Clear Steam download cache
Try these steps in order. Stop if a step does not apply to your device or could risk important data.
- Open Steam > Settings > Downloads.
- Choose Clear Download Cache.
- Confirm the action.
- Sign back into Steam.
- Restart the download.
More help: Clearing the cache does not uninstall your games, but Steam will sign you out.
Back up important files before repairs that may affect storage or system settings.