"Process 'Apache web server' failed to start. Port 8083 didn't open"
Sounds like there is a port conflict or a hiccup in Acquia Dev Desktop.

Try a reboot. This might fix an Acquia hiccup.
Since you already have XAMPP configured and working the way you want change, I'd suggest changing the Acquia Dev Desktop port.

Here's how:

Open Acquia Dev Deskop
On the menu bar, click &quot;Acquia Dev Desktop&quot;, then &quot;Preferences....&quot;
Click on the &quot;Ports&quot; tab (2nd tab)
Change the &quot;Apache port&quot; to another another number. Eg. &quot;8087&quot;
Click &quot;OK&quot;
You will need to restart the Apache server. You could click the &quot;Stop&quot; -&gt; &quot;Start&quot; button. I prefer to close and re-open Acquia Dev Desktop.

No need to learn/install another DEV environment or change an already setup one (XAMPP)