If you kill dwm.exe (Desktop Window Manager) or if it crashes in widows 10 you can see the old UI on all windows that are open for maybe a second or so before d

If you kill dwm.exe (Desktop Window Manager) or if it crashes in widows 10 you can see the old UI on all windows that are open for maybe a second or so before dwm.exe comes back. (obviously not recommendation on "production" machines)