How To Remove Quick Access From File Explorer (Best Pick)
If you want Quick Access gone completely so that File Explorer opens to "This PC" and the sidebar is clutter-free, Windows does not provide a simple toggle for this in the Settings menu. You have to edit the Windows Registry.
If you just have a few embarrassing or unwanted specific folders in Quick Access: how to remove quick access from file explorer
If you like the Quick Access panel but are annoyed that every folder you open gets "pinned" to the list automatically, you can change the setting to only show folders you manually choose. If you want Quick Access gone completely so