From the Settings window, click the Downloads Cloud tab and select a different server from the Download region box.You’ll have to restart Steam after changing this setting.After deleting this file, you’ll have to log back into Steam and other local settings will also be lost – for example, you’ll have to re-categorize your games.

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If none of these solutions helps, try Googling the problem – you may have run into a game-specific problem with a game-specific solution or just a more obscure Steam bug.

If a game fails to load, crashes as soon as it loads, or crashes when you reach a specific level, your game’s files may be corrupted.

Steam will examine the game’s files and – if any problems are detected – will re-download the corrupted files from Steam’s servers.

To validate a game’s cache, right-click the game in your Steam library and select Properties.

Browse to the HKEY_CURRENT_USER\Software\Microsoft\Windows NT\Current Version\App Compat Flags\Layers key in the registry editor and delete any values associated with Steam.

Steam should now launch without any compatibility mode errors.

You can tell Windows to run on the game on only one CPU core to solve this problem – this is referred to as setting the game’s CPU affinity.

The easiest way to do this is by launching a game, alt-tabbing out, opening the task manager, right-clicking the game’s process on the Processes tab and using the Set Affinity option.

Be sure to close Steam completely (click the Steam menu at the top of the Steam window and select Exit) before deleting this file.

Steam periodically detects the closest download server to you.

Windows doesn’t “save” CPU affinity between sessions – when you close Steam and reopen it, it will use its default CPU affinity settings.