{"id":98494,"date":"2025-05-19T03:23:40","date_gmt":"2025-05-19T10:23:40","guid":{"rendered":"\/blogs\/?p=98494"},"modified":"2025-12-17T14:02:39","modified_gmt":"2025-12-17T22:02:39","slug":"how-to-do-a-virus-scan","status":"publish","type":"post","link":"https:\/\/www.mcafee.com\/blogs\/privacy-identity-protection\/how-to-do-a-virus-scan\/","title":{"rendered":"How to Scan for Viruses and Confirm Your Device Is Safe"},"content":{"rendered":"

New online threats emerge every day, putting our personal information, money and devices at risk. In its 2024 Internet Crime Report<\/a>, the Federal Bureau of Investigation reports that 859,532 complaints of suspected internet crime\u2014including ransomware, viruses and malware, data breaches, denials of service, and other forms of cyberattack\u2014resulted in losses of over $16 billion\u2014a 33% increase from 2023.<\/p>\n

That\u2019s why it is essential to stay ahead of these threats. One way to combat these is by conducting virus scans using proven software tools that constantly monitor and check your devices while safeguarding your sensitive information. In this article, we\u2019ll go through everything you need to know to run a scan effectively<\/a> to keep your computers, phones and tablets in tip-top shape<\/a>.<\/p>\n

What does a virus scan do?<\/h2>\n

Whether you think you might have a virus on your computer or devices or just want to keep them running smoothly<\/a>, it\u2019s easy to do a virus scan.<\/p>\n

Each antivirus program works a little differently, but in general the software will look for known malware with specific characteristics, as well as their variants that have a similar code base<\/a>. Some antivirus software even checks for suspicious behavior. If the software comes across a dangerous program or piece of code, the antivirus software removes it. In some cases, a dangerous program can be replaced with a clean one from the manufacturer.<\/p>\n

Unmistakeable signs of a virus in your device<\/h2>\n

Before doing a virus scan, it is useful to know the telltale signs of viral presence in your device. Is your device acting sluggish<\/a> or having a hard time booting up? Have you noticed missing files or a lack of storage space? Have you noticed emails or messages sent from your account that you did not write? Perhaps you\u2019ve noticed changes to your browser homepage or settings? Maybe you\u2019re seeing unexpected pop-up windows<\/a>, or experiencing crashes and other program errors. These are just some signs that your device may have a virus, but don\u2019t get too worried yet because many of these issues can be resolved with a virus scan.<\/p>\n

Are free virus scanner tools safe and sufficient?<\/h2>\n

Free virus scanner tools, both in web-based and downloadable formats, offer a convenient way to perform a one-time check for malware. They are most useful when you need a second opinion or are asking yourself, “do I have a virus?” after noticing something suspect.<\/p>\n

However, it’s critical to be cautious. For one, cybercriminals often create fake “free” virus checker tools that are actually malware in disguise. If you opt for free scanning tools, it is best to lean on highly reputable cybersecurity brands. On your app store or browser, navigate to a proven online scanning tool with good reviews or a website whose URL starts with “https” to confirm you are in a secure location.<\/p>\n

Secondly, free tools are frequently quite basic and perform only the minimum required service. If you choose to go this path, look for free trial versions<\/a> that offer access to the full suite of premium features, including real-time protection, a firewall, and a VPN. This will give you a glimpse of a solution\u2019s comprehensive, multi-layered security capability before you commit to a subscription.<\/p>\n

Cloud-based virus solutions<\/h2>\n

If safeguarding all your computers and mobile devices individually sounds overwhelming, you can opt for comprehensive security products that protect computers, smartphones and tablets from a central, cloud-based hub, making virus prevention a breeze. Many of these modern antivirus solutions are powered by both local and cloud-based technologies to reduce the strain on your computer’s resources.<\/p>\n

Online virus scan: A step-by-step guide<\/h2>\n

This guide will walk you through the simple steps to safely scan your computer using reliable online tools, helping you detect potential threats, and protect your personal data.<\/p>\n

1. Choose a trusted provider<\/h3>\n

When selecting the right antivirus software, look beyond a basic virus scan and consider these key features:<\/p>\n