Steam validating game cache stuck at 100


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.



Be sure to change Steam’s CPU affinity back to the default – using all cores – before launching a demanding, modern game.However, this may not always solve the problem – if the problem has already started occurring, the gameplay may be glitchy until you relaunch the game.One trick you can use is setting Steam.exe’s CPU affinity instead – when you launch the game through Steam, it will inherit Steam’s CPU affinity and launch with the correct CPU affinity.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 disable the overlay for an individual game by right-clicking the game in your Steam library, selecting Properties, and unchecking the Enable Steam Community In-Game check box.