Time for action — closing Blender
Now let's close Blender and study some basics of animation:
Press the Esc key to close the render window and return you to the 3D View window.
Press Ctrl+Q to quit Blender. A dialog box will come up asking you to confirm that you want to Quit Blender, click on it to quit Blender.
What just happened?
When Blender renders a scene, it brings up a special render window over the 3D window. Pressing the Esc button closes this window, returning you to the 3D window. Ctrl+Q closes Blender 3D down completely. Congratulations! Everything else about learning Blender is just an elaboration on this.