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Sophos Home Premium covers up to an impressive 10 devices Windows and Mac computers. Sophos provides capable virus protection, and worked well in passing our own anti-ransomware tests. For the antivirus software on offer — and given the 10 device ceiling — Sophos Home Premium could work out as a great value proposition for those who want to protect multiple computers.

Just note that Sophos no longer offers a long-term free version to new users. You'll see on the website you can download it for free, but that's just a trial version rather than an all-singing all-dancing free antivirus package.

We've tested all of the biggest names in internet security, we've found that the very best antivirus software in is Bitdefender. It's a superb bit of software - from its entry-level Bitdefender Antivirus Plus and its cast-iron malware defenses, excellent threat detection and genuinely value-adding extra features, right up to its all-singing, all-dancing Total Security that adds an array of maintenance tools and can be used to protect your family's computers, tablets and phones.

An antivirus app sits on your device like a guard dog, watching over the entire system and sniffing out any intruders malware , or indeed anything suspicious. In short, it offers real-time defenses against viruses or other threats, which if detected are immediately dealt with, preventing them from carrying out their destructive payload.

As well as this automated protection, you can run manual virus scans whenever you wish. Think of these as the fingerprints of malware, and if something is spotted coming onto your system that has a matching fingerprint, the antivirus leaps into action, quarantining the offender.

For more details on this topic, see our full breakdown of exactly how antivirus software works. The obvious answer is staring you in the face Consult our rankings in this article, which is based on our expert knowledge and thorough, continually updated reviews of the top antivirus players. That said, obviously you also have to bear in mind your own particular needs. Or at the other end of the scale, maybe you have a large family with a ton of devices to protect, and you need a package to cater for that.

Or maybe you want a VPN service as well as antivirus, so a bundled package will save you a lot of money on subscription fees. In short, our recommendations are here as firm guidance, but modify these appropriately based on your individual requirements. For more thoughts on this, check out our article exploring how to choose the best antivirus. The good news is that the best antivirus products are getting cheaper and cheaper to purchase, and free products are getting more and more effective A good free antivirus — like the ones we recommend on this page below — is a perfectly reasonable option for protecting your PC, with Microsoft Defender now the best we've ever seen it.

That said, premium antivirus programs offer extra features above and beyond the fundamentals. A robust system of parental controls could be a huge win for those with kids, for example. Or a dedicated anti-ransomware layer of protection that only comes with the paid-for product could help catch one of the most dreaded infections and halt it in its tracks.

For more on this, read our full piece on whether free antivirus is enough to protect you. Or just keep scrolling as we reveal today's best free antivirus software providers Paying for a premium service means you get more features like spam filters, parental controls, system scans and advanced firewalls.

This makes them more suitable for power users, those who want a bit of extra security and anyone who needs their system to run as smoothly as possible. It also means you avoid annoying pop-ups that try and tempt you to upgrade to the full version. In fact, these days you can get top quality protection absolutely free, with just about every single major vendor out there offering a free antivirus.

Avira Free Antivirus is today's best free security download If you're determined to get free antivirus, we strongly suggest that you go for our pick of best security downloads - Avira Free Antivirus. We've highlighted its long list of features below, together with information on how well it performs at independent testing labs.

A very impressive freebie. That's pretty good for a freebie, and why we have no qualms at all in naming it as our 1 best free antivirus download.

As well as the essential security smarts, we also love the clean, friendly interface and the fact it has a track record of throwing up minimal false positives. In fact, the list of features reads more like a fully paid premium package.

It throws in identity protection, a password manager, anti-scam protection to prevent phishing attempts, and even a PC cleaner to keep your system spick and span. If there's one thing we'd change then it's the tad overeager badgering - although popups and advertisements are very common to free products, and that doesn;t prevent us from wholeheartedly recommending Avira Free Antivirus.

Review and where to download: Avira Free Antivirus. Avast and AVG haven't yet fully merged, despite the former formally acquiring the latter in mid The newly combined company says the two free antivirus products will remain separate, although there's apparently a joint AV package on the way soon.

Obviously, though, Avast now has a lot more data to work with, having expanded its effective userbase and, therefore, its threat detection network to a whopping million users. The latest edition of Avast's free antivirus - now branded Avast One Essential - adds an automatic gaming mode to mute popups and reduce system load when you're firing up a processor-hungry game, which is very handy indeed, and the interface has been given a clean new overhaul.

