If you wish to uninstall one or more of your XLN Audio products you can do so in the XLN Online Installer. Open the XLN Online Installer and untick the checkbox in front of the product you wish to uninstall. To uninstall the plug-in and all content for it untick the checkbox in front of the plug-in and click the big button at the bottom of the installer.
If you wish to uninstall just a certain ADpak, Kitpiece Pak, XOpak or Addictive Keys instrument but not the plug-in, click on the checkbox in front of the product you want to uninstall and click the big button at the bottom. Note that Addictive Drums 2 MIDIpaks cannot be uninstalled.