Is there an entry in the \xampp\apache\logs\error.log file that may hold a clue?
Try and start Apache using the \xampp\apache_start.bat file as this may provide a response that contains a clue.
You have had many servers installed on your PC and if you did not uninstall or disable them completely ie. left a Windows service uninstalled then this may also give this port 80 issue.
Check using the SCM button in the XAMPP Control Panel and look for running services from any of your old installations - first remove any ticks in the Svc check boxes in XCP.
So check what is using port 80 and port 443 as well as port 3306 and remove the offending programs as XAMPP requires exclusive use of those ports.
A useful portable app for testing ports is Curr Ports from here:
http://www.nirsoft.net/utils/cports.htmlmarvolo1300 wrote:Does this forum speak english?
BTW, as per forum etiquette, please be patient and do try not to be sarcastic as this will only give rise to either being ignored completely or at least cause members to reply even slower and could even draw a flame response.