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Avira can scan and remove existing threats as well as automatically detect and stop new ones. It protects you against ransomware, Trojans, spyware, and other kinds of malware. You can even choose which ones to actively watch out for, and disable others though it's not recommended like dialers, jokes, adware, etc.

Avira Free Security can also scan on a schedule, check files with any file extension or just the ones you manually choose from, disable the ability to stop active scans so that viruses can not stop the program from finding them , adjust the scanner's priority level, scan primary boot sectors, follow symbolic links to scan the actual files, search for rootkits before starting a scan, scan the Windows Registry, ignore files on network drives, automatically repair, rename, quarantine, delete, or ignore threats when they're found, use heuristic scanning, add files, folders, and processes to the ignore list, manage Windows Firewall settings, password protect the program's settings, block autorun on removable devices, and make the hosts file read-only.

This program offers more than just a very extensive antivirus application. It includes several other "layers" of security that will install automatically, and they might take a while to download since there are several.

However, you don't have to use them, and they won't bother you unless you open them. These separate modules include a VPN that encrypts all your traffic up through the first MB each month ; password manager to securely store complex passwords; and software updater that identifies outdated programs and gives you the download links to update them. In addition, Avira can speed up your computer and reduce boot time with its tune-up tool, help you find the best deals as you shop online, and warn you of malicious websites or software bundles before you download them with its SafeSearch add-on.

These extra features can be annoying if you're strictly after an antivirus solution, but again, you don't have to use them; just keep them tucked away where they are and you won't have to worry about them. Avira Free Security is intended to run on computers with Windows 7 and newer, including Windows 10 and Windows 8.

There's also Avira for macOS. If you want an antivirus program that's not only free but easy to use and not cluttered with lots of buttons and menus, you should definitely try the free version of Bitdefender Antivirus.

You not only get instant protection against viruses, worms, rootkits, spyware, and other threats, but also anti-phishing and anti-fraud protection to carry security with you when you're browsing the internet and entering passwords. It's remarkable how well Bitdefender runs despite its minimal design. Drag and drop folders and files directly into the program to run a scan against them, as well as start a full system scan or scan select objects from the right-click context menu—all of which can run at the same time.

Regardless of how they're started or how many scans are running simultaneously, a history of those scans are recorded for you on the primary window of the program as well as within the Events area of the settings. The obvious downside to a program that lacks many customization options is that there isn't much you can change about it.

That might be something you want but it might not be available—all you can do with this edition of Bitdefender is start and stop scans. Another downside to this software is how long it takes to become ready for you to use. The initial installer for Bitdefender is quite small but that's just what's used to then download the full program, which is hundreds of megabytes and could take a while if you have a slow internet connection. It's also unfortunate that you can't pause scans it just lets you stop them or set up file and folder exclusions before starting scans like some AV programs allow.

With Bitdefender, you can only mark files or websites as safe after they've been identified as potentially malicious. Ads asking you to purchase Bitdefender's professional programs and scheduled scans not being supported but they're not necessarily needed since Bitdefender is always checking for new threats are a few other not-so-greats.

Adaware Antivirus installs in minutes, is light on system resources, and can be used in one of two ways. The first is in regular mode where it checks for threats as they happen, but the other lets you use it in addition to your primary antivirus program. What this so-called "second line of defense" does is disables real-time protection but still lets you use Adaware Antivirus to manually scan for existing threats.

This feature is helpful if your primary AV software doesn't seem to find malware that you know is infecting your computer.

Whichever way you use it, Adaware Antivirus provides a defense against ransomware, spyware, viruses, and other forms of malicious software. You can find those threats through a quick, full, or custom scan. Daily, weekly, and monthly scheduled scans are supported, and you can even run a scan to just check certain things, like only rootkits or just tracking cookies and boot sector viruses, for example.

For real-time protection, you can toggle on or off the following options: scan archive files, scan email databases, deep scan that checks CHM files and executable files, smart scan that skips previously checked files, scan boot sectors, scan files as they move throughout the network, and skip scanning files that exceed a custom file size e. Adware Antivirus definitely has its advantages but because there's also a non-free version you can upgrade to, many additional options are not supported.

For example, parental controls and advanced network, web, and email protection are only available in Adaware Antivirus Pro. Avast is used by hundreds of millions of people and ranks high in nearly every "best list" of antivirus programs, and for good reason.

If you want a solid program that is sure to block new threats but is still easy enough to customize, you should consider using it. Avast Free Antivirus is similar to Avira; supplemental modules enhance the virus shield and provide additional services related to security and privacy. The antivirus portion has lots of options you can change but it's still easy enough for anyone to use since there are information blurbs next to most items so you're not left wondering what will happen if you enable them.

Plus, both definition and program updates are performed automatically a manual option is available, too , meaning you can install Avast and let it do its thing without worrying whether you're running the latest and greatest version. Avast is customizable and lets you make changes to everything from whether to make a sound when threats are detected and how long notifications should remain on the screen, to the kinds of file extensions that should be scanned.

Here are some more features supported in this program: scheduled scans, custom scans that can check only the memory, rootkits, auto-start programs, etc. Before Avast is installed, you have the option to include over a dozen different tools: file, behavior, web, and mail shields; software updater, browser cleaner, rescue disk, Wi-Fi inspector, security and SafePrice browser extensions; password manager; junk file cleaner; and Game Mode. Technically, if you only want the antimalware protection, you can install just the shields from the start of that list; the others are add-ons that aren't necessary but could be helpful at some point.

