Recommendation for Best antivirus for Windows
Microsoft Defender for Best antivirus for Windows – does it fit?
The built-in free baseline for Windows
Profile match
87%
protection
Overall score
8.7 / 10
First-year price
CHF 0.00
Why Microsoft Defender fits Best antivirus for Windows
Microsoft Defender is among the top-tested antivirus suites on Windows 11 24H2, with strong real-time, ransomware and web protection.
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.
Strengths for Best antivirus for Windows
- Included for free
- Easy to access
- Important benchmark
Weaknesses / caveats
- Fewer extras
- Not enough for every user
Recommended plan
- Plan: Windows Security
- Devices: 1
- First-year price: CHF 0.00
- Renewal: CHF 0.00
Alternatives for Best antivirus for Windows
Frequently asked questions about Microsoft Defender for Best antivirus for Windows
Which is the best antivirus for Swiss users in 2026?
There is no single "best" antivirus. In our tests Bitdefender (all-round), ESET (lightweight & fast) and Norton (family bundle) consistently lead. Which one fits depends on platform, profile and budget – the finder above filters in two clicks.
Is free antivirus like Microsoft Defender enough?
For baseline protection on Windows, Defender is enough in 2026. Anyone needing VPN, password manager, parental controls or extended phishing protection is better served by a paid suite. Compare directly: Defender vs Bitdefender, Defender vs Norton.
Why do you show renewal prices so prominently?
Many vendors lure with -60% in year 1, then charge the full price – often double. We show both prices equally so you see the real 3-year cost.
How often are your ratings updated?
We track AV-TEST and AV-Comparatives results monthly and review every product page at least every 90 days. The last review date is shown above each rating.
Are prices really in CHF and valid for Switzerland?
Yes. All prices are in CHF and match the current Swiss vendor list price. Some vendors offer special pricing via our affiliate link – these are clearly marked.
Does antivirus-vergleich.ch earn commission if I pick a vendor?
Yes, with most vendors. That does not influence ratings: we test against fixed criteria (protection, performance, price, features, support) and weight equally whether or not we have an affiliate partnership. Details: affiliate disclosure in the footer.