Port 80 in use by "Unable to open process" with PID 4!

Problems with the Windows version of XAMPP, questions, comments, and anything related.

Port 80 in use by "Unable to open process" with PID 4!

Postby kwameq » 27. January 2022 02:39

this is the error i get after i installed xampp

1:32:38 AM [main] Initializing Control Panel
1:32:38 AM [main] Windows Version: Enterprise 64-bit
1:32:38 AM [main] XAMPP Version: 8.1.2
1:32:38 AM [main] Control Panel Version: 3.3.0 [ Compiled: Apr 6th 2021 ]
1:32:38 AM [main] You are not running with administrator rights! This will work for
1:32:38 AM [main] most application stuff but whenever you do something with services
1:32:38 AM [main] there will be a security dialogue or things will break! So think
1:32:38 AM [main] about running this application with administrator rights!
1:32:38 AM [main] XAMPP Installation Directory: "d:\xampp\"
1:32:38 AM [main] Checking for prerequisites
1:33:01 AM [main] All prerequisites found
1:33:01 AM [main] Initializing Modules
1:33:01 AM [Apache] Problem detected!
1:33:01 AM [Apache] Port 80 in use by "Unable to open process" with PID 4!
1:33:01 AM [Apache] Apache WILL NOT start without the configured ports free!
1:33:01 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
1:33:01 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
1:33:02 AM [main] Starting Check-Timer
1:33:02 AM [main] Control Panel Ready
1:33:06 AM [Apache] Problem detected!
1:33:06 AM [Apache] Port 80 in use by "Unable to open process" with PID 4!
1:33:06 AM [Apache] Apache WILL NOT start without the configured ports free!
1:33:06 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
1:33:06 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
1:33:06 AM [Apache] Attempting to start Apache app...
1:33:07 AM [Apache] Status change detected: running
1:33:15 AM [Apache] Status change detected: stopped
1:33:15 AM [Apache] Error: Apache shutdown unexpectedly.
1:33:15 AM [Apache] This may be due to a blocked port, missing dependencies,
1:33:15 AM [Apache] improper privileges, a crash, or a shutdown by another method.
1:33:15 AM [Apache] Press the Logs button to view error logs and check
1:33:15 AM [Apache] the Windows Event Viewer for more clues
1:33:15 AM [Apache] If you need more help, copy and post this
1:33:15 AM [Apache] entire log window on the forums


what could be wrong? how can i rectify it?

[EDIT by Altrea: splitted from original topic - not related. One topic per unique user and issue rule]
kwameq
 
Posts: 1
Joined: 27. January 2022 02:27
XAMPP version: 3.3.0
Operating System: windows 10

Re: Port 80 in use by "Unable to open process" with PID 4!

Postby Altrea » 27. January 2022 07:45

Hi,

kwameq wrote:1:33:06 AM [Apache] Port 80 in use by "Unable to open process" with PID 4!

There is a sticky Q&A for that: [Q&A] solving Port 80 in use by PID 4 (http.sys) issue
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Altrea
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Posts: 11926
Joined: 17. August 2009 13:05
XAMPP version: several
Operating System: Windows 11 Pro x64


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