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The term "antivirus software" stems from the early days of computer viruses, in which programs were created to remove viruses and prevent them from spreading. However, over the years, different types of malicious software, often called malware, emerged as threats to personal and work computers worldwide. "Malware" is an umbrella term to describe several different kinds of malicious programs, including computer viruses.

Although anti virus software evolved to combat new malware, the term "antivirus" stuck, even though the term antimalware is truer to the softwares capabilities. To give you an idea of the different types of malware out there, weve identified malware types that are potential threats to computer systems today.

Worms
These malicious programs are designed to replicate themselves quickly with the intent to spread to other computers, often through a computer network. Although they may not be designed to intentionally impair computer systems, worms generally do some sort of damage or harm to the network itself by consuming bandwidth, at the very least. Most worms are designed only to spread as quickly as possible, so they may not try to change the computer systems they pass through. However, worms have been and are capable of creating backdoor security vulnerabilities, deleting files or even sending files via email. This is a common method for spam senders to spread junk email quickly, as the more computers the worms infect, the faster the spam mail spreads.

Trojan Horses
Trojan horses, or Trojans for short, are different from worms in that they are not designed to replicate themselves. Rather, Trojans are designed to trick you into downloading and executing them to cause data loss, theft and sometimes total-system harm. Just as in the ancient Greek story of the wooden horse designed to deceive the soldiers of Troy, Trojans present themselves as useful, interesting or routine programs to trick you into installing them on your computer.

Spyware
This software is designed to gather information about you without your knowledge. This information can be sent to another party without your consent, and in some rather malicious cases, it can even be used to take control over a computer. Spyware is capable of collecting any type of data, including your internet history and banking information. Some forms of spyware can install additional software or change your internet or browser settings, which can be a mere annoyance or a problem that can take days to fix.

Ransomware
This incarnation of malware infects your computer with the intention of restricting access to your computer system, perhaps preventing you from surfing the internet or accessing the hard drive, and then demanding a payment to the malware creators. The trouble with this software is that it tries to imitate the look of genuine, trusted software to trick you into buying a solution. For example, some forms of ransomware tell you that your user license for a particular application has expired and you need to repurchase the license. Some of the trickiest ransomware creators have acquired millions of dollars from unsuspecting users.

Rootkits
Rootkits are stealthy types of malware that attempt to hide from typical methods of detection and allow continued privileged access to a computer. This essentially means that the rootkit attempts to gain administrator access on your computer and then hides itself so you dont know it is on your system. This type of malware is generally difficult to detect and remove because it tries to embed itself thoroughly and deeply into your computers system.

Malware is not limited to these five examples, but this gives you a sense of how malicious and vicious malware can be. Fortunately, antivirus software is designed to combat these threats by preventing the programs from entering your system and quarantining and removing any malware that does get through. The best way to protect yourself from malware is to update your computer system when prompted and to purchase third-party antivirus software that protects your computer 24/7.

You may ask yourself why you need antivirus software when your computer comes with, or makes readily available, free antivirus software found in Windows Defender and Microsoft Security Essentials. Windows Defender has been available since the Windows Vista days as an antispyware program, designed to monitor and detect programs that try to gather information about you without your knowledge. With the release of Windows 8, Windows Defender was upgraded to offer additional antivirus protection features. Windows 10 comes with Windows Defender built in to the operating system itself. Microsoft Security Essentials offers antivirus protection against viruses, spyware, Trojans and rootkits, and it is available on Windows XP, Vista and 7 but not on Windows 8.

With these protections in place, why would you ever need to download a third-party antivirus program? The answer is performance.

Although Windows Defender and Microsoft Security Essentials offer built-in support and Microsoft continues to improve upon these systems, they dont generate high scores in the tests conducted by AV-Test, the respected independent antivirus software test lab. This is expected to a point, as these programs were designed as a baseline of protection for users who dont plan on purchasing commercial antivirus protection. However, AV-Test regularly publishes its test results comparing both Windows Defender and Microsoft Security Essentials to the top third-party antivirus programs. The third-party systems score higher every single time.

