ESET vs Microsoft Defender

Deciding on the right antivirus can feel like navigating a maze, especially when ESET and Microsoft Defender both offer strong games. Microsoft Defender, the built-in guardian of Windows devices, is a household name. Conversely, ESET, hailing from Slovakia, safeguards over 110 million PCs globally.

In this comprehensive showdown, I’ll dissect each provider’s features, malware detection capabilities, pricing, usability, and customer support to help you make an informed choice.

Quick verdict: ESET takes the trophy if you’re here for the TL;DR. It excels in malware detection and offers a user-friendly interface that appeals to newbies and pros. Plus, ESET throws in extra perks like webcam controls and password management.

Summary: ESET vs Microsoft Defender


  • Data encryption tools
  • File shredder
  • Privacy protection

Microsoft Defender

  • Completely free
  • Included with Windows OS
  • Parental control options
No valueESETMicrosoft Defender
Websiteeset.comMicrosoft Defender
Antivirus and Antispyware
Password ManagerWindows Hello!
Parental controls
Ransomware protection
Banking and Payment Protection
Network Attack Protection
Secure data encryption
Web protection/anti phishing
File Shredder
PC Cloud Backup
Automatically update apps
Performance Optimization
Best deal (per month)$4.99
Save 25% with a 2 year subscription
FREE download

BEST DEAL FOR ESET:Save 25% on a 2-year plan and get premium security features for all devices.

BEST DEAL FOR MICROSOFT DEFENDER:Pay absolutely nothing for Microsoft Defender when you purchase a Windows PC.



In 2008, 2009, and 2010 ESET was recognized as the most successful business in Slovakia. The cybersecurity company was founded in what was then Czechoslovakia in 1993.

At the time of writing, the company has a revenue of 504 million EUR and has a team of 1684 employees.

Microsoft Defender

Microsoft Defender is deployed to Windows operating systems as part of the Windows Security portfolio and was first available with Windows XP as a free downloadable antispyware tool in 2004.

Windows Defender Antivirus and Windows Defender are former names for Microsoft Defender, which were deployed in pre-Windows 10 operating systems. What started as a spyware detection tool has evolved into software that now detects viruses, malware, and more sophisticated threats.

ESET vs Microsoft Defender pricing

As we move on to pricing, it is worth noting that Microsoft Defender cannot technically compete in this category as its plan comes bundled with Windows 10 and Windows 11 free.

No valueMicrosoft Defender
WebsiteMicrosoft Defender
One year priceFree
Renewal priceN/A
Best deal (per month)Free
FREE download

Microsoft Defender fits into the broader Windows Security offering, including ransomware protection, parental controls, Windows Hello password management, and more.

To obtain Microsoft Defender, you’ll need to purchase a PC or laptop running the Windows operating system. If you’re running an earlier version of Windows, such as Windows 7, you’ll find Microsoft Windows Defender in your Start menu, and if it’s XP you’ll need to download Windows Defender XP from the web.

Although this comparison is aimed at consumers rather than businesses, a worthwhile mention surrounds Microsoft Defender for Endpoint, aimed at enterprises running multi-device networks. This version of Defender is aimed at companies where attacks could be more sophisticated and include on-hand support from a Microsoft certified engineer when things may need technical intervention.

ESET offers one of the widest internet security for home levels I’ve seen among AV providers, with six plans to choose from depending on your requirements.  While ESET doesn’t offer discounts for new users signing up for one-year memberships, they do offer deals on two-year plans, which I’ve detailed below.

ESET NOD32 Antivirus

The first plan from ESET is ESET NOD32 Antivirus which costs $39.99 for one-year signups. If you opt for two years, this is discounted to $59.99, saving 24%. With this level of protection, you’ll get antivirus and antispyware, a ransomware shield, and a Host-Based Intrusion Prevention System.

It also offers several advanced tools (registry and memory scanning) and script-based attack protection. You can install the protection on a single device at the prices above for Windows and macOS (although the features aren’t as vast for Mac).

