Apache doesn't work in XAMPP

Hello everybody! Help anyone who has encountered: Apache does not work in XAMPP. Skype is not installed, the main & ssl ports were changed to 8080 & 1443, respectively.

Problem detected!
20:00:24 [Apache] Port 80 in use by "Unable to open process" with PID 3536!
20:00:24 [Apache] Apache WILL NOT start without the configured ports free!
20:00:24 [Apache] You need to uninstall/disable/reconfigure the blocking application
20:00:24 [Apache] or reconfigure Apache and the Control Panel to listen on a different port
20:00:24 [Apache] Problem detected!
20:00:24 [Apache] Port 443 in use by "Unable to open process" with PID 3536!
20:00:24 [Apache] Apache WILL NOT start without the configured ports free!
20:00:24 [Apache] You need to uninstall/disable/reconfigure the blocking application
20:00:24 [Apache] or reconfigure Apache and the Control Panel to listen on a different port
Author: sercxjo, 2016-02-17
Source

2 answers

To find out which application is listening on the TCP port, run netstat -abn{[2 on the command line]}

 1
Author: alenkins, 2016-02-17 20:04:56

And you will disable the applications that occupy port 80 and port 443, this is often Skype.

 -1
Author: LevBazdyrev, 2016-02-17 19:08:10