2026

Microsoft Defender vs Surfshark Antivirus

Microsoft Defender and Surfshark Antivirus compared side by side: protection, performance, pricing, and features. Which antivirus suits you better?

Microsoft Defender

8.7

/ 10

Microsoft Defender comes pre-installed on every Windows PC and provides solid baseline protection against malware, phishing, and ransomware. In independent tests, Defender now performs well and is often sufficient for users with cautious browsing habits. However, anyone who needs VPN, password manager, extended web protection, or parental controls should consider a paid suite. As a free reference point, Defender is the most important comparison benchmark.

1st Year PriceCHF 0.00 RenewalCHF 0.00 PlatformsWindows

Protection 8.7

Performance 9.0

Best for 9.3

First-year price 10.0

Key features 7.2

Support 7.8

Surfshark Antivirus

8.8

/ 10

Surfshark Antivirus is part of the Surfshark One suite, combining virus protection with VPN, data breach alerts, and a private search engine. The antivirus detects malware in real time and protects your webcam from unauthorized access. The biggest advantage: unlimited devices at the same price. Ideal for families and shared households looking for an all-in-one security package at a top price. Pure antivirus protection is solid but not quite at the level of Bitdefender or Norton.

1st Year PriceCHF 59.90 RenewalCHF 119.90 PlatformsWindows, Mac, Android

Protection 8.8

Performance 9.0

Best for 9.2

First-year price 9.3

Key features 8.5

Support 8.2

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Our Verdict

Surfshark Antivirus narrowly wins – Microsoft Defender is the leaner choice.

Surfshark Antivirus scores 8.8 / 10 overall and is the stronger pick on protection and feature scope. If you value maximum performance, low resource use and lower renewal costs, Microsoft Defender is the better fit. Both are excellent options for Swiss users.

See Surfshark Antivirus in detail

Our verdict

Microsoft Defender is a respectable free baseline for Windows in 2026. Surfshark Antivirus (score: 8.8 out of 10) adds web/phishing filter, ransomware module, VPN and password manager – features Defender still does not provide.

On price, Microsoft Defender currently sits at CHF 0 in year one, Surfshark Antivirus at CHF 60. Watch the renewal price closely: both are transparently listed in the table above and matter more long-term than the introductory price.

Strength profiles: Microsoft Defender scores highest on price-performance, Surfshark Antivirus on price-performance. If you care most about one of those dimensions, the choice is clear. For all-round needs, either product is a safe pick.

Feature-by-feature comparison

Criterion	Microsoft Defender	Surfshark Antivirus
Real-time protection	Yes	Yes
Built-in VPN	No	Yes
Password manager	No	No
Anti-tracking / anti-phishing	No	No
Parental controls	No	No
Identity protection	No	Yes
Low system impact	Yes	Yes
Platforms	Windows	Windows, Mac, Android
Number of devices (standard licence)	1	999
System impact in daily use	Very low	Very low

More comparisons with Microsoft Defender

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Frequently asked questions about Microsoft Defender vs Surfshark Antivirus

Is Microsoft Defender enough or do I need :paid?

Defender is solid baseline protection in 2026 and enough for cautious users on up-to-date Windows with 2FA. :paid adds VPN, password manager, web/phishing filter, ransomware module and anti-tracking – useful for banking, crypto, heavy web research or a family setup.

How much does :paid cost per month vs Defender?

Defender is free; :paid costs roughly CHF 3–8/month in year one (converted) and rises on renewal. The exact price is in the table above.

Does :paid slow my PC more than Defender?

In AV-TEST performance tests most commercial suites match or slightly exceed Defender. In daily use on modern hardware the difference is barely noticeable.

Can I run :paid and Defender at the same time?

No – as soon as :paid is installed, Defender disables itself automatically. Two active real-time scanners cause conflicts and should be avoided.