W10 windows too big


since 8.2.0 when i clic File / Open the window browser that appear is full screen. Impossible to reduce, resize or move it.
same when i go to KONTAKT if i save/load an instrument from the browser then i have this massive window again.
it’s not for all browsers for exemple when KONTAKT is missing files the browser that popsup is a small size and i can change it.
i tried on task manager to reduce/maximize window nothing work.
anyone had that ?