i know that fl weigth is for plugins and samples, do you know how to remove the plugins that come in fl?

 

Not sure if you can completely uninstall them, but if you'd for them to not appear in the plugin selector, go to your FL studio folder/patches/plugin database/effects OR generators depending on which you want to remove. Simply delete the file of the plugin you don't want to show and that's it. (This does not delete the plugin, only the shortcut to it. This can simply be reversed so don't worry about deleting them.)