尝试在 Windows 10 或 Windows 11 计算机上启动Steam游戏时，您可能会收到错误消息Failed to start game (app already running)。在这篇文章中，我们将找出潜在的原因，并为错误提供最合适的解决方案。
当启动一个因无声崩溃而关闭不正确的游戏或无法正常启动的游戏时，您最有可能遇到此错误。在某些情况下，游戏可能已经在您的 Windows 游戏 PC 中以不同的用户帐户运行。
如何修复 Steam 运行错误？
只需(Simply)打开游戏的属性(Properties)表，单击本地文件(Local Files)选项卡 >验证游戏文件的完整性(Verify Integrity of Game Files)。根据游戏的大小，此过程可能需要一段时间。等待(Wait)该过程完成，然后重新启动Steam客户端，然后打开游戏。这个问题应该得到解决。请参阅下面的详细解决方案。
无法启动游戏（应用程序已在运行）– Steam错误
如果您遇到此Failed to start game (app already running) – Steam错误，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看是否有助于解决问题。
- 退出游戏游戏流程
- 在 PC 上注销其他用户帐户
- 重启电脑
- 退出当前Steam测试版（如果适用）
- 验证游戏文件完整性
让我们看一下关于列出的每个解决方案所涉及的过程的描述。
1]退出游戏进程
此解决方案需要您通过任务管理器(Task Manager)、命令行或第三方工具来(third-party tools)end/kill the game process。如果这不能解决无法启动游戏（应用程序已运行）(Failed to start game (app already running))错误，您可以继续下一个解决方案。
2]在PC上注销(Sign)其他用户帐户
如前所述，如果游戏已经在您的 Windows 游戏 PC 中以不同的用户帐户运行，您将遇到此问题。在这种情况下，要解决此问题，您需要在您的计算机上注销其他用户帐户。(sign out other user accounts)
3]重新启动计算机
只需 restarting your Windows 10/11 PC即可轻松解决此问题。否则(Otherwise)，请尝试下一个解决方案。
4] 退出当前Steam测试版（如果适用）
如果您目前正在参与Steam测试版，您很可能会遇到此问题。在这种情况下，您可以尝试选择退出并再次测试该问题。
请执行下列操作：
- 在Steam中，点击左上角的 Steam，然后选择设置(Steam)菜单(Settings)。
- 单击帐户(Account)选项卡。
- 单击Beta Participation下的(Beta Participation)Change按钮。
- 从下拉列表中，选择NONE – Opt out of all beta 程序(NONE – Opt out of all beta programs)选项。
- 单击确定(OK)。
- 在出现的提示中单击重新启动 Steam按钮。(Restart Steam)
手头的问题应该解决，否则尝试下一个解决方案。
5]验证游戏文件完整性
如果游戏安装出现问题，您将收到此错误消息。在这种情况下，您可以使用 Steam 的内置实用程序来验证游戏文件的完整性。就是这样：
- 打开 Steam 客户端。
- 单击 库(Library )选项卡以查看您的游戏。
- 现在，右键单击有问题的游戏并选择 Properties。
- 在弹出窗口中，转到“本地文件”(Local Files) 选项卡。
- 单击验证游戏文件的完整性(Verify Integrity of Game Files) 按钮。
根据游戏的大小，此过程可能需要一段时间；所以请耐心等待Steam验证游戏文件 - Steam将自动重新获取未通过验证检查的文件。
希望这可以帮助！
为什么Steam说我的游戏正在运行，而实际上它没有运行？
当您之前的游戏未能正确关闭或您只是忘记退出时，PC 游戏玩家通常会遇到此问题。对于通过Steam(Steam)安装和下载的每个游戏，都需要打开Steam客户端才能运行。(Steam)
相关文章(Related post)：安装或更新 Steam 游戏时出错(An error occurred while installing or updating Steam game)
Failed to start game (app already running) - Steam error on Windows PC
When attempting tо launch a Steam game on your Windows 10 or Windows 11 computer, you may receive the error message Failed to start game (app already running). In this post, we will identify the potential cause, as well as provide the most suitable solutions to the error.
You’re most likely to encounter this error when launching a game that has closed improperly with a silent crash, or that is failing to launch properly. In some cases, the game may already be running under a different user account within your Windows gaming PC.
How do I fix Steam running error?
Simply open the Properties sheet of the game, click the Local Files tab > Verify Integrity of Game Files. Depending on the size of the game, this process may take a while. Wait until the process is complete, then restart the Steam client, and open the game. The issue should be resolved. See detailed solutions below.
Failed to start game (app already running) – Steam error
If you’re faced with this Failed to start game (app already running) – Steam error, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.
- Quit game game process
- Sign out other user accounts on PC
- Restart computer
- Opt-out of the current Steam beta (if applicable)
- Verify game file integrity
Let’s take a look at the description of the process involved concerning each of the listed solutions.
1] Quit game process
This solution requires you to end/kill the game process via Task Manager, command-line, or third-party tools. If this didn’t fix the Failed to start game (app already running) error, you can proceed with the next solution.
2] Sign out other user accounts on PC
As already noted, if the game is already running under a different user account within your Windows gaming PC you’ll encounter this issue. In this case, to resolve the issue, you need to sign out other user accounts on your computer.
3] Restart computer
Simply restarting your Windows 10/11 PC can easily resolve this issue. Otherwise, try the next solution.
4] Opt-out of the current Steam beta (if applicable)
If you are currently participating in the Steam beta, you’re likely to encounter this issue. In this case, you can try opting out and testing the issue again.
Do the following:
- In Steam, click on Steam in the upper left, then choose the Settings menu.
- Click the Account tab.
- Click the Change button under Beta Participation.
- From the drop down list, select the NONE – Opt out of all beta programs option.
- Click OK.
- Click the Restart Steam button on the prompt that appears.
The issue at hand should be resolved, otherwise try the next solution.
5] Verify game file integrity
If there is an issue with the installation of the game, you’ll get this error. In this case, you can use Steam’s built-in utility to verify the integrity of the game’s files. Here’s how:
- Open Steam client.
- Click the Library tab to view your games.
- Now, right-click the problematic game and select Properties.
- In the pop-up window, go to the Local Files tab.
- Click the Verify Integrity of Game Files button.
Depending on the size of the game, this process may take a while; so be patient and wait for Steam to validate the game’s files – Steam will automatically reacquire files that failed the validation check.
Hope this helps!
Why does Steam say my game is running when it’s not?
PC gamers usually encounter this issue when your previous game failed to shut down properly or when you simply forgot to exit. For every game installed and downloaded through Steam, the Steam client needs to be opened in order to run.
Related post: An error occurred while installing or updating Steam game
