Spark now comes with over 180 kits and close to 2000 instruments, so you are probably just browsing through all the Factory presets! Inside Spark if you go to the Library Panel, click the Project tab, remove the checkmark from Factory(all), and then click the box next to the User bank you'll see if there are actually any User projects. There shouldn't be any though since you had to install it freshly onto your own computer. The User Library is located in the User folder of your Spark Library.