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Defender is great antivirus. But antivirus isn't security hardening. WinSentinel audits your entire Windows configuration — the 30+ things Defender doesn't check.
💡 WinSentinel + Defender = defense in depth. They're complementary, not competitive.
Microsoft Defender answers: "Is malware running on this machine right now?"
WinSentinel answers: "Is this machine configured securely?"
A machine can have Defender fully active and still be wide open — UAC disabled, BitLocker off, RDP exposed without NLA, SMBv1 enabled, stale admin accounts, PowerShell in Unrestricted mode, firewall rules accumulated over years. Defender won't flag any of these. WinSentinel checks all of them.
| Capability | WinSentinel | Microsoft Defender |
|---|---|---|
| Primary Purpose | Security hardening & config audit | Antivirus & threat protection |
| Malware Detection | Not in scope (use Defender) | ✓ Real-time AV |
| Configuration Audit | ✓ 30+ modules, 200+ checks | ✗ Not covered |
| Firewall Rule Audit | ✓ Profile analysis + stale rules | ✗ Only on/off status |
| BitLocker/Encryption Check | ✓ Per-volume + TPM + EFS | ✗ Not checked |
| Account & Credential Audit | ✓ Stale accounts, admin sprawl, LAPS | ✗ Not checked |
| PowerShell Security | ✓ Exec policy, AMSI, logging, CLM | Partial (AMSI integration) |
| Network Posture | ✓ Open ports, SMBv1, LLMNR | ✗ Not checked |
| Browser Security | ✓ Extensions, passwords, settings | SmartScreen only |
| USB/Removable Media | ✓ AutoRun, BitLocker-to-Go, history | ✗ Not checked |
| Event Log Analysis | ✓ Failed logons, priv esc, suspicious PS | Limited (feeds into alerts) |
| Security Score | ✓ 0-100 with grade + trends | Requires M365 E5 license |
| Auto-Remediation | ✓ One-click fix with dry-run | ✗ Quarantine only (malware) |
| Compliance Mapping | ✓ CIS L1, Essential 8, SOC2 | ✗ Not available (standalone) |
| CI/CD Integration | ✓ GitHub Action + SARIF | ✗ Not available |
| Open Source | ✓ MIT license | ✗ Proprietary (bundled with Windows) |
| Price (standalone) | Free | Free (bundled) |
| Price (advanced features) | $29/mo (fleet) | $57/user/mo (Defender for Endpoint P2) |
CRITICAL
UAC set to Never Notify
Any program can silently elevate. Defender won't flag this.
CRITICAL
BitLocker not enabled on OS drive
Laptop stolen = all data exposed. Defender doesn't check encryption.
WARNING
RDP enabled without NLA
Pre-authentication attacks possible. Defender sees no malware here.
WARNING
SMBv1 still enabled
WannaCry vector. Defender may block the payload, but why leave the door open?
WARNING
3 stale admin accounts (90+ days inactive)
Lateral movement goldmine. Defender has no concept of account hygiene.
WARNING
PowerShell transcription logging disabled
Attacker PS commands leave no trace. AMSI alone isn't enough.
The best security posture uses both:
Think of it this way: Defender is the lock on your front door. WinSentinel checks that all the windows are closed, the alarm is armed, and you didn't leave the spare key under the mat.
30-second install. See your real security score in under a minute.
dotnet tool install --global WinSentinel.Cli
winsentinel --scoreNo - they do different jobs and work well together. Defender is antivirus and EDR that detects and blocks malware. WinSentinel audits and hardens your Windows configuration - the 30+ posture checks (firewall, BitLocker, SMB, credential exposure, PowerShell policy and more) that antivirus doesn't look at. Run both.
Defender focuses on threats and malware. WinSentinel covers configuration posture: BitLocker and TPM status, firewall rules, open ports, SMBv1, LLMNR/NBT-NS, local-admin sprawl, PowerShell logging and execution policy, encryption coverage, and dozens of other settings, each with a one-click fix.
WinSentinel is free for unlimited use on a single machine. Defender ships with Windows at no extra cost, but it is antivirus, not configuration hardening. WinSentinel Pro - which adds fleet management across many machines - is $29/mo for up to 25 nodes or $79/mo for up to 100 nodes, with annual billing saving 17%.
Yes. The CLI and every audit module are free and open source under the MIT license, installed with dotnet tool install --global WinSentinel.Cli. A single machine gets the full power - all audit modules, the real-time monitor, scheduled scans, and PDF reports - with no limits and no account required. Pro is only for organizations that want to manage many machines from one control plane.
Yes. WinSentinel is built specifically for Windows 10 and Windows 11 (and Windows Server). It uses native Windows APIs to audit configuration that cross-platform tools treat generically, which is why its hardening checks are deeper on Windows.