by Sharley » 07. November 2008 23:29
You have another server running on those ports.
Usually the Windows server IIS - Internet Information Server, which can be disabled in your Windows Control Panel - then try and install again.
You could just download the 7Zip version and extract the files to a folder like C:\xampp then run the C:\xampp\xampp-portcheck.exe to find out what is running on port 80 and 443.
Or just ignore the Installation errors and after installation look for the xampp-portcheck.exe and run that file, again to see what is running on the ports that XAMPP requires exclusively.