Port 443 in use by "Unable to open process" with PID 4! in Apache

THE FOLLOWING MESSAGE SHOWING AFTER RUNNING XAMPP CONTROL PANEL Problem detected! Port 443 in use by "Unable to open process" with PID 4! Apache WILL NOT start without the configured ports free! You need to uninstall/disable/reconfigure the blocking application or reconfigure Apache and the Control Panel to listen on a different port NB: Please open XAMPP by administrator user in Windows 10. THE FOLLOWING MESSAGE SHOWING AFTER CLICKING ON START BUTTON FOR APACHE Status change detected: stopped Error: Apache shutdown unexpectedly. This may be due to a blocked port, missing dependencies, improper privileges, a crash, or a shutdown by another method. Press the Logs button to view error logs and check the Windows Event Viewer for more clues If you need more help, copy and post this entire log window on the forums