How do I reinstall the Adobe Lightroom PhotoLab plug-in?

This information applies to version(s): 4, 5

For Microsoft Windows

The DxO PhotoLab 4 Lightroom plug-in can be removed from the path:

• Windows Control Panel > Program and Features > DxO PhotoLab plug-in for Adobe Lightroom.

The next time you try to export from DxO PhotoLab to Lightroom, you will be prompted to install the plug-in. You should NOT run the installer manually. 

For Apple macOS

Within Lightroom:

1. Go to File > Plugin manager > Choose plugin
2. Then click View in finder
3. Delete the plugin folder

Do this for all DxO plugins, close Lightroom, and launch DxO PhotoLab. It should prompt you to install the plugin again. If not, Choose "Export to Lightroom."