You are no doubt reading this article because you stumbled across the Desktop Window Manager process & are wondering just what it is. We’ve got the answer.




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The Desktop Window Manager process (dwm.exe) composites the display of application windows before drawing it lớn your screen. This allows Windows to add effects like transparency và live taskbar thumbnails. This process is a vital part of Windows that you cannot prevent from running.

This article is part of our ongoing series explaining various processes found in Task Manager , like ctfmon.exe , mDNSResponder.exe , conhost.exe , rundll32.exe , Adobe_Updater.exe , và many others . Don’t know what those services are? Better start reading!

So What Is Desktop Window Manager?

Desktop Window Manager (dwm.exe) is a compositing window manager that renders all those pretty effects in Windows: transparent windows, live taskbar thumbnails, Flip3D, and even high resolution monitor support.

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Instead of applications drawing their displays directly to lớn your screen, applications write the picture of their window to lớn a specific place in memory. Windows then creates one “composite” view of all the windows on the screen before sending it lớn your monitor. Because Windows is compositing & displaying the contents of each window, it can địa chỉ effects like transparency and window animations when layering the windows for display.

RELATED: How to lớn Use the New Task Manager in Windows 8 or 10

Can I Turn Desktop Window Manager Off?

No, you can’t. Back in the Vista days, Desktop Window Manager was controlled through a service that you could turn off—and in turn disable all the visual effects. Starting with Windows 7, Desktop Window Manager became a more integral part of Windows, that’s vital lớn creating the graphical user interface. That integration has deepened even further in Windows 8 and 10.

The good news is that Desktop Window Manager has gotten a lot better about how it manages resources, và you shouldn’t really need lớn turn it off.


What Can I vì If It’s Using Up RAM and CPU?

Desktop Window Manager should use fairly minimal resources. On my system, for example, I’ve got half a dozen active apps running, including Chrome, which has got more than a dozen tabs open. Even then, Desktop Windows Manager is using a little less than 1% CPU and about 60 MB RAM. That’s a pretty typical load. You should rarely see it creep much higher than that, & even if it does spike higher on occasion, it should settle back down quickly.

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If you bởi vì see Desktop Window Manager eating up more RAM or CPU than you think it should, there are a couple of things you can try:

Make sure you have your hardware drivers updated , especially the drivers for your đoạn clip card or integrated graphics adapter. Desktop Window Manager offloads a lot of work to lớn your GPU lớn reduce load on your CPU. check your computer for malware . Some types of malware are known to cause issues with Desktop Window Manager.

Those are both good places to lớn start.

RELATED: The Only Safe Way lớn Update Your Hardware Drivers on Windows

Could this Process Be a Virus?

The Desktop Window Manager process itself is an official Windows component. While it’s possible that a virus has replaced the real process with an executable of its own, it’s very unlikely. If you’d like to be sure, you can kiểm tra out the underlying file location of the process. In Task Manager, right-click the Desktop Window Manager process và choose the “Open file Location” option.

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If the tệp tin is stored in your WindowsSystem32 folder, then you can be fairly certain you are not dealing with a virus.

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RELATED: What"s the Best Antivirus for Windows 10? (Is Windows Defender Good Enough?)

That said, if you still want a little more peace of mind, you can always scan for viruses using your preferred virus scanner . Better safe than sorry!