Do you see a "Steam Cloud Sync" error when launching a game through Steam? Without cloud sync your game saves won't backup properly, so let's get that error patched right up before you lose any progress!
There's no sense spending time solving a problem you can't solve because the issue is with the Steam servers. Whether they're down for maintenance or there's an outright outage, cloud sync won't work until they're back up.
You can check the Steam servers using a general outage detector like Downdtector. Visit the site and search for "Steam" to check the status. You can also use Steam-centered tools like the status checker at SteamDB to check the status. Alternatively, you can also check the Steam X (formerly Twitter) account for any announcements about server outages.
If you find that Steam servers are currently unavailable, then there's nothing for you to do but wait. The cloud syncing error is Steam-wide problem, not an issue with your computer or network.
The "Steam Cloud Sync" error usually pops up when you try to use your Steam account on multiple devices simultaneously. For example, let's say you're playing a game through Steam on one computer where your progress is syncing properly. But then, without logging out of your Steam account on the first computer, you launch the Steam client on another computer where the cloud synchronization feature is turned off.
When Steam checks the cloud, it detects a discrepancy in your game progress. You might have reached a new level on the first computer, but because cloud sync was turned off on the other computer, none of your progress was saved there, and you'd still be stuck on the previous level. This can trigger the "Steam Cloud Sync" error message.
While you'll see a "Launch Anyway" option, clicking it will cause you to lose any game progress made since the last sync. In this situation, the best course of action is to close the Steam client on the
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