Supporting and Troubleshooting Windows 11 — Lesson 3: Networking, Security, Performance, and Recovery

Learning Objectives

• Troubleshoot IP, DNS, Wi-Fi, VPN, proxy, firewall, and remote-connectivity issues
• Support Windows security, BitLocker, Defender, updates, and endpoint-protection controls
• Investigate performance, reliability, backup, recovery, reset, and restore problems

Detailed Topics

• Troubleshoot IP: Troubleshoot IP, DNS, Wi-Fi, VPN, proxy, firewall, and remote-connectivity issues
• Support Windows security: Support Windows security, BitLocker, Defender, updates, and endpoint-protection controls
• Investigate performance: Investigate performance, reliability, backup, recovery, reset, and restore problems

Guided Demonstration

1. Review the requirement, environment, dependencies, roles, risks, and expected outcome.
2. Demonstrate the relevant configuration, analysis, code, or administration workflow step by step.
3. Capture settings, outputs, logs, screenshots, calculations, or test evidence.
4. Compare the observed result with the stated acceptance criteria.

Hands-On Activity

Diagnose a combined network-and-performance incident and validate the recovery path.

• Document assumptions and the planned sequence before making changes.
• Complete the activity and preserve evidence of normal and exception behavior.
• Record issues, corrective actions, and reusable operational or development notes.

Troubleshooting Focus

• Separate symptoms from causes and collect evidence before applying a fix.
• Check configuration, permissions, data, dependencies, capacity, connectivity, and recent changes.
• Validate rollback, recovery, support ownership, and user or business impact.

Validation Checklist

• The requirement and expected outcome are clear.
• The selected configuration, design, query, code, or process is documented.
• Normal, boundary, failure, security, and operational conditions are reviewed.
• The result is supported by evidence and the next improvement is prioritized.

Lesson Outcome

Learners can explain and apply Networking, Security, Performance, and Recovery in a realistic scenario and validate the result with documented evidence.