1. Microsoft Defender
Integrated with supported Windows versions; real-time protection; Windows Security integration.
Points to consider
Windows-focused; some additional services are separate.
Official product information ↗Security software field guide
Compare protection before you choose.
Understand the differences between popular antivirus products, what extra features mean and which details to verify before subscribing.
Start with the right questions
A good choice depends on your operating system, how many devices you use, the types of risks you face and your budget. A bigger bundle is not automatically better for every household.
Quick tip
Check the security tools already included with your operating system before purchasing another product. Then compare current independent test results and the full renewal price.
Quick comparison
This is a high-level editorial overview, not a lab ranking. The table describes product families; exact functions depend on edition, region and version.
| Product | Availability | Often considered for | Verify before buying | Official source |
|---|---|---|---|---|
| Microsoft Defender | Built-in Windows protection | Windows users seeking a built-in starting point | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| Bitdefender | Free and paid options | People comparing layered malware protection | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| Norton | Paid security subscriptions | People considering a bundled security suite | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| McAfee | Paid security subscriptions | Households comparing multi-device plans | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| ESET | Paid security products | Users who value configuration options | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| Avast | Free and paid options | People comparing free and premium tools | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| AVG | Free and paid options | People looking for a straightforward antivirus option | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
| Malwarebytes | Free tools and paid protection | People interested in malware-focused tools | Included features, supported devices, renewal terms and privacy policy | Vendor website ↗ |
Detailed product notes
2. Bitdefender
Product tiers may include real-time threat detection, web protection and ransomware defenses.
Points to consider
Included tools and device limits vary by plan and country.
Official product information ↗3. Norton
Eligible subscriptions may bundle malware protection, VPN, password or identity-related tools.
Points to consider
Check renewal price, plan details and the exact services included.
Official product information ↗4. McAfee
Selected subscriptions combine security protection with privacy or identity-related features.
Points to consider
Device coverage and benefits differ by subscription and region.
Official product information ↗5. ESET
Product editions offer malware detection and other security controls for supported platforms.
Points to consider
Compare editions carefully; not every feature is present in every tier.
Official product information ↗6. Avast
Consumer products include antivirus protection with extra functions in some editions.
Points to consider
Review optional components, privacy settings and subscription terms.
Official product information ↗7. AVG
Consumer antivirus options with extra functions available in selected paid plans.
Points to consider
Check which capabilities require a paid subscription.
Official product information ↗8. Malwarebytes
Products focus on identifying and addressing malware and related threats.
Points to consider
Real-time protection and other functions depend on the product and plan.
Official product information ↗Features worth comparing
| Feature | What it can do | What to verify |
|---|---|---|
| Real-time protection | Checks files and activity for malicious or suspicious behaviour. | Is it included in your chosen edition? |
| Web protection | May block malicious links, downloads or unsafe sites. | Which browsers and operating systems are supported? |
| Ransomware defenses | May detect or limit activity associated with file-encrypting malware. | What safeguards are included for important files? |
| Firewall | Controls network traffic using rules. | Do you already have a suitable firewall enabled? |
| VPN | Encrypts traffic between your device and a VPN provider. | Check data limits, locations, logging terms and whether it is bundled. |
| Password manager | Helps store credentials and create unique passwords. | Is it included and supported on all your devices? |
| Identity monitoring | May alert you to selected uses of personal information. | Which countries, records and response services are covered? |
| Parental controls | May help manage website access or screen time. | Are features available on your family’s devices? |
| Multi-device license | Lets a subscription cover a specified number of devices. | Check operating systems and the number of seats. |
Free antivirus or paid security suite?
Free protection
Can be enough for people who need core malware defenses and are comfortable managing updates, backups and account security separately.
- Review what protection is active.
- Check whether extra features are upsells.
- Keep operating system updates enabled.
Paid subscriptions
May be useful when you need bundled privacy tools, parental controls, identity services or coverage for multiple devices.
- Compare renewal costs.
- Confirm every feature is included.
- Read cancellation and refund terms.
Before installing
Check compatibility and avoid running overlapping real-time antivirus tools without vendor guidance.
- Download from the official vendor.
- Remove unwanted trial software carefully.
- Back up important data regularly.
How to make your final choice
- List your devices. Confirm OS versions and the number of devices needing coverage.
- Review recent independent tests. Compare protection, false positives and performance for the specific version tested.
- Calculate the real cost. Check introductory and renewal prices, subscription length, taxes and device limits.
- Read privacy terms. Understand data collection, sharing and optional telemetry.
- Keep a recovery plan. Maintain backups, update software and enable multifactor authentication.
Frequently asked questions
Is the antivirus included with Windows enough?
For many people, Microsoft Defender combined with software updates, safe browsing, multifactor authentication and regular backups is a reasonable starting point. Additional needs may justify a paid product.
Should I pay for antivirus?
Consider paying when a product provides features you will use. Compare protection, supported devices, privacy terms, renewal price and cancellation policy rather than counting features alone.
Can I run two antivirus products?
Two real-time scanners can conflict or affect performance. Follow the vendors’ compatibility guidance before installing another product. On-demand scanners may behave differently.
Does antivirus stop every scam?
No. Security software cannot prevent every phishing message, fraudulent phone call, payment scam or account takeover. Use unique passwords, multifactor authentication and caution with unexpected requests.
How do I compare subscription costs?
Check the renewal price, number of devices, subscription duration, tax, refund terms, automatic renewal and the features actually included. Promotional pricing may be temporary.
Which antivirus is best?
There is no universal winner. Compare current independent tests, usability, compatibility, privacy, support and total cost for your own needs.
Further research
Browse all guides ↗