事件查看器使用事件 ID^{(Event Viewer uses event IDs)}来定义Windows计算机可以遇到的唯一可识别事件。例如，当用户的身份验证失败时，系统可能会生成Event ID。因此，如果用户注销Windows 10计算机并遇到事件 ID 7031 或 7034^{(Event ID 7031 or 7034)}错误，那么这篇文章旨在提供帮助。在这篇文章中，我们将确定此错误的可能原因，并提供解决方法以帮助解决此问题。

用户注销时出现事件ID 7031或 7034 错误^{(ID 7031)}

让我们看一下可能遇到这些错误的典型场景。

你有一个运行Windows 10的设备，并且你有一个在每用户服务模型下运行的应用程序或设备。您从设备注销，然后重新登录。

在这种情况下，您可能会间歇性地收到来自Winlogon的用户注销通知^{(User log-off notification)}消息。您可能还会在系统^(System)日志中看到类似于以下内容的错误事件：

注意^(Note)：在Sync Host_之后出现的数字可能会有所不同。例如，文本可能读取Sync Host_Session1、Sync Host_Session2等。在某些Windows 10版本上，文本可能类似于Sync Host_32613。

发生此事件 ID 7031 0r 7034错误的原因是^{(Event ID 7031 0r 7034)}服务控制管理器^{(Service Control Manager)}完全关闭用户服务的方式发生了变化。具体来说，代码处理会话关闭可能会提前终止进程。

要解决此问题^{(work around this issue)}，请在注销或重新启动系统之前退出所有打开的应用程序和连接。

Microsoft 目前正在调查此问题。^{(Microsoft is currently investigating this issue.)}

阅读下一篇：^{(Read next:)} A Service doesn't start error with Event ID 7000, 7011, 7009^{(A Service does not start error with Event ID 7000, 7011, 7009)}。

Fix Event ID 7031 or 7034 error when user logs off Windows 10 computer

The Event Viewer uses event IDs to define the uniquely identifiable events that a Windows computer can encounter. For example, when a user’s authentication fails, the system may generate Event ID. So, if when a user logs off a Windows 10 computer and encounters Event ID 7031 or 7034 error, then this post is intended to help. In this post, we will identify the possible cause of this error, as well as present the workaround to help remediate this issue.

Event ID 7031 or 7034 error when user logs off

Let’s take a look at a typical scenario where you can encounter these errors.

You have a device that’s running Windows 10 and you have an application or device that runs under the per-user service model. You log off from the device and then log back on.

In this scenario, you may intermittently receive a User log-off notification message from Winlogon. You may also see error events in the System log that resembles the following:

Note: The number that appears right after Sync Host_ may vary. For example, the text may read Sync Host_Session1, Sync Host_Session2, and so on. On some Windows 10 version, the text may read something similar to Sync Host_32613.

This Event ID 7031 0r 7034 error occurs because of changes in the way that Service Control Manager cleanly shuts down user services. Specifically, a code-handling session shutdown may terminate a process early.

To work around this issue, exit all open applications and connections before you log off or restart the system.

Microsoft is currently investigating this issue.

Read next: A Service does not start error with Event ID 7000, 7011, 7009.

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