So, is antivirus software necessary when Windows already has built-in protections against viruses? Although baseline virus protections can give you some sense of security, you want the top-performing antivirus programs to make sure you are always protected. AV-Test tests two separate categories of malware or virus interception: the detection of widespread and prevalent viruses and the detection of zero-day, or brand-new, malware attacks. In both categories of tests, Windows Defender and Microsoft Security Essentials performed poorer than the industry standard, regardless of which Windows operating system was used during the tests. This means that third-party antivirus programs are more capable of protecting your computer, and you, against malicious virus attacks. Visit our learning center to find out more about how the top antivirus software can help you secure your computer.

As you search for the best antivirus software, youre going to run into free software that claims it is as capable as paid programs. If you were to rank antivirus software categories into three different tiers, youd find free software in the bottom tier, with the least functionality and protection. Although free software can be enticing, free antivirus protection is not as capable as paid software. All free programs can scan for viruses, but only some of them scan for malware automatically and offer real-time protection or browser add-ons to help you avoid bad links. Most advanced features are limited to paid antivirus programs.

One annoyance of free antivirus software is that each program displays ads for the full, paid version of the product. This doesnt detract from the free versions performance or capability, but it can be distracting and annoying. Some programs even immediately launch your web browser and link to their companys website if you click on a feature that isnt available in the free version, which may be minor but annoying nonetheless.

Perhaps the biggest frustration with even the best free antivirus programs is the general lack of support offered by the developers. Paid programs generally offer extensive technical support, allowing you to contact the manufacturer via email, phone and live chat. Free programs generally leave you fending for yourself with user manuals or a knowledgebase in which you have to comb through information before you find helpful material specific to you.

Perhaps the most confusing part of shopping for antivirus software is finding the best program for your needs. Besides free programs, there are generally three recognized tiers of virus protection: antivirus software, internet security suites and premium security suites. Antivirus software is the lowest tier and is regarded as entry-level viral protection. Internet security suites, the next tier of protection, offer more functionality with further protections, such as firewalls and antispam tools. The top tier of virus protection is premium security suites, which are comprehensive tools to help you protect your system from the most aggressive malware with a variety of measures and protections.

Each tier of PC virus protection lends itself to different users in different situations. Here are a few of the main components found in antivirus suites that you wont find in entry-level antivirus software:

Antivirus Software
As stated above, antivirus software is the entry-level version of virus protection for your PC. That is not to say this software is ineffective, as it can protect your personal computer from even the most vicious viruses. In fact, all antivirus software includes tools to block or remove spyware, worms, rootkits and other malware types. Rather, this particular set of virus protection software has fewer features than the two antivirus suites. This software does include the ability to scan incoming email for potential threats, automatically clean or quarantine infected files, and create bootable rescue disks, to name a few of its many features.

Internet Security Suites
Internet security suites generally contain all of the tools found in entry-level antispyware, such as antimalware, PC tune-up utilities, safe online banking and shopping, secure browsing, vulnerability scanning, and privacy protection. However, these suites include additional features that add more levels of security and protection to your computer system. Most internet security suites include an alternate firewall from the one included with the Windows operating system, and many even offer social network protection designed to detect threats through your online social presence. Additionally, these antivirus suites include parental controls to limit where your children go while on the internet, which can protect the computer system, and more importantly, your children.

Premium Security Suites
Although the additional protections found in internet security suites are highly valuable, premium security suites offer even more protection. Just as internet security suites contain all of the features found in antivirus software, premium suites include all of the features found in internet suites. These programs add extra layers of protection in the form of file shredders, online backup, system tune-up utilities and password managers. In other words, these suites tend to be the best of the best, offering an entire arsenal of defenses and protection against malware.

