Antivirus & Firewall Configuration

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🛡️ Antivirus & Firewall Configuration

Security in Windows mainly uses:
✅ Microsoft Defender Antivirus
✅ Windows Defender Firewall

They protect your system from viruses, malware, hackers, and unauthorized access.

🦠 Antivirus Configuration (Windows Defender)

🔹 What is Antivirus?

👉 Antivirus software detects, blocks, and removes malware like:

  • Virus

  • Trojan

  • Worm

  • Ransomware

  • Spyware

🔹 Open Antivirus

Go to:

Settings → Privacy & Security → Windows Security → Virus & Threat Protection

🔹 Important Antivirus Settings

✅ 1️⃣ Real-Time Protection

👉 Scans files while working.

✔ Keep it ON

Path:

Virus & Threat Protection → Manage Settings → Real-time protection

✅ 2️⃣ Scan Options

Types:

  • Quick Scan – Fast

  • Full Scan – Entire PC

  • Custom Scan – Selected files

  • Offline Scan – Deep malware

✅ 3️⃣ Cloud Protection

👉 Uses cloud intelligence to detect new threats.

✔ Enable it.

✅ 4️⃣ Ransomware Protection

👉 Protects files from locking.

Path:

Ransomware Protection → Controlled Folder Access → ON

✅ 5️⃣ Exclusions

👉 Files/folders not scanned.

Use carefully:

Exclusions → Add or Remove

🔥 Firewall Configuration (Windows Defender Firewall)

🔹 What is Firewall?

👉 Firewall filters network traffic and blocks unauthorized access.

Controls:

  • Incoming connections

  • Outgoing connections

🔹 Open Firewall

Go to:

Settings → Privacy & Security → Windows Security → Firewall & Network Protection

🔹 Firewall Profiles

  • Domain

  • Private

  • Public

✔ Keep firewall ON for all.

🔹 Allow or Block an App

Path:

Firewall → Allow an app through firewall

✔ Select app → Allow / Block.

🔹 Advanced Firewall Settings

Open:

wf.msc

You can create:

  • Inbound Rules

  • Outbound Rules

✅ Example Rule

Block an app:

  • Inbound Rules → New Rule

  • Program → Select EXE

  • Block connection

  • Apply → Finish

🔐 Antivirus vs Firewall

AntivirusFirewall
Protects from malwareProtects from hackers
Scans filesFilters traffic
Works inside PCWorks on network
Detects virusesBlocks connections

🧠 Best Security Practices

✔ Keep antivirus updated
✔ Enable real-time protection
✔ Scan USB drives
✔ Keep firewall ON
✔ Block unknown apps
✔ Update Windows regularly

📝 Exam Short Notes

  • Antivirus removes malware.

  • Firewall blocks unauthorized access.

  • Defender is built-in antivirus.

  • Firewall controls network traffic.

  • Ransomware protection secures files.

🎯 One Line Summary

👉 Antivirus protects your files and system, while Firewall protects your network and connections.

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