Big-name antivirus protection platforms like McAfee, Norton, Avast, AVG, Kaspersky, and more have long defended computers and mobile devices from potential viral threats. News that Avast has been selling user data makes it a great time to drop excess unnecessary potential snooping threats. Now Microsoft has built up its Windows Defender to a level that, many say, is enough to protect you without the need for these other services. Is this true? We lay it all out for you to decide.

What is Windows Defender?

Microsoft's Windows Defender was first available with Windows XP and has since evolved to what it is now, Microsoft Defender. This free service now comes built into Windows 10 as standard. While this started off as an inferior antivirus system, rated as dead last in tests by AV-Test back in 2013, it's changed. That same testing lab now ranks Windows Defender as one of the top services.

Microsoft has started taking endpoint security seriously, and as such the current Windows Defender is often found to outperform a lot of the third-party dedicated antivirus software competition when it comes to malware protection.

One of the stand-out features of Windows Defender is that it's really fast. Since this is built by Microsoft, into Microsoft systems, it can be optimized to perform far more efficiently than a third party option. As such, the system impact of Windows Defender is minimal, making it ideal for use on a tablet or laptop where battery life will be impacted far less.

As such, Windows Defender works away quietly in the background keeping your system safe. That means it's far less effort than the competition since it just works. You don't have to think about it or worry about it slowing you down or eating through your battery.

Unlike a lot of the free software out there, this won't try to get you to sign up to a paid service, continually pestering you or using ads. This is a refreshing offering when you consider this is free to use and is as, if not more, capable than the paid services.

The software can scan your system for known malware signatures, but it can also monitor your software for signs of an infection.

One of the stand-out features that Defender offers is its ability to make sure that absolutely no malware can take over its test systems. That's something that even some of the paid-for services fail at from time to time, including names like McAfee and Symantec, according to AV-comparatives.

Another area that the Defender did well in was zero-day attacks. This was previously a problem area for the service. Now, in recent testing, since the June update, it scored perfectly when it came to zero-day attacks. Say no more.

The fact that Windows Defender keeps itself updated and scans, all without you needing to do a thing – or even noticing it running – really makes this a very appealing option.

There are still instances where you might want to pay for an antivirus service. These are mainly due to the extras that some of these software packages bundle in for you. Many offer related services like VPNs, credit monitoring and protection, online password vaults, and more.

Ransomware is also an issue where specifically targeted software can help. Ransomware takes control of your system, and you're then told to pay money to the hacker, or your files will be either deleted or shared, whichever does you the most damage. For protection here, services like Malwarebytes and BitDefender are great options to keep you ransomware free – and that's the operative word as both those services are free.

Even with Windows Defender, and everything we've said so far, another layer of security can't hurt. Also, for malware, another option is essential.

Bitdefender is a great example as it not only covers the virus protection side of things, like Windows Defender, but it also tackles malware, ransomware, Trojans and rootkits. Essentially this is a do-it-all solution in one package. There's even a VPN thrown in, plus a password manager and even some banking tools. It's a whole lot of bang for your buck. Talking of, this will cost you as little as $20 for a year. There are lots of options with one, two, and three-year tiers, each with one, three, five, or ten devices supported. Check out the Bitdefender pricing options here.

Another option is VIPRE, which is ideal for those that want an extra layer of email security. This minimal solution offers an email quarantine for suspicious emails, like phishing schemes. A copy is sent to the quarantine folder where you can open them securely to check if they're legitimate without putting your system at risk. This starts at $45.99 for one device for a year and goes up to ten devices – check out all the pricing options here

Avast is also worth looking at since it offers excellent malware protection, ransomware defense, webcam monitoring, an auto gamer mode and works across lots of devices. This is really feature-rich and, as such, costs a bit more, starting at $48 for the year for a single device and going up to $72 per year for ten devices. Head over to Avast to see for yourself.

While near perfect at keeping you safe and protected from malware, there are a few instances where Microsoft still has work to do. Granted, these are largely superficial menu gripes, but they're worth mentioning.

When it comes to parental controls, you're limited to Microsoft browser use only. For other, non-Microsoft browsers like Chrome or Firefox, you'll have to install internet security features separately.

You don't get a VPN or integrated password manager like the paid-for options offer, and also the menus could be clearer for first time users.

There have also been complaints about Microsoft not updating its database often enough. But based on performance, this complaint seems to be unfounded since the results speak for themselves with the AV-Test lab results near perfect in the most recent tests.

If you are looking for some free alternatives to Windows Defender, we have you covered there as well.