XAMPP in Apache Click Start Failure resolution

Error message:

9:15:53 AM [Apache] error:apache shutdown unexpectedly.
9:15:53 AM [Apache] This is due to a blocked port, missing dependencies,
9:15:53 AM [Apache] improper privileges, a crash, or a shutdown by another method.
9:15:53 AM [Apache] Press the Logs button to view error Logs and check
9:15:53 AM [Apache] The Windows Event Viewer for more clues
9:15:53 AM [Apache] If you need + Help, copy and post this
9:15:53 AM [Apache] entire log window on the Forums

Workaround:

1. 80 port conflict, workaround:

Open Directory C:\xampp\apache\conf (my installation directory is C:\xampp) under the httpd.conf file that will listen 80 and ServerName localhost : 80 of 80 is changed to 8081 or other values (try not to use 0-1023 port, this is the system reserved port), to maintain consistency.
2. Listen for port 443 conflicts, Workaround:

Open the directory C:\xampp\apache\conf\extra (my installation directory is C:\xampp) under the httpd-ssl.conf file, the Listen 443 comment out: # Listen 443 or change 443 to 4433 or another value (try not to use 0-1023).

After modifying the above two ports again, start Apache,it works!

9:18:03 AM [Apache] Problem detected!
9:18:03 AM [Apache] Port, use by "D:\Program Files\skype\phone\skype.exe" with PID 4808!
9:18:03 AM [Apache] Apache would not start without the configured ports free!
9:18:03 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
9:18:03 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
9:18:03 AM [Apache] Problem detected!
9:18:03 AM [Apache] Port 443 in use by ' D:\Program Files\skype\phone\skype.exe ' with PID 4808!
9:18:03 AM [Apache] Apache would not start without the configured ports free!
9:18:03 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
9:18:03 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
9:18:03 AM [Apache] attempting to start Apache app ...
9:18:03 AM [Apache] Status Change detected:running

XAMPP in Apache Click Start Failure resolution