High disk usage can stop email, backups, uploads, and website updates.
- Log in to cPanel.
- Open Disk Usage.
- Check which folders use the most space.
- Delete old backups you no longer need.
- Empty spam and trash folders in webmail.
- Remove unused website files, old zip files, and duplicate uploads.
- Upgrade your hosting package if the account has outgrown its storage.
Do not delete folders if you are unsure what they do. Open a support ticket before removing system or website folders.