Tools - Analysis Bar - Options - Animate Dialog

Ribbon bar. Select the Tools tab. In the Tools group, click Analysis Bar and from the Options submenu, select Animate Dialog to toggle between displaying/not displaying animation when analysis dialog boxes are minimized/maximized.

Classic menus. From the Tools - Analysis Bar - Options submenu, select Animate Dialog to toggle between displaying/not displaying animation when analysis dialog boxes are minimized/maximized.

By default this command is checked.