Windows Defender Antivirus Reviews 2018

Aviva Zacks
Aviva ZacksCybersecurity Expert and Writer
Our Verdict:

Think a default installed program has to be low in quality and features? Windows Defender proves otherwise. This often-overlooked tool actually includes quite an array of antivirus and internet security features. In fact, for many users, it may be all they need to keep their computers running clean.

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Detailed Expert Review

Aviva Zacks
Aviva ZacksWriter

As Windows’ built-in anti-malware and firewall tool, Windows Defender may not be the first thing that comes to mind when you’re looking for premium-grade protection against threats like spyware and Trojans. Does this built-in tool have enough functionality to protect against these, or should you look elsewhere? Here’s what I found out during my evaluation.

Security

Windows Defender Security Center provides basic protection against viruses, Trojans, ransomware, and other malware forms. It’s installed with Windows by default, so even if you don’t wish to install a third-party solution, your system has at least some level of protection against these threats. Additionally, the program automatically detects other antivirus systems you may have installed. This makes it easy to remove any old scanners if you want to entrust Windows Defender with being the sole protection against online threats.

Strong Endorsement from Testing Labs

After evaluating Windows Defender over three days, I was pleasantly surprised by the wealth of features in this free default tool. I’m also not the only one that thinks highly of it: independent laboratory AV-Test has frequently ranked Defender within their top ten solutions for virus detection, and the program achieved a perfect score for malware removal (my test samples were all detected).

The one caveat: the tool doesn’t detect and remove many so-called “low risk” malware vectors, such as adware, because most users can live with it. While adware can bloat your system with annoying popups, the experience is overall far less irritating than having your system hijacked (or your identity stolen) by a piece of ransomware allowed to run loose.

Speaking of ransomware, there’s also a nice integration with Microsoft’s cloud storage platform, OneDrive, to protect against this ever-growing threat. Users are able to copy critical personal folders through Defender into OneDrive so that they can still access them in the event that they’re locked down by a virus demanding a ransom payment.

The protection that Microsoft offers includes Cloud protection—so users receive protection against both known vulnerabilities, for which signatures have been created, as well as emerging threats. Nothing to argue with here.

Features

In addition to virus and threat protection, Windows Defender also includes Windows Defender Firewall with Advanced Security. This tool isn’t particularly rookie-friendly but does allow you to create and administer comprehensive firewall rules for both inbound and outbound protections. Firewalls are vital for protecting the security of your local network, so I was impressed that Microsoft’s tool was so comprehensive.

There’s also phishing protection which automatically integrates, by default, with Microsoft’s own browsers: Microsoft Edge and Internet Explorer. I tested out some known phishing URLs from phishtank.com and they were all successfully flagged by the system—unfortunately, I couldn’t say the same for Google Chrome, which let me access the same URLs without flagging them as suspicious (and yes, I had the “protect you from dangerous sites” option enabled). For those that want to add Defender’s protection to Chrome, the Windows Defender Browser Protection plugin needs to be installed from the Chrome Web Store.

Feature-Rich Parental Control Options

What really impressed me is the fact that Defender includes a comprehensive parental control filter. These settings are configured online in the cloud and family members’ Windows accounts can be added so that their access can be monitored and controlled by an admin in the family. In fact, Microsoft even allows you to create special Windows accounts for your children, and the protection settings will automatically be applied whenever they log in and browse the net using Microsoft Edge (you’ll want to lock down access to other browsers if you have them installed). In addition to whitelisting and blacklisting functionalities, administrators are able to configure time limits and pull-down reports about browsing activity.

Ease of Use

Windows Defender comes pre-installed on every Windows PC and, if no other antiviruses are installed, is automatically enabled. Naturally, this means that there’s no installation required. The program offers protection right out of the box. Settings are administered in two areas: the Windows Defender Security Center, which includes virus scanning, parental control, basic firewall, and system health dialogs, and Windows Defender Firewall with Advanced Security. The latter is better reserved for expert use but the Security Center itself is incredibly fast and straightforward to use.

Support

Windows Defender is a factory-installed component, so Microsoft will resolve any issue you may encounter. The online Help and FAQ Center contains guides on how to set up scans and resolve common difficulties. If that fails to resolve the issue, users can “talk” to the Microsoft Virtual Agent (which was able to understand my question on the first try, and also directed me to the exact support resource I required to configure my scan). Finally, users have access to Microsoft’s global support network, which includes both telephone support and a ticket-based system. It’s fair to say that if you encounter a problem with Windows Defender, Microsoft has more than enough resources to get you unstuck.

Pricing

Windows Defender and all its components are included in the Windows operating system. The tool provides some seriously impressive functionality and I appreciated the fact that Microsoft does not attempt to upsell within the tool.

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Bottom Line

Aviva Zacks
Aviva ZacksWriter

For most users there’s nothing wrong with relying on Windows Defender as an antivirus and internet security suite. It’s easy to use, catches the majority of viruses and malware out there, and users have access to one of the best support networks in the world should they need help.

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