Look at me here in Blender basics support
I used to use the portable installations of Blender rather than the installer in Windows 10.
Now I have a problem with an addon and I suspect it only works when I use the installer (render+).
Since I put always a lot of effort setting up workspaces, and have loads of addons, I don’t want to start from scratch.
How does that work, so I have now Blender 2.82a portable and want to switch over to Blender 2.82a installer. I suppose I can first copy my appdata/roaming/ etc (my addons folder) and if need, I replace that later in the new installation (installer). Does that work well ?
And I suppose there is then also the addons folder in program files, and end up with some double addons.