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New online threats emerge every day, putting our personal information, money and devices at risk. In its 2024 Internet Crime Report, the Federal Bureau of Investigation reports that 859,532 complaints of suspected internet crime—including ransomware, viruses and malware, data breaches, denials of service, and other forms of cyberattack—resulted in losses of over $16 billion—a 33% increase from 2023.
That’s 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’ll go through everything you need to know to run a scan effectively to keep your computers, phones and tablets in tip-top shape.
Whether you think you might have a virus on your computer or devices or just want to keep them running smoothly, it’s easy to do a virus scan.
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. 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.
Before doing a virus scan, it is useful to know the telltale signs of viral presence in your device. Is your device acting sluggish 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’ve noticed changes to your browser homepage or settings? Maybe you’re seeing unexpected pop-up windows, or experiencing crashes and other program errors. These are just some signs that your device may have a virus, but don’t get too worried yet because many of these issues can be resolved with a virus scan.
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.
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.
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 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’s comprehensive, multi-layered security capability before you commit to a subscription.
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.
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.
When selecting the right antivirus software, look beyond a basic virus scan and consider these key features:
The process of checking for viruses depends on the device type and its operating system. Generally, however, the virus scanner will display a “Scan” button to start the process of checking your system’s files and apps.
Here are more specific tips to help you scan your computers, phones and tablets:
If you use Windows 11, go into “Settings” and drill down to the “Privacy & Security > Windows Security > Virus & Threat Protection” tab, which will indicate if there are actions needed. This hands-off function is Microsoft’s own basic antivirus solution called Windows Defender. Built directly into the operating system and enabled by default, this solution provides a baseline of protection at no extra cost for casual Windows users. However, Microsoft is the first to admit that it lags behind specialized paid products in detecting the very latest zero-day threats.
Mac computers don’t have a built-in antivirus program, so you will have to download security software to do a virus scan. As mentioned, free antivirus applications are available online, but we recommend investing in trusted software that is proven to protect you from cyberthreats.
If you decide to invest in more robust antivirus software, running a scan is usually straightforward and intuitive. For more detailed instructions, we suggest searching the software’s help menu or going online and following their step-by-step instructions.
Smartphones and tablets are powerful devices that you likely use for nearly every online operation in your daily life from banking, emailing, messaging, connecting, and storing personal information. This opens your mobile device to getting infected through malicious apps, especially those downloaded from unofficial stores, phishing links sent via text or email, or by connecting to compromised wi-fi networks.
Regular virus scans with a mobile security software are crucial for protecting your devices. Be aware, however, that Android and IOS operating systems merit distinct solutions.
Antivirus products for Android devices abound due to this system’s open-source foundation. However, due to Apple’s strong security model, which includes app sandboxing, traditional viruses are rare on iPhones and iPads. However, these devices are not immune to all threats. You can still fall victim to phishing scams, insecure Wi-Fi networks, and malicious configuration profiles. Signs of a compromise can include unusual calendar events, frequent browser redirects, or unexpected pop-ups.
Apple devices, however, closed platform doesn’t easily accommodate third-party applications, especially unvetted ones. You will most likely find robust and verified antivirus scanning tools on Apple’s official app store.
Before you open any downloaded file or email attachment, it’s wise to check it for threats. To perform a targeted virus scan on a single file, simply right-click the file in Windows Explorer or macOS Finder and select the “Scan” option from the context menu to run the integrated virus checker on a suspicious item.
For an added layer of security, especially involving files from unknown sources, you can use a web-based file-checking service that scans for malware. These websites let you upload a file, which is then analyzed by multiple antivirus engines. Many security-conscious email clients also automatically scan incoming attachments, but a manual scan provides crucial, final-line defense before execution.
Once the scan is complete, the tool will display a report of any threats it found, including the name of the malware and the location of the infected file. If your antivirus software alerts you to a threat, don’t panic—it means the program is doing its job.
The first and most critical step is to follow the software’s instructions. It might direct you to quarantine the malicious file to isolate the file in a secure vault where it can no longer cause harm. You can then review the details of the threat provided by your virus scanner and choose to delete the file permanently, which is usually the safest option.
After the threat is handled, ensure your antivirus software and operating system are fully updated. Finally, run a new, full system virus scan to confirm that all traces of the infection have been eliminated. Regularly backing up your important data to an external drive or cloud service can also be a lifesaver in the event of a serious infection.