ESET Internet Security

Next up is ESET Internet Security which is $49.99 for one-year subscribers or 74.99 for two years. This level of security includes all the features of the previous plan for Windows, macOS, and Android, plus privacy and banking protection and network and smart devices protection. You can install the software on a single device or add extra devices for an extra fee.

ESET Smart Security Premium

The next level of protection is for users that are serious about their security. ESET Smart Security Premium is for Windows, macOS, and Android devices, costing $59.99 annually or $89.99 for two years on a single device. You’ll get all the benefits of the other packages, plus sensitive data encryption, password management, and protection against new threats.

ESET Mobile Security for Android

At $14.99 per year or $22.49 for two years on a single Android device, ESET Mobile Security for Android protects your smartphone and tablet with real-time antivirus scanning, payment protection, automatic definition updates, proactive anti-theft, and more.

ESET Cyber Security

For $39.99 yearly or $59.99 for 24 months on a single Mac device ESET

Cyber Security includes antivirus and ransomware protection.

ESET Cyber Security Pro

Finally, ESET Cyber Security Pro includes the features from the other Cyber security plan for Macs on a single device for $49.99 annually or two years for $74.99. It also includes network protection and tools to prevent hackers from accessing your system. Additionally, it has a few tools available for Windows and Android protection.

ESET offers a 30-day money-back guarantee on all of its plans, allowing you to try all the software features before committing to a long-term subscription.

Effectiveness against malware

While Microsoft Defender and ESET claim to protect your computer from sophisticated malware threats, I carried out my own lab tests to see how they’d perform against malware test samples.

I acquired three live virus samples consisting of trojans and adware in compressed formats and four samples from the EICAR (The European Institute for Computer Antivirus Research), which included an executable, a txt file, and two compressed files.

My tests consisted of a real-time detection test that should pick up the threats when they are downloaded from the web and on-demand scans to scan my entire system.

Real-time test

No valueESETMicrosoft Defender
Websiteeset.comMicrosoft Defender
Eicar Sample 1BlockedBlocked
Eicar Sample 2BlockedBlocked
Eicar Sample 3BlockedBlocked
Eicar Sample 4BlockedBlocked
Live Sample 1 (Adware)BlockedBlocked
Live Sample 2 (Trojan)BlockedBlocked
Live Sample 3 (Trojan)BlockedBlocked
Best deal (per month)$4.99
Save 25% with a 2 year subscription
FREE download

When I downloaded the files, ESET Smart Security Premium detected and blocked all threats, and Microsoft Defender returned the same result without any issues.

On-demand scan results (quick)

Next, I disabled real-time scanning and downloaded the file again. I performed a quick scan with Microsoft Defender only (as ESET doesn’t have a quick scan option) which didn’t find any of the threats. The scan was only surface level and didn’t go into enough depth.

On-demand scan results (full)

My final malware tests were full scans of my system. ESET detected every malware sample (EICAR and live) and blocked the threats as it did during the real-time test. ESET Virus effectiveness

In contrast, Microsoft Defender blocked only one of the EICAR samples and allowed all live samples – which doesn’t make sense considering it blocked every threat in real-time.

I wanted to back up my research with the findings of some of the most extensive virus testing labs globally, AV-Comparatives, and AV-Test, to understand how the providers performed on a broader scale.

AV-Comparatives perform several different types of tests every year to benchmark antivirus providers, but there are only two I’m interested in at this stage, Malware Protection Test and the Real World Protection Test.

The Real World Protection Test measures how antivirus products stand up against threats on the internet and malicious websites.

In contrast, the Malware Protection Test looks at how well antivirus products perform when looking for offline malware threats that already exist on a system or threats introduced via a USB drive and checks whether they quarantine them.


First up, I checked out the Real-world Protection test produced between July and October 2021. Of 743 test malware files, Microsoft Defender blocked 741 threats and achieved a 99.7% protection score. Microsoft Defender didn’t produce any false positives.

Meanwhile, ESET Smart security premium blocked 735 of the threats achieving a protection score of 98.9%. It didn’t produce any false positives, which aligns with Microsoft Defender.

