Free online virus scan and malware removal for Windows

Secure Your Device Today—No Credit Card Required.

ESET
Online Scanner

Free online virus scan and malware removal for Windows

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  • Free No credit card details required, no unexpected charges to worry about.
  • Effective malware removal Quick and easy way to remove viruses, Trojans, spyware, phishing and other internet threats.
  • Real-time antivirus protection Our security shields you from more than just viruses, protecting against malware, ransomware, spyware, phishing, and more.

    Available also for macOS.
  • Safe banking and browsing Bank, shop, and connect with ease. Our secured browser mode boosts your privacy and helps avoid phishing scams.
  • Smart home and smartphone protection Protect everything from PCs, laptops, and smartphones to smart TVs and IoT devices. Lock and track missing devices, secure access to your webcam, and monitor microphone activity for enhanced privacy and control.
  • Firewall, Wi-Fi and network shield Filter unwanted content, secure access to your network, and test your home router and smart devices for vulnerabilities.
  • Powerful scam and data protection Block scams and fake sites while keeping your data safe and secure with ESET’s advanced protection.

RECOMMENDED
 

ESET HOME
Security Premium

Real-time malware protection for your devices—free for 30 days
 

Try for free
  • Free trial No credit card details required, no unexpected charges to worry about.
  • Effective malware removal Quick and easy way to remove viruses, Trojans, spyware, phishing and other internet threats.
  • Real-time antivirus protection Our security shields you from more than just viruses, protecting against malware, ransomware, spyware, phishing, and more.

    Available also for macOS.
  • Safe banking and browsing Bank, shop, and connect with ease. Our secured browser mode boosts your privacy and helps avoid phishing scams.
  • Smart home and smartphone protection Protect everything from PCs, laptops, and smartphones to smart TVs and IoT devices. Lock and track missing devices, secure access to your webcam, and monitor microphone activity for enhanced privacy and control.
  • Firewall, Wi-Fi and network shield Filter unwanted content, secure access to your network, and test your home router and smart devices for vulnerabilities.
  • Powerful scam and data protection Block scams and fake sites while keeping your data safe and secure with ESET’s advanced protection.

2024 AV Comparatives Product of the Year.

ESET commended with AV-Test Top Product awards for best Windows antivirus software in the consumer category.

ADVANCED+ award for low impact of Consumer Security Software on System Performance.

ADVANCED+ award for Malware Protection.

Scan your Android device 
with ESET Mobile Security

  • Non-stop protection
  • Powerful antivirus – eliminates viruses and trojans
Click to get it on Google play

Free scan for Windows 
with ESET Online Scanner

  • One-time scan to remove malware and threats from your computer for FREE
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Full protection 
with ESET HOME Security Premium

  • Real-time, 24/7 continuous protection Multilayered antivirus technology protects against all types of online threats. Secures Windows, macOS and Android devices.
  • Detects and removes threats in background 
  • No commitment – try 30 days for free 
Try for free

ESET’s Online Scanner is engineered for speed and precision.

With just one click, launch a rapid, comprehensive scan that detects a wide range of threats. Whether you suspect an infection or simply want to perform a routine check, this tool delivers immediate, reliable results without slowing down your system.

Free Virus Scan and Removal Tool

Scanner vs. full protection

scanner vs full protection

Scanner vs. full protection: What do I need?

While ESET Online Scanner is ideal for conducting an immediate malware scan and removing viruses, it’s only one part of a broader security solution. For ongoing, real-time protection that includes a robust firewall, powerful scam and data protection, and continuous threat monitoring, explore our full protection trial. Think of the scanner as your first line of defense—and the full trial as the long-term safeguard for your digital life.

Comprehensive threat detection

Comprehensive threat detection

Comprehensive threat detection

ESET Online Scanner is designed to identify and remove malware, including:

  • Viruses: Harmful programs that can disrupt system operations.
  • Spyware: Unwanted software that secretly monitors your activity.
  • Ransomware: Malicious software that locks your data until a ransom is paid.
  • Other Malware: Including trojans, adware, and more—all targeted with cutting-edge detection technology.

