirus packages on this list of the best internet security suites. Our evaluations are based on each antivirus program's interface, performance, protection and extra features. Was the interface intuitive and user-friendly? How badly did malware scans slow performance? How well did the program detect and remove malware?

Does the program offer useful additional tools? Some of our newer performance tests were done on a Lenovo ThinkPad T with a 2. To assess a program's impact on system speed on both Windows and macOS, we used our own custom tests, which measure how long a CPU takes to match 20, names and addresses on an OpenOffice or Excel spreadsheet. The longer it took the laptop to finish either test, the heavier the performance impact.

Each lab subjects the major antivirus brands' products to stress tests involving thousands of pieces of malware, including hundreds of previously unseen samples. Kaspersky antivirus products have been banned from U. Because the company is Russian and antivirus software can peer deep into a PC, using Kaspersky software would create an unacceptable risk for persons and organizations involved in national security and critical infrastructure.

However, we still think Kaspersky software is perfectly safe for home users. We've seen no evidence to convince us otherwise. Kaspersky researchers are well respected throughout the antivirus industry, and the company has publicly exposed Russian cyberespionage campaigns as well as those from the United States and other countries around the world.

Paul Wagenseil is a senior editor at Tom's Guide focused on security and privacy. He has also been a dishwasher, fry cook, long-haul driver, code monkey and video editor. He's been rooting around in the information-security space for more than 15 years at FoxNews. If you use a Windows PC, you'll need to have one of the best antivirus programs installed, whether free or paid.

View Deal. Bitdefender offers the best value in antivirus software. Norton packs in everything but the kitchen sink. Kaspersky Total Security. Specifications Anti-theft: Yes. Backup software: Yes.

Firewall: Yes. Game mode: Yes. Hardened browser: Yes. Parental controls: Yes. Password manager: Yes. Ransomware rollback: Yes. Webcam protection: Yes. Virtual keyboard: Yes. VPN: Limited upsell. Wi-Fi scanner: Yes. Bitdefender Antivirus Plus. Specifications Anti-theft: No. Backup software: No. Firewall: No. Parental controls: No.

Webcam protection: No. Reasons to avoid - Heavy background system impact. Norton Deluxe. Hardened browser: No. Ransomware rollback: No. VPN: Unlimited. Reasons to avoid - Heavy slowdown during full scans - Pricey. McAfee Internet Security. Virtual keyboard: No. Reasons to avoid - Very heavy performance hit - No parental controls on mid-priced tier. Trend Micro Maximum Security. Specifications Backup software: No. Reasons to avoid - Heavy performance hit during scans - Many false positives on some tests.

Avira is my 1 pick for the best free antivirus in If you need a free antivirus, take a look at our list of the best free antiviruses in or just download Avira Free. If you want the best protection for all of your devices, you need to pay for a premium antivirus program like Norton or Bitdefender. While there are literally billions of malware attacks reported annually, trojans and adware are consistently the most common types of malware found on Windows computers.

Trojans look like other files with extensions like. If you decide to uninstall your third-party antivirus, your PC will automatically ask you to reactivate the Windows Defender antivirus. Professional Reviews. Affiliate Commissions. Reviews Guidelines. Katarina Glamoslija Updated on: January 13, This article contains. Short on time? Download Avira Free Security for Windows here.

Quick summary of the best free Windows antiviruses for 1. Kaspersky — Free extras like a VPN, dark web monitoring, and a password manager. Malwarebytes — Minimalistic antivirus with on-demand scanning. Sophos — Good real-time scanning with remote access for 3 PCs. Comparison of the Best Free Antiviruses for Windows in Here are a few of them: Avast. While Avast — and their subsidiary antivirus company AVG — continue to offer two pieces of widely used free antivirus software Avast Free Antivirus and AVG AntiVirus Free their repeated privacy violations have caused too many concerns.

You can read more here. McAfee is one of my favorite antiviruses of It comes with an advanced anti-malware engine, excellent web protections, and a VPN with unlimited data. Why should I use a free antivirus instead of Windows Defender? Is it safe to use a free antivirus?