通常，在尝试关闭Windows时，如果某个程序仍未关闭，则操作系统会弹出一个窗口，要求关闭该程序或仍然关闭^{(Shut down anyway)}。我们可以使用任一选项继续。但是，在某些情况下，特定的内部进程可能会禁止关机/重启，并且用户会收到错误消息：

Task Host Window, Task Host is stopping background tasks

这通常发生在有更新文件阻止您的 PC 更新时。

这里的困难部分是无法尝试干净启动来解决问题，因为除非我们强制关闭系统，否则系统无法重新启动。^(Boot)

任务主机窗口^{(Host Window)}，任务主机^{(Task Host)}正在停止后台任务

如果任务主机窗口^{(Task Host Window)}阻止关闭，那么这些建议将帮助您解决问题。

1]尝试Windows更新疑难解答^{(Try Windows Update Troubleshooter)}

1. 单击^(Click)“开始^(Start)”按钮，然后单击类似齿轮的符号以打开“设置”^(Settings)页面。
2. 选择更新和安全^{(Updates and Security)}选项，然后单击疑难解答^{(Troubleshoot)}选项卡以打开疑难解答页面。
3. 滚动以在列表中找到Windows 更新疑难解答并运行它。

如果它解决了问题，很好，否则继续下一步。

2]重启InstallService服务

1. 打开 Services Manager^{(Open Services Manager)}，向下滚动并找到InstallService Service。
2. 右键单击它并选择Restart。
3. 重新启动计算机。

3]更改登录选项

打开设置^(Settings)>帐户^(Accounts)。现在转到“登录^(Sign-In)选项”并向下滚动以在“隐私”下找到“^(’)使用我的登录信息在更新或重启后自动完成设置我的设备”。^{(Use my sign-in info to automatically finish setting up my device after an update or restart)}关闭此功能，看看它是否适合您。

4]Turn Off Hybrid Shutdown/Fast Startup

虽然Hybrid Shutdown/Fast Startup用于加速Windows，但它可能会导致此处提到的问题。尝试以下步骤来turn off Hybrid Shutdown/Fast Startup：

1. Press Win+R打开“运行”^(Run)窗口并键入命令powercfg.cpl。
2. 在左侧的选项中，选择“选择电源按钮的功能”。
3. 单击“更改当前不可用的设置”选项。
4. 取消选中“打开快速启动”。

5]减少关机时间

如果上述所有解决方案都失败了，您可以执行以下操作：

Press Win + R打开运行^(Run)窗口并键入命令 regedit。按 Enter^{(Press Enter)}打开注册表编辑器。

导航到路径：

HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control

右键单击右侧窗格中的WaitToKillServiceTimeout并将值更改为5000。

现在导航到：

HKEY_CURRENT_USER/Control Panel/Desktop

再次，右键单击右侧窗格中的WaitToKillServiceTimeout并将值更改为5000。

将此设置为较低的四位数值（例如 5000）将使您的 PC 关机更快，但您最终可能会丢失数据或导致可能的磁盘损坏，因此请明智地使用此调整。 请记住^(Remember)，Windows在任何情况下都无法识别此处的 3 位数字。

上述步骤应该有助于解决您的问题。^{(The steps mentioned above should help resolve your issue.)}

Task Host Window, Task Host is stopping background tasks

Usually, while trying to shut down Windows, if a program remains unclosed, the operating system pорs υp a window asking to close the program or Shut down anyway. We could use either of the options to proceed. However, in some situations, a specific internal process could be prohibiting the shutdown/restart, and the user gets the error:

Task Host Window, Task Host is stopping background tasks

This usually occurs when there is an update file is preventing your PC from updating.

The tough part here is that that a Clean Boot cannot be attempted to troubleshoot the issue since the system cannot be restarted unless we force shut down it.

Task Host Window, Task Host is stopping background tasks

If Task Host Window is preventing shut down, then these suggestions will help you fix the problem.

1] Try Windows Update Troubleshooter

1. Click on the Start button and then on the gear-like symbol to open the Settings page.
2. Select the option for Updates and Security and then click on the Troubleshoot tab to open the Troubleshooters Page.
3. Scroll to find the Windows Update Troubleshooter in the list and run it.

If it fixes the issue, well and good, else proceed to the next step.

2] Restart InstallService Service

1. Open Services Manager, scroll down and locate InstallService Service.
2. Right-click on it and select Restart.
3. Reboot your computer.

3] Change Sign-in option

Open Settings > Accounts. Now go to ‘Sign-In Options’ and scroll down to find ‘Use my sign-in info to automatically finish setting up my device after an update or restart’ under ‘Privacy’. Turn off this feature and see if it that works for you.

4] Turn Off Hybrid Shutdown/Fast Startup

While the Hybrid Shutdown/Fast Startup is used to speed up Windows, it might cause the issue mentioned here. Try the following steps to turn off Hybrid Shutdown/Fast Startup:

1. Press Win+R to open the Run window and type the command powercfg.cpl.
2. Among the options on the left-hand side, select “Choose what the power button does.”
3. The click on the option “Change settings that are currently unavailable.”
4. Uncheck “Turn on fast startup.”

5] Reduce shutdown time

Should all the solutions mentioned above fail, you could do the following:

Press Win + R to open the Run window and type the command regedit. Press Enter to open the registry editor.

Navigate to the path:

HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control

Right-click WaitToKillServiceTimeout in the right pane and change the value to 5000.

Now navigate to:

HKEY_CURRENT_USER/Control Panel/Desktop

Again, right-click WaitToKillServiceTimeout in the right pane and change the value to 5000.

Setting this to a lower four-digit value, (say 5000) will make your PC shutdown faster, but you could end up losing data or cause possible disk corruption, so use this tweak judiciously. Remember, Windows does not, in any case, recognize a 3-digit numeral here.

The steps mentioned above should help resolve your issue.

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