An old computer or external-drive backup still occupies quota, and the normal delete button seems missing or fails.
Quick Guide
- Re-install or open the Dropbox desktop app on any computer.
- Click the Sync & Backups (or Backups) tab → choose the obsolete backup.
- Click Manage backup → Delete backup and confirm.
- If the device is long gone, unlink it first on the web, then delete the backup.
Common Causes
- Backup deletion requires the desktop app; the web-only interface shows the backup but won’t remove it.
- The original device is still linked, so Dropbox treats the backup as “active.”
Possible Fixes
- Use a current desktop installation to remove the backup via Manage backup.
- Unlink the lost device from Settings → Security → Devices, then retry deletion.
- When the delete option doesn’t appear, restart the desktop app or sign in on another machine with the same account.
Official Help Center References
