桌面窗口管理器^{(Desktop Window Manager)}或Windows 11或Windows 10中的^{(Windows 10)}dwm.exe是一个系统进程，负责管理桌面上的视觉效果等。毫无疑问，该应用程序确实需要一些资源才能运行，但现代台式机和笔记本电脑已配置为轻松处理它。让我们进一步了解这个Windows进程。

什么是桌面窗口管理器 –^{(Desktop Window Manager –)} dwm.exe

DWM.exe有助于在桌面上渲染视觉效果以及各种功能，例如玻璃窗框、3-D 窗口过渡动画、高分辨率支持等。

桌面窗口管理器帮助将^{(Desktop Window Manager)}Windows上的每张图片写入内存中的某个位置，并在屏幕上创建所有图片的组合视图并将其发送到显示器。这样，操作系统可以使用硬件加速^{(Hardware Acceleration)}来创建流畅的动画。它也可以用于创建透明效果。

桌面窗口管理器^{(Desktop Window Manager)}消耗高CPU、GPU或内存

代表桌面窗口管理器^{(Desktop Window Manager)}的文件是dwn.exe。它通常占用 50-100 MB 的内存和大约 2-3% 的CPU——但这完全取决于您的系统。如果打开了大量的窗口和动画进程，则会占用大量内存^{(high memory)}，从而导致系统变慢或导致死机。如果您在使用 dwm.exe 时遇到问题，可以尝试以下方法：

1. 禁用屏幕保护程序
2. 运行性能疑难解答
3. 调整^(Adjust)系统以获得最佳性能
4. 切换到基本主题
5. 更新显示驱动程序
6. 更新所有已安装的软件
7. 用杀毒软件扫描电脑
8. 在干净启动状态下进行故障排除
9. 使用 Xperf。

1]禁用屏幕保护程序

如果桌面窗口管理器^{(Desktop Window Manager)}消耗大量资源，您需要更改主题或壁纸，看看是否有帮助。如果您已激活屏幕保护^{(Screensaver)}程序，请将其禁用并查看。事实上，改变你所有的个性化设置，如锁屏^{(Lock Screen)}、颜色配置文件^{(Color Profiles)}等，看看它是否能让问题消失。

2]运行^(Run)性能^{(Performance Troubleshooter)}疑难解答

您需要优化 Windows 以获得更好的性能^{(optimize Windows for better performance)}。运行性能疑难解答^{(Performance Troubleshooter)}。打开提升的命令提示符^{(Command Prompt)}，键入以下内容并按 Enter：

msdt.exe /id PerformanceDiagnostic

此疑难解答程序可帮助用户调整设置以提高操作系统速度和性能。如果这没有帮助，您可能需要解决 Windows 性能问题^{(troubleshoot Windows performance issues)}。检查您的Windows版本是否有此版本。

3]  调整^(Adjust)系统以获得最佳性能

4]切换到基本主题

切换到基本主题^{(Basic Theme)}将大大减少系统和电池的负载。但是，它不会阻止桌面窗口管理器^{(Desktop Window Manager)}运行。

5]更新显示驱动程序

有些人报告说更新显示驱动程序^{(updating display drivers)}对他们有帮助。因此，请检查您是否正在为您的计算机使用最新的设备驱动程序。

6]更新所有已安装的软件

一些已安装的软件也会使 dwm.exe 使用高内存。因此，请确保您的Windows操作系统以及所有已安装的软件都已更新到最新版本^{(updated to the latest versions)}。

7]使用防病毒软件扫描PC

合法的 dwm.exe 进程位于System32文件夹中。但如果它位于其他文件夹中，则很可能是恶意软件。因此，请使用您的防病毒软件进行全面扫描。^{(full scan)}

阅读^(Read)：桌面窗口管理器停止工作并被关闭^{(Desktop Window Manager stopped working and was closed)}。

8]  在干净启动状态下进行^{(Clean Boot State)}故障排除^{(Troubleshoot)}

执行干净启动^{(Perform a Clean Boot)}，然后尝试手动查找导致 dwm.exe 执行效率低下的违规进程。

9]使用Xperf

系统管理员可以使用基于 Windows 事件跟踪的性能跟踪工具Xperf ^(Windows)，^{(Event Tracing)}它是^(Xperf)Windows评估和部署工具包^{(Windows Assessment and Deployment Kit)}的一部分。

如何禁用桌面窗口管理器^{(Desktop Window Manager)}？

完全关闭桌面窗口管理器^{(Desktop Window Manager)}不会有太大的不同，但如果你想禁用它，你可以在Windows 7和更早版本中这样做，因为它作为服务^(Service)运行。