For example, the software updater is a nice tool that will not only check for and report outdated software but also install the newer versions for you even in bulk.

Wi-Fi Inspector scans the network for devices that could be vulnerable to attacks. For instance, it might identify that a computer is running a file sharing service that has been known to facilitate the spread of a certain kind of worm.

You can install these tools it takes less than five minutes and then disable or completely remove them later. Or, you can ignore them during setup and just install them later, or not at all. However, the password manager and Cleanup tools are only trial versions that will expire after a time-limited trial. There's also a firewall, file shredder, and sandbox feature that's unusable in this free version.

Avast Free Antivirus is compatible with Windows 10, 8, and 7. There's also a Mac and Android version. See our comparison between Avast and Bitdefender to see which one might be better for you. Resets browser home page and default search engine unless specifically deselected during installation. Panda Security's free antivirus program installs in minutes and has a minimal design like Bitdefender. However, even though it's not a CPU or memory hog, and doesn't appear to be customizable, all of its many options are tucked away in the program's settings.

From there, you can do things like set up both on-demand and automatic scans to check compressed files and scan for potentially unwanted programs. The automatic, permanent scanner includes some additional options, too, like behavioral and analysis scanning options, the ability to ask you before neutralizing a virus, and blocking files from running for so-many seconds until results on whether it's safe or harmful are obtained from the cloud.

Something entirely unique to Panda Free Antivirus is its security news and alerts sections that can show you critical, warning, and informational messages like when a popular vendor experiences a data breach that could affect your personal information. You can, however, turn those off if you want to. Complete a scan in just a few minutes if you only want to check for actively running threats, like browser cookies, processes, and things currently loaded in memory.

However, there's also, of course, an option for a full system scan or a custom scan. This software does a fantastic job at keeping the important buttons up front and hiding the additional options within menus so that you're not constantly bombarded with options or alerts.

However, the program will change your home page and the search provider in your web browser, unless you uncheck those options during the initial setup. AVG's free antivirus program is easy on the eyes and even easier to use. The scan button is right in the middle of the screen, turning features off is dead-simple, and all the advanced options are tucked away from view in the settings.

You can either install it and leave the settings alone to have regular protection, or go into the settings and make adjustments to nearly anything. Choose how to scan files— include only content that might include malware like executable data , only files that use a file extension considered potentially dangerous like EXE , or all files regardless of content type or file extension. Enable rootkit detection, hardcore mode, and CyberCapture technology, which helps detect threats in unrecognized files.

During setup, you have full control over which components should be enabled or disabled after AVG is installed. Windows 10, 8, and 7 are supported.

It also runs on Mac You can also run scans at any time, either quick scans, full scans, scans of commonly infected areas, and custom scans. A custom scan in COMODO Antivirus lets you choose which files or folders to scan and enables a host of other customizations like whether to decompress and scan archives, use cloud scanning, automatically delete threats, enable heuristics scanning, check for threats running in memory, skip files over a maximum size, run the scan with full system resources, delete PuPs, and more.

The basic view for the program's settings runs scans, unblock applications, updates the program, and runs software in a virtual mode, while the advanced view reports more details about those areas of the program and displays logs as well as toggles various things like HIPS and VirusScope. Learn how to enable it. No slowdowns or interruptions. Intelligent Antivirus Detect and block viruses, malware, spyware, ransomware and phishing.

We use smart analytics to stop threats before they affect you. CyberCapture Automatically send suspicious files for analysis in the cloud, and push a cure to all Avast users if it's a threat. Wi-Fi Inspector Automatically detect weaknesses in your home Wi-Fi and strangers piggybacking on your network. Smart Scan Find all those cracks which allow malware to slip in, from unsafe settings and passwords to suspicious add-ons and out-of-date software.

Layer upon layer of security. Ryan R. Eric S. Daryl C. Why is Avast one of the best free antivirus solutions? Avast Free Antivirus combines cutting-edge, AI-driven cybersecurity with a massive threat-detection network of over million users that lets us protect our entire community in real time against online threats whenever they appear. We have the right antivirus protection for all your needs.

How does Avast Free Antivirus protect against so many types of threats? Trusted by over million users around the world, Avast uses advanced machine learning techniques to protect against ransomware attacks and other emerging threats. Avast Free Antivirus detects, blocks, and removes all types of malware — viruses , adware , spyware , Trojans and more. How does Avast Free Antivirus affect performance? Avast Free Antivirus keeps your PC safe in real time without slowing it down.

Looking for a performance boost? How do I detect and remove viruses and other malware? Avast Free Antivirus detects and blocks all types of malware in real time to prevent them from infecting your computer. At the same time, it scans your PC to remove viruses and other malware automatically before they can do real damage.

Feeling up for a challenge? You can also try to remove viruses and malware the old fashioned way. All you need is a PC with Windows 10 , 8. Windows 10 compatible. Looks like you're using a Windows Would you like this app for Windows or Mac?

Click this file to start installing Avast. Almost done! Follow these 3 easy steps to complete your Avast installation Note : If your download did not start automatically, please click here. Step 1 Run the Avast installer Click the downloaded file at the top right corner of your screen.

Step 2 Confirm the installation Click "Yes" on the system dialog window to approve the start of your Avast installation. Step 3 Follow setup instructions Click the button in the installer window to begin installation.

Need help? Please call Follow these steps to complete your Avast installation: Note : If your download did not start automatically, please click here.

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