AV-Test Results

AV-Test’s Malware report for both providers showed Microsoft Defender achieved 100% detection rates for protection against 0-day malware attacks, including web and e-mail threats (Real-World Testing) in January and February 2022. It also showed that Microsoft defender scored 100% for the same period to detect widespread malware discovered in the last 4 weeks.

The latest AV-Test report for ESET is from November to December 2021, where it achieved a 100% protection score for protection against 0-day malware attacks, inclusive of web and e-mail threats (Real-World Test). It also scored full marks for the detection of widespread and prevalent malware discovered in the last 4 weeks for the same period.

Impact on PC performance

While protecting your system from malware threats is beneficial, it’s not useful when the software grinds your system to a halt. To see how each provider affected the performance of my system, I monitored the usage of quick scans, full scans, and control scans (background scanning) using Windows Performance Manager.

No valueESETMicrosoft Defender
Websiteeset.comMicrosoft Defender
Full Scan Time (minutes)68186
Number of scanned objects930,000302823
Full Scan CPU Utilization %68100
Full Scan Memory Utilization %70N/A
Full Scan Disk Utilization (seconds)510300
Control CPU Utliization % (no scan)3264
Control Memory Utilization % (no scan)63N/A
Control Disk Utilization (seconds) (no scan)173
Quick Scan Time (seconds)N/A19
Quick Scan CPU Utilization %N/A64
Quick Scan Memory Utilization %N/AN/A
Quick Scan Disk Utilization %N/A88
Best deal (per month)$4.99
Save 25% with a 2 year subscription
FREE download

ESET Smart security premium finished a full scan in just over an hour, scanning a total of 930,000 of my files. ESET doesn’t have a quick scan option, so I was unable to record this data.

Microsoft Defender completed the full scan in a lengthier 186 minutes and scanned a lot fewer files with 302823 in total. It finished a quick scan in 19 seconds which is likely why it missed all of the samples during the quick malware test.

As shown in my performance results, ESET is slightly more resource-heavy during control and full scans versus Microsoft Defender – though I didn’t notice any impact on my system while using it.

To back up my findings, I referred back to the test labs as I did in my malware testing to understand the results produced by AV-Test and AV-Comparatives.

AV-Comparatives takes the following into account during its performance tests:

  • Downloading files
  • Browsing websites
  • File Copying: first and subsequent run
  • Installing and uninstalling applications
  • Archiving and unarchiving
  • Launching applications: first and subsequent run

Microsoft Defender performed okay in AV-Comparatives’ report from October 2021, showing it only slipped up in the file copying category for first-run tests and unarchiving/archiving.

In contrast, ESET came out best, only falling short on first runs in the file copying category.

AV-Test scores providers out of 6.0 (equivalent to excellent), of which Microsoft Defender and ESET achieved full marks.

ESET vs Microsoft Defender Features

ESET and Microsoft Defender both have a great range of features, with some noteworthy tools listed below.

ESET Premium Internet Security

  • Multi-platform protection
  • Safeguard your privacy
  • Enjoy premium features
  • Banking & Payment protection
  • Legendary antivirus technology
  • Privacy protection
  • Webcam Protection
  • Anti-theft
  • Minimal power usage
  • Install and forget

Microsoft Defender

  • Antivirus and antimalware
  • Ransomware Protection
  • OneDrive Cloud Backup 5 GB
  • Windows Hello
  • Microsoft Family Safety
  • App and browser control

I’ve broken down some of these features below to help you understand what it means for you as the consumer:

ESET Premium Internet Security

  • Multi-platform protection: ESET protects all your devices, including Windows, macOS, and Android, so you have peace of mind that you’re protected wherever you go.
  • Banking & Payment protection: ESET includes a secure browser that keeps your sensitive transactions safe and private from the outside world. Use the browser when you want to access online banking without fear of hackers snooping on your financial details.
  • Webcam protection: Shield your webcam from attackers looking to hijack your cam for blackmailing purposes. Use webcam protection from ESET and lockdown your camera, so it’s only available when you need access to it.

Microsoft Defender

With the exception of ransomware protection, the other features described below can be used alongside a third-party antivirus installation.

