# Is it safe to delete macOS aerial wallpaper videos?

- URL: https://moreroom.app/folders/macos-aerials
- Item: Video wallpapers (Aerials)
- Location: `/Library/Application Support/com.apple.idleassetsd/Customer`
- Verdict: Safe to remove — Rebuilt or re-downloaded automatically when needed.
- Comes back on its own: yes
- Source: MoreRoom rules catalogue (2026-10-17), by Yando Pte. Ltd.

## What is it?

Video wallpapers and screen savers (Aerials) that macOS downloads when you choose them in Wallpaper or Screen Saver settings, stored in `/Library/Application Support/com.apple.idleassetsd/Customer`. Each video is large, so the folder can reach several GB if you have tried many.

## What happens if you delete it?

macOS downloads an aerial again whenever you select it. If the one you currently use is removed, it is downloaded again in the background.

## How to remove it properly

First choose a still wallpaper or a different screen saver in System Settings › Wallpaper, then move the video files to the Trash in Finder (Go › Go to Folder…). This is a system-wide folder, so an administrator password is needed.