在Start Search中键入services.msc ，然后按Enter打开Services Manager。找到 桌面窗口管理器会话管理器^{(Desktop Window Manager Session Manager)}服务并将其启动^(Startup)类型更改为已禁用^(Disabled)。

在Windows 10中，它是一个应用程序，因此无法禁用。

关于使用高资源的进程的帖子：^{(Posts about processes using high resources:)}

• WMI 提供程序主机高 CPU 使用率问题^{(WMI Provider Host High CPU Usage issues)}
• Wuauserv 高 CPU 使用率^{(Wuauserv high CPU usage)}
• 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)}。

想了解这些进程、文件或文件类型吗？^{(Want to know about these processes, files or file types?)}

Nvxdsync.exe | svchost.exe | RuntimeBroker.exe | TrustedInstaller.exe | StorDiag.exe | 妈妈.exe。

Desktop Window Manager dwm.exe consumes high CPU, GPU or Memory

Desktop Window Manager or dwm.exe in Windows 11 or Windows 10 is a system process that is responsible for managing, inter alia, visual effects on the desktop. No doubt the application does require some resources to run however, modern desktops and laptops are provisioned to handle it easily. Let us learn some more about this Windows process.

What is Desktop Window Manager – dwm.exe

DWM.exe helps with rendering visual effects on the desktop as well as with various features such as glass window frames, 3-D window transition animations, high-resolution support and so on.

Desktop Window Manager helps write each picture on the Windows to a place in the memory and creates a combined view of all of them on the screen and sends it to the display. This way, the operating system can use Hardware Acceleration to create smooth animations. It could also be used for creating transparent effects.

Desktop Window Manager consumes high CPU, GPU or Memory

The file which represents the Desktop Window Manager is dwn.exe. It usually occupies 50-100 MB of memory and around 2-3%CPU – but it all depends on your system. If a large number of windows and animated processes are open, it will use high memory, and thus consequently slow down the system or cause freezes. If you face problems with dwm.exe, here are a few things you could try:

1. Disable screensaver
2. Run the Performance Troubleshooter
3. Adjust the system for best performance
4. Switch to the Basic Theme
5. Update display drivers
6. Update all installed software
7. Scan PC with antivirus software
8. Troubleshoot in Clean Boot State
9. Use Xperf.

1] Disable screensaver

If Desktop Window Manager is consuming high resources you need to change your theme or wallpaper and see if that helps. If you have activated a Screensaver, disable it and see. In fact change all your Personalization settings like Lock Screen, Color Profiles, etc, and see if it makes the problem go away.

2] Run the Performance Troubleshooter

You need to optimize Windows for better performance. Run the Performance Troubleshooter. Open an elevated Command Prompt, type the following and hit Enter:

msdt.exe /id PerformanceDiagnostic

This troubleshooter helps the user adjust settings to improve operating system speed and performance. If this does not help, you may need to troubleshoot Windows performance issues. Check if your version of Windows has this one.

3]  Adjust the system for best performance

4] Switch to the Basic Theme

Switching to the Basic Theme will greatly reduce the load on the system and the battery. However, it wouldn’t stop the Desktop Window Manager from running.

5] Update display drivers

Some have reported that updating display drivers helped them. So check if you are using the latest device drivers for your computer.

6] Update all installed software

Some installed software are also known to make dwm.exe use high memory. So make sure that your Windows operating system, as well as all your installed software, is updated to the latest versions.

7] Scan PC with antivirus software

The legit dwm.exe process is located in the System32 folder. But if it is located in some other folder, it could well be malware. So do run a full scan with your antivirus software.

Read: Desktop Window Manager stopped working and was closed.

8]  Troubleshoot in Clean Boot State

Perform a Clean Boot and then try to manually find the offending process which is causing dwm.exe to perform inefficiently.

9] Use Xperf

System administrators can make use of Xperf which is a performance tracing tool based on Event Tracing for Windows, and which is a part of Windows Assessment and Deployment Kit.

How to disable Desktop Window Manager?

Turning off Desktop Window Manager completely wouldn’t make much of a difference, yet if you wish to disable it, you can do so in Windows 7 and earlier as it runs as a Service.

Type services.msc in Start Search and press Enter to open the Services Manager. Locate the Desktop Window Manager Session Manager service and change its Startup type to Disabled.

In Windows 10 it is an application and hence cannot be disabled.

Posts about processes using high resources:

• WMI Provider Host High CPU Usage issues
• Wuauserv high CPU usage
• Windows Driver Foundation using high CPU
• Windows Shell Experience Host uses high CPU.

Want to know about these processes, files or file types?

Nvxdsync.exe | Svchost.exe | RuntimeBroker.exe | TrustedInstaller.exe | StorDiag.exe | MOM.exe.

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