Thanks foe getting back to me so fast. I will be working with Wordpress but may well want to try other scripts in the future. I have built websites with Joomla before.
I used to run a website on Windows Home Server 2009 & 2011 which are now defunct (Shame) which was available on the Internet.
I now want to try running multiply Wordpress Websites on my spare Windows 10 Pro machine which will be reachable by anyone on the internet.
I have installed and run Bitnami Wordpress stacks on "localhost" so am aware of what is involved (well mostly). What I do not know is what changes I need to make to the scripts to allow access from the internet. I run a home network, am aware of the need for a static internal IP address and a static external IP address or resolving software, domain name etc.
Its the allowing external access I need help with really.