Antivirus & Security

How to choose antivirus software

Do you need a paid suite?

Microsoft Defender gives baseline protection on Windows. Paid products from Bitdefender, Norton 360, McAfee, ESET, Kaspersky, Malwarebytes, Avast and AVG, and TotalAV add layers. Independent testing labs such as AV-Test and AV-Comparatives publish results, so check recent scores.

What is bundled?

Suites often add a VPN, a password manager, parental controls and cloud backup. Bundled VPNs can have data caps. If you already pay for a VPN or password manager, you may be paying twice.

How does pricing work?

Introductory prices apply to the first year and renew at much higher rates. Compare renewal cost and the number of devices. Multi-device plans can cost little more than a single-device licence.

What is the performance impact?

Scans use CPU and memory. Lab reports include performance scores. Try the trial on your own machine.

What about trust and country of origin?

Some governments restrict certain vendors. Consider your own risk and local guidance when choosing.

Is there ransomware and phishing protection?

Look for behaviour-based protection and browser anti-phishing features, which matter more than signature scanning alone. Check whether they are in the base plan.

What about support and cancellation?

Check how to reach support and how easy cancellation is. Some vendors hide auto-renew toggles in account menus, so set a reminder.

Which one should you pick?

If you only browse and use mainstream software, start with Windows Defender and see whether you miss anything. If you want a paid suite, compare Bitdefender, ESET and Norton on lab scores and device count. If you want a second opinion scanner, Malwarebytes fits. Skip any suite that you cannot cancel easily.

Common mistakes

Running two real-time antivirus programs together causes conflicts. Another is ignoring operating system updates, which block more attacks than most suites.