Windows 任务管理器是Windows进程的看门狗，可帮助您找到可能消耗大量计算机资源的进程，例如高磁盘使用率^{(high Disk usage)}、CPU、内存^(Memory)等。在这篇文章中，我们将了解什么是Spooler SubSystem App以及为什么它有时会给高 CPU 使用率^{(high CPU usage)}问题。

后台处理程序子系统应用程序 (spoolsv.exe)

有时，在启动任务管理器^{(Task Manager)}服务时，您可能会发现Spooler SubSystem App使用了超过一半的CPU和超过 1 GB 的内存。那么Spooler System应用程序具体是什么，为什么它会在您的 PC 上运行？我们会在一段时间内找到这些问题的答案。

Spooler SubSystem App是一个帮助用户管理他的打印机和传真系统^{(printer and fax systems)}的进程。每当程序将文档发送到打印机时，后台处理程序子系统应用程序会将其添加到打印队列中。Print Spooler服务将这些打印作业保存在内存中，并在打印机可用时将它们一一发送到打印机。如果您在网络上使用打印机，则仅需要访问 Internet。

在正常情况下，整个过程照常进行（如上面的屏幕截图所示），不应占用您计算机的许多资源。它只会在打印时使用一些CPU资源，这是可以接受的。但是，在其他时候， spoolsv.exe^{(spoolsv.exe)}进程可能会占用大量  CPU资源。^(CPU)当Windows^(Windows)打印系统出现问题时，可能会发生这种情况。可能的情况可能包括充满任务的打印队列或错误配置的打印机。

阅读^(Read)：Spooler 子系统应用程序遇到错误，需要关闭^{(Spooler subsystem app has encountered an error and needs to close)}。

后台处理程序子系统应用程序^{(Spooler SubSystem App)}CPU使用率高

您要做的第一件事是运行打印机疑难解答^{(Printer Troubleshooter)(Printer Troubleshooter)}，看看它是否对您有帮助。

如果没有，请打开控制面板^{(Control Pane)}l。在控制面板^{(Control Panel)}中双击管理工具^(Tools)，然后双击服务^(Services)。

在 Services 中找到Print Spooler并右键单击它并选择Stop。

停止此过程后，让Service Manager窗口保持打开状态并打开Windows 文件资源管理器^{(Windows File Explorer)}并浏览到以下文件夹。

C:\Windows\System32\spool\PRINTERS

在此文件夹中删除PRINTERS文件夹中的所有文件以清除可能卡住的打印作业^{(clear possibly jammed print jobs)}。删除这些内容后，您可以右键单击“服务^(Services)”窗口中的“后台打印程序”，然后单击“^{(Print Spooler)}开始^(Start)”以重新启用该服务。

如果这不能解决您的问题，则可能是您为打印机安装的打印机驱动程序存在问题。手动更新驱动程序并确保您的打印机具有最新的打印机驱动程序。

Trust this works for you!

Spooler SubSystem 应用程序是病毒吗？

如果 spoolsv.exe 进程位于System32文件夹中，则它不是病毒，而是合法的Windows 操作系统^{(Windows OS)}文件。如果位于其他地方，它很可能是恶意软件，您需要运行防病毒扫描。

关于使用高资源的进程的其他帖子：^{(Other posts about processes using high resources:)}

• OneDrive 高 CPU 使用率问题
• WMI 提供程序主机高 CPU 使用率问题^{(WMI Provider Host High CPU Usage issues)}
• Windows Modules Installer Worker 高 CPU 和磁盘使用率^{(Windows Modules Installer Worker High CPU & Disk Usage)}
• 桌面窗口管理器 dwm.exe 占用高 CPU^{(Desktop Window Manager dwm.exe consumes high CPU)}
• 使用高 CPU 的 Windows Driver Foundation^{(Windows Driver Foundation using high CPU)}
• Windows Shell 体验主机使用高 CPU^{(Windows Shell Experience Host uses high CPU)}。

What Is Spooler SubSystem app & why the High CPU usage?

The Windоws Task Manаger, a watchdog for Windows processes helps you find procеsses that may be cоnsuming high computer resources lіke high Disk usage, CPU, Memory, etc. In this post we will see what is Spooler SubSystem App & why does it at times give high CPU usage problems.

Spooler SubSystem App (spoolsv.exe)

Sometimes, upon launching the Task Manager service, you may discover that the Spooler SubSystem App uses more than half of the CPU and over a gigabyte of memory. So what is the Spooler System app in particular and why it is running on your PC? We’ll find answers to these questions in a while.

Spooler SubSystem App is a process that helps a user manage his printer and fax systems. Whenever a program sends a document to the printer, the spooler subsystem app adds it to the print queue. The Print Spooler service saves these print jobs in memory and sends them to the printer one by one when the printer is available. It only requires internet access if you’re using the printer on your network.

In normal situations, the entire process proceeds as usual (as seen in the screenshot above) and shouldn’t use many of your computer’s resources. It will only use some CPU resources when printing, and that’s acceptable. However, at other times, there can be a significant amount of  CPU resource usage by the spoolsv.exe process. This is likely to occur when there’s an issue with the Windows printing system. The possible scenarios could include a print queue that is full of tasks or a wrongly configured printer.

Read: Spooler subsystem app has encountered an error and needs to close.

Spooler SubSystem App high CPU usage

The first thing you want to do is to run the Printer Troubleshooter and see if it helps you.

If it doe not, open the Control Panel. In the Control Panel double-click the Administrative Tools and then Services.

Within Services locate Print Spooler and right-click it and select Stop.

Once this process has been stopped, leave the Service Manager window open and Windows File Explorer and browse to the below folder.

C:\Windows\System32\spool\PRINTERS

In this folder delete all the files in the PRINTERS folder to clear possibly jammed print jobs. Once these have been deleted, you can right-click the Print Spooler in the Services window and click Start to re-enable the service.

If this does not resolve your issue it’s likely you have an issue with the printer drivers you have installed for your printers. Manually update the Driver and make sure you have the latest printer drivers for your printer.

Trust this works for you!

Is Spooler SubSystem app a virus?

If the spoolsv.exe process is located in the System32 folder then it is not a virus but the legit Windows OS file. If located elsewhere, it could well be malware and you need to run an antivirus scan.

Other posts about processes using high resources:

• OneDrive high CPU usage problem
• WMI Provider Host High CPU Usage issues
• Windows Modules Installer Worker High CPU & Disk Usage
• Desktop Window Manager dwm.exe consumes high CPU
• Windows Driver Foundation using high CPU
• Windows Shell Experience Host uses high CPU.

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