You can install this module using the admin panel of your store:
Go to section “Modules”, select an item “Download the module”. In the opened window select the archive with a module (“wtdecoration.zip”) and press the button “Download”. Select the module “Decoration” and press the button “Install” (In new Prestashop versions (>1.7) the module is installed automatically, you just need to set it).
The second variant of installation is via FTP:
Unzip the archive with a module. Download folder “wtdecoration” into your store’s folder “/modules”. Select a module “Decoration” and press the button “Install”.
Module disconnection and deleting: In order to disable the module press the button “Disable”. In order to delete the module press the button “Uninstall”.If you want to remove the module completely from the server, press the button “Delete” (for Prestashop versions (>1.7)) or select “remove the folder completely after deleting” in the pop up menu of module deleting.