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Fake antivirus pop-ups claim your PC is infected to scare you into downloading malware or paying for fake software. Here’s how to block them in your browser and remove any that already got through.

Not sure what antivirus is running on your Windows PC? Here’s how to find out in under a minute using Windows Security Center, Task Manager, and Control Panel.

Free antivirus covers the basics — but paid versions add real-time ransomware protection, phishing filters, VPN, and identity monitoring. We break down exactly what you get (and lose) with the free tier.

Running two antivirus programs simultaneously usually causes conflicts, slowdowns, and false positives — not better protection. Here’s why, plus the one exception where dual protection makes sense.