That doesn’t necessarily mean you have to be relegated to the tedious effort required to manually close a bunch of Finder windows. Instead of individually closing out of each window that you have open, there’s a simple way to quickly close all open Finder windows.
STEP 1: Open Finder window.
STEP 2: Hold (⌥) while clicking the File menu
STEP 3: Click close all.
This will close all Finder windows in one fell swoop. Actually, the Close All command works with pretty much any app, but it’s especially useful for Finder since you can’t actually quit the Finder like you can with other apps.
If you’d prefer to avoid the menu bar, you can just use this keyboard shortcut instead: