XAMPP - Port 80 in use by “Unable to open process” with PID 4!

The XAMPP gives error when you start the apache server

12:51:22 PM  [Apache]   Problem detected!
12:51:22 PM  [Apache]   Port 80 in use by "Unable to open process" with PID 4!
12:51:22 PM  [Apache]   Apache WILL NOT start without the configured ports free!
12:51:22 PM  [Apache]   You need to uninstall/disable/reconfigure the blocking application
12:51:22 PM  [Apache]   or reconfigure Apache and the Control Panel to listen on a different port

just disabled "BranchCache Service" in services.
Somehow windows updates, this service is triggered in startup, and uses 80 ports. When you

check via netstat you could see the system is used this but couldnt understand which service

is used.



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