There's a password manager, too, which is an undeniably good addition to your security portfolio. It scores well on AV-TEST's widespread malware benchmark and continues a clean sweep against 0-day attacks — presumably that expanded detection network is really helping. Less impressive is the slight negative effect Avast has on software launch times, and its slightly popup-heavy attitude. Review and where to download: Avast Free Antivirus.

Microsoft Defender formerly Windows Defender was generally seen as a bit of a joke in the not-too-distant past. It performed terribly by most measures and was a good advert for why you should really pay for antivirus. But as we explain further up this article, Microsoft Defender has come on leaps and bounds and can now legitimately be mentioned in the same company as Bitdefender, Norton and Kaspersky.

As well as very solid virus protection, Defender has extra bits and bobs like a ransomware shield, webcam protection, privacy tools and even basic parental controls and cloud backup.

Antivirusfabrikanten zijn niet altijd helemaal duidelijk over welke gegevens ze verzamelen en waarvoor ze deze precies gebruiken. Wel is het zo dat een virusscanner uitgebreide toegang nodig heeft.

Om je te beschermen tegen malafide websites, ziet een scanner bijvoorbeeld jouw surfgedrag. Gelukkig geven de meeste fabrikanten aan dat niet op te slaan en gegevens die wel worden gebruikt, alleen geanonimiseerd te verwerken.

Soms worden deze geanonimiseerde gegevens wel weer met derden gedeeld of laten ze die mogelijkheid open. En wees er ook van bewust dat met genoeg geanonimeerde data in theorie toch weer personen kunnen worden herleid.

Al met al loop je bij gratis scanners waarschijnlijk iets meer kans dat er op een of andere manier iets met je gegevens wordt gedaan, omdat het bedrijf niets aan je verdient met abonnementskosten.

Let in ieder geval op bij de installatie, zo kun je bij Avast en AVG daar aangeven of je gegevens over je internet gebruik wilt delen. Sommige gratis scanners zijn er niet in het Nederlands. Iets om rekening mee te houden als je de Engelse taal niet zo goed machtig bent. In het internetabonnement is een virusscanner op basis van het door ons geteste F-Secure Safe inbegrepen:. Er zijn ook antivirusmakers die slinkse tactieken toepassen.

Soms gebruiken ze nepvergelijkingswebsites voor antivirus. Die zijn speciaal opgezet om bepaalde virusscanners op een oneerlijke manier aan te prijzen. In een enkel geval claimen ze zelfs dat antivirus gratis is, terwijl je voor bescherming uiteindelijk toch moet betalen. Je browser is verouderd. Jouw data is veilig bij ons Wanneer je onze website bezoekt kunnen we informatie over je bezoek verzamelen door het plaatsen van cookies. Opslaan en sluiten Accepteer alle cookies.

And while Microsoft no longer offers security updates for Windows 7, Avast continues to protect its users with a Windows 7 version. A network security scanner and email and web threat detection round out the feature set. Entirely free, it offers up plenty of features and a highly competent virus detection score. As for a password manager, there's a stealth one built into the Microsoft Authenticator app for Android and iOS that syncs with the Edge browser, as long as you're signed into your Microsoft account on all devices.

We still recommend going for Kaspersky Security Cloud Free, which has even less of a system impact, better malware protection and more useful extras, but there's absolutely nothing wrong with using Windows Defender as your primary antivirus solution. Read our full Windows Defender review. Avast Free Antivirus has the best assortment of extra goodies of any free antivirus program, including a hardened browser, a gaming mode, a Wi-Fi network scanner and a recently added ransomware shield.

Unfortunately, the unlimited password manager has been discontinued. The program is also very customizable, letting you tweak its appearance and functions to suit your style.

It even offers limited access to Avast's VPN service. However, Avast Free Antivirus caused a pretty heavy system load in our testing and its scans took a long time. It also kept nagging us to upgrade to Avast's paid antivirus protection, and played bait-and-switch with features that looked like they were free but weren't.

Most significant of all, the malware protection in Avast Free Antivirus is a peg down from Kaspersky's or Bitdefender's, whose free programs also bothered us less about paid upgrades and had lighter system loads. Read our full Avast Free Antivirus review. AVG shares a decent, if unspectacular, malware-detection engine with its corporate sibling Avast while having a much lighter system-performance impact.

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.