The most effective way to maintain your device’s security is to automate your defenses. A quality antivirus suite allows you to easily schedule a regular virus scan so you’re always protected without having to do it manually. A daily quick scan is a great habit for any user; it’s fast and checks the most vulnerable parts of your system. Most antivirus products regularly scan your computer or device in the background, so a manual scan is only needed if you notice something dubious, like crashes or excessive pop-ups. You can also set regular scans on your schedule, but a weekly full scan is ideal.
These days, it is essential to stay ahead of the wide variety of continuously evolving cyberthreats. Your first line of defense against these threats is to regularly conduct a virus scan. You can choose among the many free yet limited-time products or comprehensive, cloud-based solutions.
While many free versions legitimately perform their intended function, it’s critical to be cautious as these are more often baseline solutions while some are malware in disguise. They also lack the continuous, real-time protection necessary to block threats proactively.
A better option is to invest in verified, trustworthy, and all-in-one antivirus products like McAfee+ that, aside from its accurate virus scanning tool, also offers a firewall, a virtual private network, and identity protection. For complete peace of mind, upgrading to a paid solution like McAfee Total Protection is essential for proactively safeguarding your devices and data in real-time, 24/7.
The post How To Do A Virus Scan appeared first on McAfee Blog.
Does Windows 10 or 11 need antivirus software? Absolutely. Every computer needs protection against viruses and other malware.
The next question is this: Which antivirus should you use?
Windows 10 and 11 come with Microsoft Defender Antivirus, Microsoft’s free version of antivirus software. In the absence of any other antivirus software, it runs automatically. No installation required.
Now, here’s what that antivirus software does. Antivirus software protects your devices against malware and viruses through a combination of prevention, detection, and removal.
For years, people have installed antivirus software on their computers. Today, it can also protect your smartphones and tablets as well. In fact, we recommend installing it on those devices as well because they’re connected, just like a computer — and any device that connects to the internet is a potential target for malware and viruses.
In short, if it’s connected, it gets protected.
One important distinction about antivirus is its name, a name that first came into use decades ago when viruses first appeared on the scene. However, antivirus protects you from more than viruses. It protects against malware too — attacks like spyware, ransomware, adware, and more. So while we popularly call protection software “antivirus,” it protects against far more than just viruses. It protects against malware overall.
Now here’s where some confusion might come in. Some antivirus apps are standalone. They offer malware protection and that’s it. And that’s the case with Microsoft Defender Antivirus.
Other antivirus apps are part of comprehensive online protection software, which can include several additional far-reaching features that can protect your privacy and your identity.
So, if you’re only looking for good antivirus software, Microsoft Defender Antivirus can get the job done. However, protecting yourself online today calls for far more than antivirus.
In short, antivirus doesn’t cut it alone.
If you value your privacy and identity, you’ll want to consider something more than just antivirus software.
Malware and viruses pose only a portion of the threats we face online today. Shopping scams, data breaches, info gathering, identity theft, and phishing texts are a big part of the landscape today. And they can cost you plenty in terms of your time and money, not to mention the stress of dealing with them.
This makes a strong case for using comprehensive online protection. It covers those threats, and far more. Ours includes the protections mentioned above, plus dozens of features that further protect your devices, privacy, and identity. And yes, it includes antivirus too.
Comprehensive online protection software like ours gives you dozens of other features like identity theft coverage & restoration, personal data cleanup, security freezes, and an online protection score that shows you how safe you are, along with suggestions that can make you safer still.
It further protects you from scams. Our Text Scam Detector and web protection steer you clear of sketchy links in texts, emails, messages, and while you search. Others like our Social Media Privacy Manager keep you as private as you like with personalized recommendations in only a few clicks.
And that’s for starters. The list of protections with comprehensive online protection software like our McAfee+ plans runs long. That includes yet more features that help you secure your finances and identity, make you more private online, and keep your devices running strong.
While protecting your devices with antivirus is a great start, it’s only one part of staying safer online. Including the privacy and identity features that come with comprehensive online protection rounds out your protection overall. Particularly so in a time of data breaches, online scams, sketchy text messages, and the like.
In all, antivirus remains an important part of a safe and enjoyable time online, yet it doesn’t do the job alone.
The post Does Windows 10 or 11 Need Antivirus Software? appeared first on McAfee Blog.
