组件对象模型^{(Component Object Model)}或COM是实现 2 个进程或应用程序之间通信的媒介。它允许开发人员创建对象，即COM对象（处理图像、视频和其他文件以生成缩略图），使用户能够插入其他应用程序并扩展它们。但是，有一个与之相关的问题。当COM对象崩溃时，它也会导致宿主进程崩溃。有时一个COM对象的崩溃可能会导致整个Windows进程崩溃。

为解决此问题，Microsoft引入了COM 代理^{(COM Surrogate)}进程。此进程在请求它的原始进程之外运行COM对象。^(COM)因此，如果发生不幸事件并且COM对象崩溃，则只有与其链接的COM Surrogate进程受到影响，而原始主机进程不会受到任何损害。但是，如果同时运行多个COM 代理^{(COM Surrogate)}进程，则会导致CPU使用率过高。看看你能做些什么来解决这个问题！

COM 代理^{(COM Surrogate)}高CPU或磁盘^(Disk)使用率

虽然在许多情况下COM 代理^{(COM Surrogate)}进程本身是必要的，但它的多个实例可能会导致CPU或磁盘^(Disk)使用率非常高，并降低 PC 的速度。这是你可以做的。

1. 使用您的 AV 进行彻底扫描
2. 运行 SFC 工具
3. 运行 DISM
4. 在干净启动状态下进行故障排除

COM Surrogate是一个旨在运行各种程序扩展的进程，但某些病毒可以使用COM Surrogate进程名称伪装自己以防止检测到。

1]使用您的防病毒^(Antivirus)程序运行^(Run)彻底扫描

尽管弹出窗口看起来很一般，但它不断询问登录详细信息的事实可能令人担忧，因为您永远不知道它需要密码做什么。为避免发生任何不幸事件，请彻底扫描您的 PC。Windows Defender应该可以满足您的需求。它是Windows 10^{(Windows 10)}中的默认恶意软件和防病毒软件，并且做得很好。

相关^(Related)： 服务主机：本地系统 CPU 或磁盘使用率高^{(Service Host: Local System high CPU or Disk usage)}。

2]运行证监会

系统文件检查器^{(System File Checker)}或SFC是一种易于使用的命令提示符实用程序，可检查损坏的系统文件^{(System Files)}并用文件的良好副本替换它们。请参阅如何在 Windows 中运行系统文件检查器。

3]运行DISM

部署映像服务和管理 (DISM) 工具是^{(Deployment Image Servicing and Management (DISM) tool)}Windows的内置工具，可让您修复与计算机的隐藏恢复映像相关的常见问题。您还可以使用它来扫描和修复Windows中可能影响系统文件的 .wim 存储的潜在问题。

4]在干净启动状态下进行故障排除

如果您在计算机启动期间收到无法识别的错误，请考虑在干净启动状态下进行故障排除^{(troubleshooting in a Clean Boot State)}。它旨在隔离性能问题并解决高级Windows问题。

Hope that helps!

相关阅读：^{(Related reads:)}

1. COM 代理已停止工作^{(COM Surrogate has stopped working)}
2. 该操作无法完成，因为该文件已在 COM Surrogate 中打开。^{(The action cannot be completed because the file is open in COM Surrogate.)}

Fix COM Surrogate high CPU or Disk usage in Windows 11/10

Component Object Model or COM is a medium to enable communication between 2 processes or apps. It allows developers to create objects, a.k.a. COM objects (handles processing images, videos, and other files to generate the thumbnails) that enable users to plug into other applications and extend them. However, there’s one problem associated with it. When a COM object crashes it also causes the host process to crash. Sometimes crashing of one COM object may cause the entire Windows process to crash.

To resolve this issue, Microsoft introduced the COM Surrogate process. This process runs a COM object outside the original process that requested it. So, if there’s an event of misfortune and the COM object crashes, only the COM Surrogate process linked to it is affected and the original host process is not harmed in any way. But, if there are many COM Surrogate processes running simultaneously, it can lead to high CPU usage. See what you can do to fix this!

COM Surrogate high CPU or Disk usage

While the COM Surrogate process itself is necessary in many cases, multiple instances of it can lead to a very high CPU or Disk usage and the slowing down of your PC. Here’s what you can do.

1. Run a thorough scan with your AV
2. Run SFC tool
3. Run DISM
4. Troubleshoot in Clean Boot State

COM Surrogate is a process designed to run various program extensions but some viruses can disguise themselves using COM Surrogate process names to prevent detection.

1] Run a thorough scan with your Antivirus program

Although the popup seems quite generic, the fact that it keeps asking for login details can be worrying as you never know what it requires a password for. To avoid any event of misfortune, do a thorough scan of your PC. Windows Defender should suffice your needs. It is the default malware and anti-virus software in Windows 10 and does its job well.

Related: Service Host: Local System high CPU or Disk usage.

2] Run SFC

The System File Checker or SFC is an easy-to-use command prompt utility that checks for corrupted System Files and replaces them with a good copy of the file. See, how to run System File Checker in Windows.

3] Run DISM

Deployment Image Servicing and Management (DISM) tool is a built-in tool for Windows that lets you fix common problems associated with your computer’s hidden recovery image. You can also use it to scan and repair potential issues with the .wim store in Windows that may impact system files.

4] Troubleshoot in Clean Boot State

When you receive errors during the computer startup that you cannot identify, consider troubleshooting in a Clean Boot State. It is designed to isolate a performance problem and troubleshoot advanced Windows problems.

Hope that helps!

Related reads:

1. COM Surrogate has stopped working
2. The action cannot be completed because the file is open in COM Surrogate.

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