How to resolve the XAMPP problem if I am getting this error, “19:55:13 [MySQL] Error: MySQL shut down unexpectedly. 19:55:13 [MySQL] This may be due to a blocked port, missing dependencies” - Quora
How To Troubleshoot XAMPP Apache Not Running on Windows 7 - NEXTOFWINDOWS.COM
SOLVED] Cannot Start Apache Server On XAMPP. Port 80 Blocked By PID 4!
php - Apache is not running from XAMPP Control Panel ( Error: Apache shutdown unexpectedly. This may be due to a blocked port) - Stack Overflow
apache - XAMPP PHP is not working - Stack Overflow
Quick Solution of XAMPP Apache not Working (Within 10 Minutes)