Yes, giving your PC a good, old-fashioned cleaning can improve its performance. And it only takes minutes.
For the most part, PCs don’t slow down on their own over time. It’s the way we amass apps, files, and services that slows things down as your PC ages.
A few examples come to mind:
So, if your PC is feeling a bit sluggish — or if you’ve never cleaned your PC before — you have a few options to speed things up.
Start by backing up your files and photos
Any time you do some upkeep on your PC, back up your stuff. Given that so many of us store our files and photos in the cloud, this step is easy. You already have backups. Give those files a quick review and make sure what you need is backed up in the cloud.
You can also create a physical backup. An external drive can store those files as well, giving you extra redundancy. With your backup in hand, you can store it securely elsewhere in the event you need it.
Delete old apps
Drop over to your Windows search bar and type in “Storage.” That’ll take you to a screen that gives some solid insight into what your drive space looks like.
The great thing about this screen is that you can jump right in and get to work. For example, by clicking the “Apps & features” option, you get a list of all your apps stored on that drive. And with a click, you can delete the old ones you don’t want.
This does you well in a couple of ways. One is the obvious disk space you regain. The second is a bit more subtle. Older apps might go without an update, which can lead to security loopholes that hackers can exploit. Remove the old app, and you remove the loophole.
Remove temporary files
From the same menu, you can click and see how much space temporary files are taking up. You’ll likely see several categories of temporary files that you can delete. Take close note, though. While temporary, some of them still offer benefits. For example, you might want to keep “Windows update log files,” in the event you ever need to troubleshoot Windows.
Clear your browser cache and cookies
This one is a bit of a double-edged sword. Your cache and cookies make many web pages load faster. By storing images, preferences, and other info, cookies speed up load times. However, as months go by, cookie data can get bloated. If the disk space they use looks a little high to you, clean them out. You can do this in Windows by typing “Cookies” in your search bar. Additionally, you can clear it from your browser’s menu.
Important: This can remove any saved passwords stored in your browser. However, if you’re using a password manager, this isn’t a worry. The manager does the remembering for you.
Shut off startup apps that slow you down
Windows runs several apps on startup, some of which you certainly need, like antivirus apps or online protection software. Others might find themselves in that mix too, with apps that you don’t need running right away. These can slow down startup and eat up resources.
Head to your Windows search bar and type “Startup.” When the result pops up, select “Startup Apps.” From there, you’ll see a list of all your startup apps. You’ll also see a quick readout on each app that shows its impact on performance. Scroll through and click off the apps you don’t want to load at startup. Consider them carefully, though. If you’re uncertain of what a startup app does, do a web search on it before making any changes. Or just leave it alone.
Completely erase sensitive files
You’d think that deleting files in the recycle bin erases them entirely. Not so. It removes the “pointer” to those files. The data remains on the drive. It only gets removed when something new overwrites it. Which can take time.
To completely erase files with sensitive info, use a product like our own File Shredder. It permanently deletes files, and you find it in our McAfee+ plans. Although this doesn’t necessarily improve performance, it helps prevent identity theft.
Consider a deeper clean with a PC Optimizer
PC cleaning software, like McAfee PC Optimizer, simplifies the process of cleaning your PC. These programs are designed to detect and clear out unnecessary files, manage startup apps, and even clean the registry, often at the press of a button. It’s crucial, though, to choose reliable and safe PC cleaning software. Some can be excessive, doing more harm than good, or even carry malware. Reading reviews and understanding what each feature does is important before using PC cleaning software.
These cleaners usually come with customizable settings to suit your preferences. You can set automatic clean-ups at regular intervals, thus saving time, and freeing you from the hassle of remembering to run the cleanup.
A clean slate for you and your PC
Cleaning your PC is an essential part of maintaining its performance. While it might not drastically increase your PC’s speed, it contributes to overall efficiency, responsiveness, and longevity.
It’s important to approach PC cleaning carefully, deleting with discretion to avoid accidentally removing necessary files or applications. For those who aren’t comfortable doing it manually, reliable PC cleaning software like McAfee+ can simplify the process and save time.
Regular cleaning keeps your PC running smoothly, prevents potential threats, and ensures your personal and sensitive info is safe. So, if you haven’t started yet, it’s never too late to begin cleaning your PC and enjoy an optimized computing experience.
The post Does PC Cleaning Improve Performance? appeared first on McAfee Blog.
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