Computer Support/Software Troubleshooting/PC Security

This lesson covers troubleshooting PC security.

Objectives and Skills
Objectives and skills for the troubleshooting PC security portion of A+ certification include:
 * Given a scenario, troubleshoot common PC security issues with appropriate tools and best practices.
 * Common symptoms
 * Pop-ups
 * Browser redirection
 * Security alerts
 * Slow performance
 * Internet connectivity issues
 * PC/OS lock up
 * Application crash
 * OS updates failures
 * Rogue antivirus
 * Spam
 * Renamed system files
 * Files disappearing
 * File permission changes
 * Hijacked email
 * Responses from users regarding email
 * Automated replies from unknown sent email
 * Access denied
 * Invalid certificate (trusted root CA)
 * Tools
 * Antivirus software
 * Antimalware software
 * Recovery console
 * Terminal
 * System restore/Snapshot
 * Pre-installation environments
 * Event viewer
 * Refresh/restore
 * MSCONFIG/Safe boot
 * Best practice procedure for malware removal
 * Identify malware symptoms
 * Quarantine infected system
 * Disable system restore (in Windows)
 * Remediate infected systems
 * Update antimalware software
 * Scan and removal techniques (safe mode, pre-installation environment)
 * Schedule scans and run updates
 * Enable system restore and create restore point (in Windows)
 * Educate end user

Multimedia

 * 1) YouTube: Troubleshooting Common Security Issues - CompTIA A+ 220-902 - 4.2
 * 2) YouTube: Tools for Security Troubleshooting - CompTIA A+ 220-902 - 4.2
 * 3) YouTube: Best Practices for Malware Removal - CompTIA A+ 220-902 - 4.2