What is Windows Defender?
Windows Defender is a antivirus that Microsoft Defender (formerly Windows Defender) is the built-in antivirus for Windows 10 and 11. Free, no installation required, auto-updates via Windows Update. AV-TEST score: 6/6 protection, 5.5/6 pe. It has a Nerq Trust Score of 65/100 (B-). 0 GitHub stars. Published by Unknown. Last analyzed May 2026.
Why This Score
- ⚠️ Security: 0/100 — Some security concerns
- ⚠️ Maintenance: 0/100 — Maintenance activity is low
- ⚠️ Community: 0 stars, 0 downloads — Growing community
- ⚠️ Transparency: License: Not specified — No license specified
Trust & Safety Overview
What Windows Defender Does
Windows Defender is a antivirus in the antivirus category. Microsoft Defender (formerly Windows Defender) is the built-in antivirus for Windows 10 and 11. Free, no installation required, auto-updates via Windows Update. AV-TEST score: 6/6 protection, 5.5/6 performance, 6/6 usability. Dramatically improved since 2018 — now comparable to paid solutions. Includes cloud-based protection, exploit guard, and controlled folder access. No VPN or identity theft fe. It is published by Unknown and has no specified license. With 0 GitHub stars and 0 downloads, it has a small community of users and contributors.
Who Should Use Windows Defender
Windows Defender is suitable for evaluation and non-critical use. Review the trust score breakdown before using in production.
Details
| Author | Unknown |
|---|---|
| Category | antivirus |
| License | Not specified |
| Type | antivirus |
| Source | View on GitHub |
| Security Score | 0/100 |
| Activity Score | 0/100 |
How to Get Started
Check the trust score before installing:
curl nerq.ai/v1/preflight?target=windows-defender
Setup guide · Full safety report · Production review · Is it safe?
Frequently Asked Questions
Last updated May 2026. Trust scores based on automated analysis of public data.