How to Fix Steam Cloud Sync Error?

If you’ve ever seen a “Steam Cloud Sync” error while trying to launch a game, don’t ignore it. This usually means the save files on your computer don’t match the ones stored in Steam’s cloud. And if you hit “Launch anyway,” you risk losing progress since your last proper sync.

Let’s walk through what causes this issue and how to fix it step by step.

What Causes the Steam Cloud Sync Error?

A sync error usually happens when:

• You’re using the same Steam account on more than one device.
• You play a game on one device, but the cloud sync is off on another.
• Your internet connection is unstable or Steam servers are having issues.
• Game files or Steam’s local folders are corrupted.
• Steam doesn’t have admin access on your PC.

When this happens, Steam detects mismatched data and throws up a warning to prevent overwriting or losing your progress.

Quick Fixes You Can Try First

1. Retry the Sync

Sometimes the error is temporary. If you see an option to “Retry Sync,” click it. Wait for Steam to recheck your files.

Also, check if the game’s cloud status shows “Out of Sync” next to the Play button. Click it and try syncing again.

2. Close Steam on Other Devices

If you’re logged in to Steam on multiple PCs, close it on all but one. Using the same account across devices without syncing properly is a common cause of these errors.

3. Restart Steam Completely

Shut down Steam entirely, including all background processes:

• Open Task Manager (Ctrl + Shift + Esc)
• Right-click all Steam-related processes > End Task
• Reopen Steam and try again

In-Depth Fixes to Solve Steam Cloud Sync Problems

4. Enable Cloud Sync in Steam Settings

Make sure cloud syncing is turned on:

• Open Steam > Click “Steam” top-left > Settings
• Go to the “Cloud” section
• Make sure “Enable Steam Cloud” is checked

Do this on all devices you use with your Steam account.

5. Check Steam Server Status

If Steam servers are down, cloud sync won’t work. You can check this by visiting:

• Steam Status
• Downdetector
• Or Steam’s official Twitter/X feed

If there’s an outage, you’ll just need to wait.

6. Run Steam as Administrator

Admin access gives Steam permission to manage and sync files correctly.

• Search for Steam in Start Menu
• Right-click > “Run as Administrator”

7. Verify Game File Integrity

Corrupt game files can block syncing. Here’s how to check:

• Open Steam > Library
• Right-click the game > Properties
• Go to Installed Files > Click “Verify Integrity of Game Files”

Steam will scan and fix any issues it finds.

8. Repair Steam Library Folder

Sometimes the entire Steam library gets corrupted, not just individual game files.

• Steam > Settings > Storage
• Click the 3-dot icon next to your storage drive > “Repair Library Folder”
• Restart Steam when done

9. Disable IPv6 (Windows Only)

A networking issue with IPv6 can mess with Steam’s ability to sync. To turn it off:

• Open Control Panel > Network and Internet
• Go to Network and Sharing Center > Click “Change adapter settings”
• Right-click your active connection > Properties
• Uncheck Internet Protocol Version 6 (TCP/IPv6) > Click OK
• Restart your PC

Want a Safer Way to Back Up Game Saves?

If Steam’s cloud syncing feels too unreliable, you can take full control by manually backing up your game saves. Tools like EaseUS Todo Backup let you:

• Back up Steam game saves to cloud services like Google Drive, OneDrive, or Dropbox
• Store backups on local or external drives
• Schedule automatic backups for peace of mind

Here’s how to back up game saves with EaseUS:

1. Launch the app > Click “Create Backup” > Choose “Apps Data”
2. Select your game from the list > Click “OK”
3. Choose a backup location (local drive, NAS, or cloud)
4. Start the backup and relax

This way, even if Steam cloud fails, your game progress is always safe.

Conclusion

Steam Cloud sync errors can be frustrating, especially if you’re switching between devices. But with the fixes above, you should be able to get your games syncing properly again.

For complete peace of mind, backing up your game saves with a dedicated tool is a smart idea. That way, you never have to worry about losing your progress—even if the cloud lets you down.