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Fix it in 10 Steps

  • On Windows 11, a crash caused by dwm.exe could indicate a malware infection or damaged hardware.
  • Check your controller or USB devices as a first step in dealing with a dwm.exe crash.
  • Running several system scans such as SFC can help eliminate the encountered error.

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Dwm.exe is an abbreviation for Desktop Window Manager, which is a critical Windows 11 process. Unfortunately, even though dwm.exe is essential, several users have reported problems with it.

You could turn off the Desktop Window Manager (dwm.exe) process in prior versions of Windows. However, this is no longer available in Windows 11.

Because dwm.exe is a critical system process, you should avoid interfering with it unless you want to entirely ruin Windows 11 (and be forced to wipe and reset Windows as a result).

Nevertheless, you can take some potential actions to fix issues with it. Therefore, we prepared a list of methods you can try to solve dwm.exe problems such as high CPU usage and system crashes.

Why is dwm.exe crashing?

After some research, we found a few of the most common reasons why this dwn.exe crash error will appear on your Windows 11 PC.

  • The Desktop Window Manager service is disabled.
  • There is a presence of corrupt system files.
  • The non-Microsoft apps are interfering and conflicting.
  • The graphics driver is outdated.
  • There is a hardware malfunction.
  • Your PC is infected with viruses or malware.

What does dwm.exe do?

Desktop Window Manager (dwm.exe) is a critical system process that manages your graphical user interface. It aids explicitly in creating visual effects like transparent windows and taskbar thumbnails that you’ll see when using Windows.
dwm task manager dwm.exe windows 11

The design of the user interface is logged into Windows memory when you start a new program, allowing the design to be developed.

Windows then manipulate the window designs to guarantee their visual effects are applied.

Windows employs hardware acceleration to assist users in having a more smooth experience, taking advantage of your graphics hardware in the process. But, at the same time, it may fall back to software rendering if your graphics card (or built-in graphics chipset) isn’t capable.

If the dwm.exe process uses a significant portion of your CPU utilization in Windows Task Manager, this would suggest an issue with your hardware or system configuration.

Other factors contributing to excessive CPU utilization by dwm.exe include out-of-date drivers or missing Windows system updates, as well as the fact that internal graphics (rather than an external graphics card) are being used to generate visual effects rather than an external graphics card.

How do I fix dwm.exe high CPU usage?

Here are some quick tips to help you resolve the dwn.exe high CPU usage problem.

  • Change the wallpaper and apply a light theme.
  • Disable the screensaver.
  • Scan your PC for malware or virus.
  • Uninstall the recently installed apps which could be the reason for this issue.
  • Disable hardware acceleration for Office products.
  • Run the performance troubleshooter.
  • Update your graphics driver.

How do I fix the dwm.exe process in Windows 11?

1. Disable screensaver

  1. Press the Win + I buttons to open the Settings app.
  2. Select Personalization from the sidebar.
  3. Click on Lockscreen.
  4. Select the Screensaver option.
  5. In the new window that opens, under the Screensaver drop-down menu, select None.
  6. Hit OK.

For those experiencing high resource use with Desktop Window Manager, you should consider changing your theme or wallpaper to see if that helps.

If you have a Screensaver activated, turn it off and see what happens. Then, try changing all your Personalization options, such as your Lock Screen, Color Profiles, and so on, and see if that solves the problem.

2. Run the Performance troubleshooter

  1. Press the Windows + S on your keyboard and type cmd.
  2. Right-click on the most relevant result to run it as an administrator.
    cmd-search  dwm.exe windows 11
  3. Type or paste in the following command and hit Enter:
    msdt.exe /id PerformanceDiagnostic
    msdt  dwm.exe windows 11

This troubleshooter assists the user in making adjustments to the operating system’s settings to improve its speed and performance.

3. Adjust the system for the best performance

  1. Press the Windows + S on your keyboard, type View advanced system settings and then click on the most relevant result.
    view advanced  dwm.exe windows 11
  2. Click on Settings next to the Performance section.
    settings performance  dwm.exe windows 11
  3. Tick the Adjust for best performance button, then click Apply and OK on the bottom.
    adjust  dwm.exe windows 11

The Adjust for best performance option will make a set of changes to your OS for it to run smoother. If you don’t like them, you can go back by choosing Adjust for best appearance.

4. Check your computer for malware

If dwm.exe is consuming excessive CPU power or memory, a computer virus may be responsible.

