The best antivirus software for Windows
These Windows security suites are worth comparing if you need more than built-in Windows Security. Choose by the extra tools you will use, device coverage, and renewal cost, rather than a headline discount.
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Bitdefender
Bitdefender Total Security is worth comparing when malware protection across several kinds of device is your main goal. Its desktop, Android and iOS apps do different jobs. Check the VPN allowance and the exact platform feature list before treating the bundle as a replacement for every security tool you already use.
- Windows, Mac and mobile options under a wider suite
- Separate device protection from bundled privacy tools
Before you choose The standard VPN has a daily allowance. An iPhone app does not provide desktop-style whole-system malware scanning.
Norton 360
Norton 360 brings device protection and privacy tools into one subscription. It is worth comparing when you need antivirus together with a VPN, password manager, or family features, rather than another scanner alone. Start with the exact plan and the features supported on each of your devices.
- Device security with privacy tools in the same product family
- Selected plans add parental controls and Windows cloud backup
Before you choose Backup, parental controls, and other extras vary by operating system and plan. Compare the renewal charge as well as the first payment.
McAfee
McAfee is an option for households managing several computers and phones. Its product range combines antivirus with web and privacy tools, while eligible plans cover unlimited devices. Decide who needs access and whether the selected individual or family subscription covers those people.
- Unlimited device protection is available on eligible plans
- Apps for major desktop and mobile platforms
Before you choose Entry-level plans can have smaller device allowances. Identity and privacy services also vary by plan and country.
ESET
ESET HOME Security offers several subscription tiers for device protection, with Windows, Mac and Android coverage. It is worth comparing if you want to start with security functions and add wider privacy services only when needed. The Windows feature list is broader than what every other platform receives.
- Essential, Premium and wider plans to compare
- One subscription can cover supported Windows, Mac and Android devices
Before you choose Do not assume all Windows controls are available on Mac or Android, or that an account app provides iPhone antivirus scanning.
Avast
Avast offers a free entry point and paid Premium Security features, now presented within the Avast One app on its product page. It suits readers who want to compare the basic protection with specific extras before buying. Inspect the feature table for your device and review optional components during installation.
- Compare free protection with the extras you need
- Desktop and mobile feature lists are documented separately
Before you choose Product names and bundles can change. Match the installed app and device allowance to the exact offer at checkout.
Malwarebytes
Malwarebytes makes the distinction between a free cleanup tool and paid ongoing protection particularly important. Premium Security adds real-time protection, with features that vary by operating system and plan. Choose it by the prevention you need, not simply because the free scanner found something once.
- Free cleanup and paid ongoing protection serve different tasks
- Desktop and mobile feature tables clarify coverage
Before you choose Check what remains active after a trial and review compatibility before running two real-time security suites together.
TotalAV
TotalAV offers antivirus packages for people who want scanning and device-security tools in one interface. Compare the paid protection level with what your operating system already provides, then decide whether bundled privacy or maintenance tools solve an additional problem for you.
- Paid real-time protection for supported desktop platforms
- Packages combine antivirus with additional tools at different tiers
Before you choose A free scan is not the same as ongoing real-time protection. Check the selected plan, optional add-ons, and automatic renewal.
Sources and how to use this shortlist
These summaries use provider documentation and our selection advice, not hands-on performance scores. Features, plans, and regional availability can change. Confirm the first payment, renewal cost, and cancellation terms before subscribing.
- Bitdefender product documentation
- Norton 360 product documentation
- McAfee product documentation
- ESET product documentation
- Avast product documentation
- Malwarebytes product documentation
- TotalAV product documentation
Sources checked September 25, 2026. Full reviews explain the scope and limitations in more detail.
Windows Security is a sensible starting point on a supported, updated PC. A paid antivirus should address a specific extra need, such as support, household controls, or features you will actually use.
Understand your starting point
Check Windows Security before shopping. Confirm that the intended antivirus provider is active, protection updates are current, and no important warning has been ignored. An expired trial from the computer’s manufacturer can confuse the picture, so identify which product is actually responsible for protection.
What to compare
Compare built-in protection with an established suite such as Bitdefender, Norton 360, or McAfee. Look at current independent Windows tests, paying attention to the product version, test dates, false positives, and performance. A laboratory result is evidence about a specific test, not a guarantee for every future threat.
Four checks before installing anything
- Check the installed Windows version is supported and receiving security updates.
- Open Virus & threat protection and identify the active provider.
- Compare real-time protection, alert clarity, and normal work performance.
- Remove an old real-time engine through its documented uninstaller when switching.
A misleading signal to avoid
A full scan immediately after installation may be more intensive than ordinary background protection. Evaluate normal operation over your real workload, and do not solve a slowdown by excluding your entire downloads folder.
An everyday example
For a shared family PC, use separate accounts and appropriate permissions. Keep an administrator account for deliberate system changes rather than letting every download run with broad privileges. Back up important files separately from the system drive.
Look at the whole subscription
List the devices the plan covers, the capabilities available on each, the total initial payment, and the renewal charge. A household bundle may be helpful when someone will actually manage the devices. It may be unnecessary when you only need one narrow feature on one phone.
A free scan can be different from ongoing real-time protection. Check what happens when a trial ends and whether payment details create an automatic subscription. Save the relevant terms and set a reminder before renewal.
After a warning, take a measured next step
Read the alert and record the detection or site involved. Use the security provider’s official support route if you are unsure. Do not restore quarantined files or grant new permissions just to make an alert disappear.
If credentials may have been exposed, secure the affected accounts from a trusted device. A local cleanup cannot revoke every stolen session. Our scanning guide and recovery guide explain what to check next.
Questions, answered
Is a paid app essential?
Not for everyone. Start with the maintained platform’s built-in protections, then identify the specific feature or support you still need.
Does more software mean more protection?
Not necessarily. Overlapping tools can create conflicts, permission exposure, or confusion. Use a setup whose roles and status you understand.
Sources & further reading
Source review: September 25, 2026. Product features and subscriptions can change; confirm the exact plan before purchase.
About the author
Oliver ReedDevice & family securityOliver’s coverage explores device protection, malware prevention, recovery, and family device controls. These guides put operating-system tools first, explain when extra protection may help, and distinguish prevention from a response to an active incident.
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