With the different tiers of computer antivirus software demystified, you can determine the level of security you require and apply that to your particular situation. Although they aren�t the best or most comprehensive programs, free antivirus software allows you to scan and remove threats on your computer, for the most part. However, free software lacks the functionality, features and overall support that is readily available on paid programs. Entry-level antivirus software provides significant advancements over freeware, and its feature set provides enough functionality for many home users. Internet security suites provide even more features, while premium security suites are the pinnacle of PC protection.

No matter which antivirus software catches your eye, make sure you consider help and support before making your final decision. Look for a program that offers 24/7 access to support through email, phone or live chat. Regular, easy access to support ensures that you can get the help you need, whether you have a simple question or your entire computer system crashes and you need immediate help. Whether youre looking for protection on your Windows 10 tablet, Windows 8 laptop or Windows 7 business computers, make sure the software has numerous means of technical support.

Regardless of what your small business does, youve worked hard to build it and keep it moving forward. Even if you dont want to purchase antivirus software for your personal computer, you should consider antivirus protection for your business computers to ensure that you, your employees and your clients are safe from aggressive malware. As our computers become more advanced with more meticulous, refined technology and software engineering, hackers and viruses follow suit and adapt to become more efficient and malicious. The last thing you want is to leave a door open for an attack that can affect your entire business in one fell swoop.

However, choosing the right antivirus software for your business may seem like a daunting task, and it can be tempting to purchase the most expensive, premium programs, assuming they meet all of your needs. This is not necessarily the case. In our lineup of the best small business antivirus software, we evaluated the overall performance of each program and compared their features to help you determine which programs can serve your needs. As you consider which software is right for your business needs, consider the following.

Licenses & Pricing
First, if youre running a shop on your own, kudos. Second, a one-man-band business doesnt require antivirus software with 20 user licenses to stay up and running. On the other hand, if you employ a few people who require personal work computers, you dont want to purchase licenses for only one or two of the computers. Every employee should have their computer protected so that a virus doesnt make its way through an unprotected system and travel from computer to computer within your business.

Make sure you protect every computer within your business from virus attacks, no matter if you have one computer or 20. Also, as a small business, you want to make sure the software you purchase is affordable. Fortunately, most antivirus programs are priced similarly to each other, so you dont have to worry too much about searching for the best bargain.

Malware Protection
If youre purchasing antivirus software for your small business, you want to make sure it performs its most basic function � protecting you from malware � well. AV-Test put all the software in our antivirus comparison through rigorous tests to determine how effective each program is at detecting well-known malware and emerging, zero-day viruses. The very best programs scored 100 percent in both known and emerging malware protection. Look for antivirus software with high scores, as these programs are capable of defending you and your business against malicious threats.

Features
One of the main elements that separates antivirus software that can serve your business needs from programs that leave you wanting more is the security feature set. If your business constantly sends email to external clients, look for software that offers email protection, a feature that scans incoming email for malware. If hardware security is a concern, look for programs that are capable of locating lost or stolen mobile devices such as laptops, tablets and phones. Some programs allow you to lock or wipe the content off laptops remotely, which is a great feature that protects you against the theft of proprietary information contained on the laptop.

Another element to strongly consider is which operating systems the antivirus software can protect. Every small business antivirus software program we reviewed is capable of protecting PCs, but only some programs can protect Macs or tablets. If you need to use Windows or Linux servers, make sure the software you purchase is capable of defending these systems from malware.

Antivirus software is a necessity in todays business world. Over 200,000 new malware cases appear on a daily basis, meaning every single day there are new ways your business is at risk of falling victim to a malware attack. A lack of computer security can halt even the strongest businesses in its tracks. Even large corporations suffer from malware attacks, which always catches the attention of the media. Most attacks against corporations are targeted attacks, meaning a person or group of people is specifically trying to harm that entity via malware. Fortunately for you, most small businesses are only at risk for untargeted threats. The best way to protect your small business from hacking or malicious viruses is to find the right antivirus software for your company. This will allow you to rest easy.

