Free online virus scan for your Windows PC
Online Virus Scan finds and removes viruses, malware and spyware on your Windows PC.
Keep all your devices safe with real-time online protection and frequent virus scans. Learn more!
Click “Run now” to download free Online Scanner
Scan your computer for free. Our online scanner is safe to run and use
Run the .exe file to scan for viruses
Please uninstall other antivirus programs first — our scanner will keep you protected during the scan.
Online Scanner removes any found viruses
The free virus scanner is easy and safe to use. Running the scan doesn’t leave anything on your computer
From one-time virus scan to real-time online protection
A one-time online scan is a great first step for making sure there are no viruses on your Windows PC. Run the scan and remove dangerous malware that might be already lurking on your device. Keep your devices safe at all times with real-time protection. Here’s how F‑Secure Internet Security protects you online.
Download files and apps without worry
Our award-winning antivirus scans downloaded files in real time, so you never again have to deal with viruses. It also removes existing infections.Keep your money safe online
Banking Protection secures your connection and checks every website that you enter, so you can enjoy safe online shopping and banking.Avoid harmful websites
Explore the internet freely without worrying about risky or dangerous websites. Browsing Protection blocks scam sites and keeps your data safe.Stay safe against online scams
Scam Protection keeps your personal information and money safe from scammers. Shop safely from trustworthy retailers and get notified of the untrusted online stores. Block SMS scams automatically with the latest AI technologies and avoid malicious websites and links before you land on them. Get alerted about unsafe Wi-Fi networks on the go. Decrease your exposure to potential scams by blocking ads and see less cookie consent prompts with the Cookie blocker.Get virus protection for all devices
Internet Security protects you against viruses, ransomware, spyware, infected email attachments and other cyber threats — whether you are using a Windows PC, Mac, Android or iOS device.
How to scan my device for viruses and remove malware?
You can use our free online scanner whenever you want to remove viruses from your computer. It works even if you have antivirus software installed already. F‑Secure free online scanner is an easy way to detect and remove viruses from your computer. However, a free virus scan can only remove existing viruses, it doesn’t protect your device from new ones.
Make sure that the free online virus scan you want to use is from a respected cyber security company. Before running any online virus scan, check carefully that the website address is trusted and reliable.
Check your Windows PC with F‑Secure’s safe and free online virus scan. All you need to do is to install the online scanner and run it to detect malware on your device. The free virus scanner works only on computers running on the Windows operating system. However, you can try F‑Secure Total for free on your Mac computer and mobile devices using the iOS and Android operating systems. In addition to comprehensive protection for your devices, F‑Secure Total comes with a VPN and tools for managing your online identity.
An antivirus scanner is the most important tool for virus removal. You install the antivirus on your device and it starts to monitor incoming internet traffic and the sites you visit. If your virus protection detects anything suspicious, it alerts you and catches malicious software. With reliable antivirus software, you can also run a virus scan to check your whole device or individual files for malware threats.
Malicious software, or malware comes in different forms. Computer viruses are only one type of malware. The common goal of viruses and other online threats is to infect your device, such as your computer. After the malware infects your computer, it may seek to corrupt and destroy files, steal valuable information and money, or spread further into other devices. These malicious threats are used by online criminals and hackers for financial gain, espionage or plain mischief.
An antivirus works as a digital guardian for your computer, constantly monitoring for potential threats. It performs regular scans to detect and eliminate malicious software that could harm your system. When you initiate a free virus scan, the antivirus thoroughly examines your files, programs, and system processes, looking for known patterns of malicious code. If threats are detected, the antivirus offers free virus removal options to clean your device.
Modern antivirus solutions often include a comprehensive malware scanner that protects against various types of threats, including viruses, trojans and spyware. The best virus scanners will use regularly updated databases of known malware signatures and advanced heuristic techniques to identify both existing and emerging threats.
To ensure optimal protection, we recommend running regular virus scans and keeping your antivirus software updated. While free tools can be helpful, premium solutions like F‑Secure Total offer real-time protection and more frequent updates to safeguard against the latest cyber threats.
F‑Secure’s free online virus scanner works on your Windows PC. However, there are viruses and other malware that can infect your mobile devices too. Use reliable malware protection to remove viruses and protect your smartphone or tablet from future viruses. F‑Secure Total’s antivirus scan protects your mobile devices running on the iOS or Android operating system.
Although many free malware removal tools can catch viruses lurking on your computer, they do not provide active monitoring and real-time protection that keeps your device safe against malicious programs at all times. Unlike free malware removal, a premium antivirus with frequent updates catches the most recent cyber threats. F‑Secure Total’s virus scanner stays up-to-speed with new harmful software that free tools might miss. You can clean viruses from your devices with a quick scan or a more comprehensive virus scanner.
F-Secure Online Scanner supports Windows 10 (version 21H2 or newer) on x64 systems, and Windows 11 (version 24H2 or newer) on ARM64 systems.