Healthy Tech: How to Check for Malware on Your PC and Laptop

We have all had that moment of suspicion. You turn on your computer, and the mouse cursor lags across the screen. Or perhaps a strange box pops up for half a second and then vanishes. Or the fans start spinning like a jet engine even though you are only reading the news. Your first thought is usually: 'I think I’ve been hacked.' It’s a stressful, invasive feeling, but before you panic, remember that most digital 'germs' are easy to find if you have the right equipment.

If you are asking how to check for malware on pc systems, you are doing the digital equivalent of a blood test. You’re looking for things that shouldn't be there. In 2026, malware doesn't always break your computer; it often just 'hides' and watches you. Today, we’ll walk through the 3-Step Health Check that security experts use to sweep a laptop clean. No tech degree required—just 15 minutes of your afternoon for total internet security.

Step 1: The 'Quick Sweep' with Windows Defender

If you have Windows 10 or 11, you already have a world-class scanner built-in. Windows Defender has improved significantly in 2026 and should be your first line of defense.

The Correct Scan:

Click the Start button and type 'Security.' Open Windows Security.
Click Virus & threat protection.
Click Scan options (don't just click Quick Scan).
Select Full Scan or Microsoft Defender Offline scan. The Offline scan is the 'Secret Weapon' for 2026—it restarts your PC and scans it before the virus has a chance to hide.

Step 2: The 'Second Opinion' with Malwarebytes

In the world of cyber security, one doctor isn't always enough. Sometimes spyware is clever enough to hide from Windows Defender. This is where Malwarebytes comes in. Download the free version. It doesn't replace your regular antivirus; it acts as a specialist that you bring in for a second opinion. Run a 'Threat Scan'—if anything is hiding in the shadows, Malwarebytes will find it and rip it out.

3 Warning Signs to Watch For

The Homepage Hijack: Does your web browser open to a weird search engine you've never heard of (like 'Search-Protect-UK')? This is a sign of a trojan virus.
The Task Manager Test: Press Ctrl+Alt+Delete and click 'Task Manager.' Look at the 'CPU' column. If a program you don't recognize is using 80% or more of your power while you're doing nothing, it is likely 'Mining' cryptocurrency for a hacker.
Unauthorized Password Changes: If you receive an email saying your Amazon or Facebook password was changed and it wasn't you, stop everything. A data breach has likely exposed your logins.

What to Do Next

Once you’ve run your scans and the computer says 'No Threats Found,' don't just relax. The virus might have already seen your keys. Use a password manager to change your email and banking passwords from a clean device. In 2026, online safety basics are about 'Recovery' just as much as 'Prevention.' A clean PC is a great start, but a new password is the final lock on the door.