In July 2015, Microsoft released the latest version of its operating system: Windows 10. As mentioned earlier, Windows 10 comes with Windows Defender as a built-in antivirus, and it offers a decent level of protection until you choose to install a third-party antivirus. Most Windows 8 antivirus solutions work on Windows 10, so you shouldnt have problems getting the software to work properly. AV-Test evaluated 20 Windows 10 antivirus products in September and October of 2015. The tests concluded with four products earning perfect scores: Bitdefender, Kaspersky, Norton and Avira.

With the release of Windows 8, Windows Defender replaced Microsoft Security Essentials as the baseline of malware protection. Although Microsoft continually updates and improves upon Windows Defender, this security system does not perform as well as third-party Windows 8 antivirus programs. According to the German software test lab AV-Test, the products we reviewed performed rather well compared to Defender, demonstrating unusual strengths in intercepting malware while not being too strenuous on the overall system performance.

Performance
The tests Windows 8 antivirus software underwent are broken into two categories: zero-day, new threats and widespread, known threats. The industry-average detection rating of brand-new viruses is 97 percent. This means that third-party antivirus software is capable of catching most, and in some cases all, of these new and unknown viruses, which is amazing.

Defender, however, only averaged 73-percent detection, which is significantly lower than the industry standard. During the tests against widespread and known malware, third-party programs were capable of detecting 99 percent of all the viruses sent their way, while Defender was only capable of detecting 74 percent of these viruses. What this means is the very best virus protection for Windows 8 is found in the software we reviewed rather than Windows Defender. The ability to detect malware is the most important component for any antivirus program, so performance was highly weighted in our ranking process.

Another element to consider when looking for the best antimalware software is how impactful each program is on your computer. AV-Test measured the effects each program had on Windows 8 during visits to websites and downloads; through these tests they found the industry average was three seconds. The very best antivirus software for Windows 8 had no effect on the overall system performance, while Windows Defender slowed the system by five seconds.

However, Defender performed better than any other antivirus program when it came to false labeling of nonthreatening files as malicious viruses. This is, in part, due to the fact that Defender takes slightly longer and uses more resources. During a test of 525,920 safe file samples, Defender only mislabeled one sample as a threat. The industry average for false labeling is six detections, according to AV-Tests results. Although Defender does a great job identifying safe samples, it doesnt make up for the fact that it misses a higher percentage of unsafe samples.

Features
Every single program we considered for Windows 8 is capable of detecting spyware, worms, Trojans, rootkits and other types of malware. All of them are also capable of scanning incoming email and even instant messages for potential threats, both of which are major mediums of attack for virus bots and hackers. Additionally, every single program we considered can automatically clean infected files without any required action from you, as well as store infected files in a quarantine so that they do not infect your entire system. Although every program is capable of performing all of these functions, there are a number of defining factors for you to consider in order to find the right software for your needs.

For example, only a few antivirus programs for Windows 8 are capable of creating a rescue disk that allows you to reboot a computer that has crashed because of an infection. Good antivirus software for Windows 8 automatically scans connected USB storage devices, such as flash drives, to help defend your computer from attacks. Some antivirus software even includes password managers, which help you create and store strong passwords. These capabilities define the top-rated antivirus programs on the market.

Based on our evaluations of the best antivirus software for Windows 8, we found that Bitdefender, Kaspersky and Norton achieved the best AV-Test results and have plenty of features to cover your security needs. All three of these programs scored 100 percent for the ability to protect against brand-new and old, established malware, which is impressive. Bitdefender and Kaspersky were also scored 100 percent in tests that measure system impact and false-positive detections, meaning they wont slow down your overall computer performance at all, and the programs wont mislabel safe files as potential threats. Overall, these three programs achieve great test results and have full feature sets to protect you against virus attacks.

Although the computer protections set in place by Microsoft may tempt you to avoid purchasing third-party antivirus software, you should know that these protections are best used as a starting point. Even though Microsoft continually improves upon its built-in security systems, with each installment of Windows built-in security getting better and better, third-party applications simply outperform Microsoft Security Essentials. These built-in protections are designed for users who either try to get by without addit

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