User-friendly experience

User-friendly experience

User-friendly experience

Security should be simple. Streamlined download and installation-free launch helps you run a free virus removal scan within seconds. With a clean, intuitive interface and minimal impact on system performance, you can focus on what truly matters: using your devices with confidence and ease.

How to scan for malware and remove threats on a Windows PC

This is a one-time scan for a computer, not an in-browser file, URL or website checker.

  1. Download ESET Online Scanner
    Click the “Download” button to download ESET Online Scanner, a free malware scanner for Windows. No lengthy forms are required, just a quick, secure download.

  2. Launch ESET Online Scanner
    Once downloaded, launch ESET Online Scanner. The interface will guide you through each step of the malware scan.

  3. Start a system scan
    Start a full malware scan of your Windows PC. The virus cleaner checks for viruses and other threats, with a progress bar and clear indicators showing what is being scanned.

  4. Review any detected items and remove or quarantine them
    After the scan, review detected threats in a detailed report. Follow the prompts to quarantine or remove each malware item safely.

  5. Next steps after a one-time malware scan
    If the scan finds threats, consider the full protection trial for continuous, real-time malware protection, plus a firewall, powerful scam and data protection, and automatic updates.

Virus removal for all your devices

Cross-platform security

ESET’s protection isn’t limited by the type of operating system you use. Our comprehensive security solutions extend across:

Windows

Powerful protection for your desktop or laptop.

macOS

Tailored security to keep your Mac running smoothly.

Android & iOS

Mobile solutions that secure your smartphone and tablet. For device-specific information, visit our dedicated protection page for each platform.

"It keeps my system in a healthy state of functioning! Fast and reliable!"

Customer review via feedback form

A hidden gem in cybersecurity

TRTarcisious R., USA

"This is one of the most hidden gems in the antivirus industry—a must‑have."

Fast, accurate, and effective

AAndro, USA​

"One of the best on‑demand scanners! Fast, accurate, disinfects files... really great tool."

Trusted protection at no cost

MMehdi, USA​

"The fact that I could scan my troubled laptop with the latest updates from a well‑known antivirus for free…"

Deep scans that actually work

CChuck, USA​

"It was a deep scan and found issues. Glad there are products out there that help people keep their computers running great and virus‑free."

Frequently Asked Questions

Is ESET Online Scanner really free?

Yes. ESET Online Scanner is a free, one-time malware scanner for a Windows PC. Click “Run Your Scan Now” to download the tool, then scan your computer for viruses and other threats.

Do I have a virus? Common warning signs on a Windows PC

Slow performance, unexpected pop-ups, browser changes and unusual behavior can be warning signs of a virus or other malware. However, these symptoms can have other causes; by running a free malware scan with ESET Online Scanner you can check your Windows PC for threats.

How do I scan for malware on a Windows PC?

Click “Download” to download ESET Online Scanner. Launch the app, start a full system scan and review the report. You can then quarantine or remove detected malware.

Can ESET Online Scanner remove malware?

Yes. ESET Online Scanner scans your Windows PC and automatically removes detected threats. Removed items are moved to quarantine, where you can review and restore them if necessary. It is designed to run a one-time virus scan and remove malware.

What should I do if the scan finds a threat?

ESET Online Scanner automatically removes detected threats. After the scan, review the results to see what was cleaned, or open the quarantine to review and restore items if necessary. If you entered passwords on the affected PC, change them from a known-safe device. For ongoing real-time malware protection after clean-up, consider the ESET full protection trial.

Is a one-time scan enough to protect my PC?

A one-time scan can help find and remove threats that are already on your PC, but it does not provide ongoing real-time protection. For continuous monitoring and additional security features, use ESET full protection after completing the scan.

Can I use ESET Online Scanner on Mac, Android or iPhone?

No. ESET Online Scanner is a free virus scanner for Windows PCs. For Android, use ESET Mobile Security for Android. For Mac, we offer ESET Cyber Security as a part of our ESET Home Security offering.

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Free 30 day full digital protection and prevention

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ESET HOME Security Premium

Upgrade your free experience

FREE DOWNLOAD

Free 30 day full digital protection and prevention

No commitment or credit cards

Privacy and camera protection

24/7 threat detection

Safe banking