How to launch Apache Module

[Diboune]

Hello everybody, I m a beginner on the Xampp technology, I' ve installed Xampp V 3.2.1 on windows 8,
the problem is that once I have launched xampp and started all services
the modules apache and Tomcat still inactivated
I tryed to reactivate them but it returns to me an error message
Please Is there anyone who knows how to fix that


The Error message: (remark the process PID 4 is the system process)
18:44:27 [Apache] Attempting to start Apache app...
18:44:28 [Apache] Status change detected: running
18:44:30 [Apache] Status change detected: stopped
18:44:30 [Apache] Error: Apache shutdown unexpectedly.
18:44:30 [Apache] This may be due to a blocked port, missing dependencies,
18:44:30 [Apache] improper privileges, a crash, or a shutdown by another method.
18:44:30 [Apache] Press the Logs button to view error logs and check
18:44:30 [Apache] the Windows Event Viewer for more clues
18:44:30 [Apache] If you need more help, copy and post this
18:44:30 [Apache] entire log window on the forums
18:45:30 [Apache] Problem detected!
18:45:30 [Apache] Port 80 in use by "Unable to open process" with PID 4!
18:45:30 [Apache] Apache WILL NOT start without the configured ports free!
18:45:30 [Apache] You need to uninstall/disable/reconfigure the blocking application
18:45:30 [Apache] or reconfigure Apache and the Control Panel to listen on a different port

[Altrea]

Hi,

There is a sticky for that:
[FGA] Apache won't start