  • Ransomware protection: Stop hackers in their tracks that attempt to lock down your file system in return for a ransom payment. Microsoft Defender scans for sophisticated threats to detect and block ransomware attempts.
  • Windows Hello!: Microsoft Defender’s answer to password management lets you use biometrics such as face and fingerprint recognition, so you’ll never have to remember a password again for use on your Windows devices.
  • OneDrive Cloud Backup: Never lose access to your important files thanks to Microsoft’s cloud backup solution. Automatically back up your files up to 5 GB, and upgrade for a fee if you need more storage.

Sign up & Installation

There’s zero need to sign up for Microsoft Defender as it’s already installed and ready to go on Windows 10 and 11.

ESET’s payment page is simple and lets you choose the product, the number of devices, and how many years you want the plan for. If you don’t want to pay in full, monthly plans are available.

Download and install completed in under 5 minutes, and I ran my first scan in less than 10 minutes of payment. I also checked out their cancellation process by raising a support ticket by email, and I got a prompt response with the payment being processed within 48 hours of my inquiry.

How easy is the interface to use?

Having a clean and easy-to-use application is vital for those new to antivirus software, but it’s also important not to forget about expert users who want additional settings. I’ve taken both software solutions for a spin to see what’s on offer.

First off, Microsoft Defender uses a clean but basic layout which is available from the main Windows 10 settings under Windows Security. When you open it, you’ll see everything at a glance, which shows everything in green when things are running well, amber when there are actions for your attention, and red when there’s a big problem – fortunately, my system was green all the way! Windows Security interface

The main dashboard has options like virus and threat protection, which shows your previous scans and allows you to run full or quick scans. Firewall and network protection let you enable/disable your firewall, family options let you adjust your parental control settings, and app and browser control helps to block access to unknown or dangerous apps. Overall, it’s easy to use but lacks support for advanced users.

ESET Smart Security Premium is totally different and feels much more comprehensive. The dashboard has options for all of the most popular tools at the click of a button, and the way it is designed draws your attention to the highest priority items. ESET Antivirus

Your license information, the last time your computer was updated, and a variety of useful resources are all right in front of you on your dashboard.

Customer Support

When it comes to customer support, Microsoft Defender is a bit of a mixed bag. Your go-to resource is the Microsoft Community Forums, which, let’s be honest, isn’t ideal for urgent issues. However, if you’re a Microsoft Defender for Endpoint customer, you get the VIP treatment with 24/7 access to Microsoft-certified engineers.

ESET’s customer support is more robust and versatile. Basic chat support comes standard with all plans, but if you need in-depth help, premium advisers are available at $20 per hour. For less time-sensitive issues, ESET offers email support, a comprehensive knowledge base, and user guides that walk you through the software’s functionalities.

So, whether you’re facing a critical issue or just need some quick guidance, ESET has got you covered.


If you haven’t already guessed and missed the spoiler at the start of this article, ESET wins the comparison against Microsoft Defender. ESET has a wider range of features such as a password manager, webcam security, and a safe browser to shield your sensitive transactions such as online banking. It also blocked every malware threat it came up against, offers a broader range of customer support, and provides a generous 30-day money-back guarantee with all plans.

Its interface is easy enough for beginners to use but has advanced features for expert users, and lastly, it makes getting started as a user simpler than ever.

ESET vs Microsoft Defender FAQs

Does ESET have a VPN?

No, at the time of writing, none of ESET’s plans currently include a VPN. However, you could use a VPN such as Surfshark alongside ESET to shield your online activities from hackers and your ISP.

Does Microsoft Defender protect against ransomware?

Yes, Microsoft Defender combines with Windows Security to protect your device from ransomware. The setting isn’t enabled by default, though, so you’ll need to turn this on for it to take effect.

Can I use ESET with Microsoft Defender?

Yes, Microsoft Defender is one of the only antivirus providers that lets you run third-party antivirus apps in unison. When you enable ESET on Windows 10 or 11, Microsoft Defender will disable some of its features to ensure no conflicts take place.