Here’s my novice side:
I’m trying the first one, moving wordpress on your existing server, but I don’t know what these steps mean:
In the box for WordPress address (URI): change the address to the new location of your main WordPress core files. What’s the new address??
In the box for Site address (URL): change the address to the new location, which should match the WordPress (your public site) address (URI). Ditto
Click Save Settings.
(Do not try to open/view your blog now!)
Move your WordPress core files to the new location. This includes the files found within the original directory, such as https://example.com/wordpress, and all the sub-directories, to the new location. What files do I need to move??
Sorry to be so dumb, all I know is Front Page, and that I don’t know very well.