Windows 10 unknown apps just appearing

for some time now I'm getting weird apps ruing. There is no window of the app or anything, just when I press alt+tab or win+tab I see them as empty tiles. Longer the computer is on, more of these tiles appear. There aren't any processes in task manager that I could kill to delete these tiles. I think that computer is slower due to this and sure consumes more battery.

You can see the picture here: