That's correct. The next question some might have is, "Can I convert an existing Installer edition install into a Portable edition install?" The answer is yes, but it is a royal PITA due to the divergence of file and folder locations between the two.
Believe me, you are far better advised to just completely uninstall the Installer edition and do a brand new Portable install. However, those who enjoy a challenge can grab a big cup of coffee and take a look at the topic here:
https://getmusicbee.com/forum/index.php?topic=36875.0 . Get all that?
Because they operate separately, you could keep the Installer edition around to use as a visual guide to how you want to format the Portable MB, THEN uninstall it. Keeping both around though on the same PC is BOUND to cause confusion somewhere down the line. IMO, of course
