Apache : Port 80 in use by "Unable to open process"

[jonathansh1115]

why i cant start apache
it keeps on saying

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5:17:41 PM  [Apache]    Problem detected!
5:17:41 PM  [Apache]    Port 80 in use by "Unable to open process" with PID 4!
5:17:41 PM  [Apache]    Apache WILL NOT start without the configured ports free!
5:17:41 PM  [Apache]    You need to uninstall/disable/reconfigure the blocking application
5:17:41 PM  [Apache]    or reconfigure Apache and the Control Panel to listen on a different port


plssssssssssssss help me

[Altrea]

More information please

viewtopic.php?f=16&t=72518#p247610

[jonathansh1115]

More information please

https://community.apachefriends.org/f/viewtopic.php?f=16&t=72518#p247610

everytime i start up xampp it will write those error message there, and then if i start up Apache

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8:40:50 PM  [Apache]    Attempting to start Apache app...
8:40:51 PM  [Apache]    Status change detected: running
8:40:52 PM  [Apache]    Status change detected: stopped
8:40:52 PM  [Apache]    Error: Apache shutdown unexpectedly.
8:40:52 PM  [Apache]    This may be due to a blocked port, missing dependencies,
8:40:52 PM  [Apache]    improper privileges, a crash, or a shutdown by another method.
8:40:52 PM  [Apache]    Press the Logs button to view error logs and check
8:40:52 PM  [Apache]    the Windows Event Viewer for more clues
8:40:52 PM  [Apache]    If you need more help, copy and post this
8:40:52 PM  [Apache]    entire log window on the forums


This will pop up

[Altrea]

Read the post i linked previously to know what amount of information is needed to identify your problem.
The amount of information you gave us is not enough to solve your problem.