The difficulties with dwm.exe have been reported to be resolved by users after checking their computers and eliminating all suspicious files. Thus it is recommended that you attempt this. One of our recommended antiviruses is ESET Intrnet Security which has a high detection rate and relatively low RAM consumption.

On the other hand, users have complained that both Avast and AVG have caused problems with this operation, so you may wish to uninstall those programs from your computer.

It is necessary to point out that practically any antivirus application might cause issues with dwm.exe and should be avoided.

As a result, temporarily delete any third-party antivirus products from your computer or disable the software altogether.

For Norton customers, we’ve put together a comprehensive guide on uninstalling it from your computer. There’s a similar guide available for those who use McAfee.

5. Restart explorer.exe

  1. Press the Windows + S, type Task Manager, and then click on the most relevant result.
    task manager  dwm.exe windows 11
  2. Go to the Details tab and locate the explorer.exe task. Once you have found it, right-click on it and choose End Task.
    explorer end task  dwm.exe windows 11
  3. Go to File and choose Run new task.
    run new task  dwm.exe windows 11
  4. Enter explorer and click OK.
    run task explorer dwm.exe windows 11

If the process takes up too much RAM, this step should cut resources and restore your device’s functionality.

You can also resolve this issue by logging out of Windows 11 and back in. However, remember that this is only a temporary solution, and you may have to repeat the process each time the problem occurs.

6. Delete the mdi264.dll

  1. Press Windows + I to open the Settings menu.
  2. Choose Recovery under the System panel.
    recovery  dwm.exe windows 11
  3. Now click on Restart next to the Advanced startup section.
    advanced startup  dwm.exe windows 11
  4. When your computer restarts, choose Troubleshoot, then go to Advanced options.
    troublehsoot http://kdkick.com/wp-content/uploads/2023/05/1683228530_965_Fix-it-in-10-Steps.jpg
  5. Once you are in the Advanced options menu, click on Command Prompt and enter the following commands, then press Enter after each:
    cd  C: UsersYour Name HereAppDataLocalTemp del mdi264.dll
    cmd option  dwm.exe windows 11

Some PC issues are hard to tackle, especially when it comes to missing or corrupted system files and repositories of your Windows.
Be sure to use a dedicated tool, such as Fortect, which will scan and replace your broken files with their fresh versions from its repository.

Close Command Prompt and restart your computer after doing the above actions.

7. Run the SFC scan

  1. Press the Windows + S to open the Search bar.
  2. Type cmd and select run it as an administrator.
    cmd-search  dwm.exe windows 11
  3. Type or paste inside the window the following command and press Enter:
    sfc /scannow
    sfc scan  dwm.exe windows 11

Wait for the process to finish (which may take some time) before restarting your computer.

You can also choose to use a tool that will do all these steps automatically. Restoro is a repair solution with a wide range of functions, suitable for several software issues.

It can scan your PC in-depth and find any impediment that slows down its performance. After that, Restoro will replace each malfunctioning element with the latest update from its database.

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8. Run DISM

  1. Press the Windows + S key to open the Search bar.
  2. Type cmd and click on the run as an administrator option.
    cmd-search  dwm.exe windows 11
  3. Type or paste in the following commands and press Enter after each to start the process:
    DISM /online /Cleanup-Image / ScanHealth DISM /Online /Cleanup-Image /RestoreHealth
    dism command  dwm.exe windows 11

Sit down and wait for the procedure to finish. Please be aware that it may take up to ten minutes. After that, restart your computer to confirm that the changes have taken effect.

9. Disable Hardware acceleration

  1. Press the Windows + S key to open the Search bar, type regedit, and click on the most relevant result.
    regedit  dwm.exe windows 11
  2. Navigate to Software under HKEY_CURRENT_USER, then go to Microsoft, followed by Office16.0 and Common.
    microsoft regedit  dwm.exe windows 11
  3. Right-click the Common key and choose New, then Key from the menu.
    new common key  dwm.exe windows 11
  4. Enter Graphics as the name of the new key.
    graphics input  dwm.exe windows 11
  5. Now right-click the Graphics key and select New, then DWORD(32-BIT) Value. Name the new value DisableHardwareAcceleration.
    graphics new key  dwm.exe windows 11
  6. Double click DisableHardwareAcceleration value and set its Value data to 1.
    disable apps  dwm.exe windows 11

You must close the Registry Editor and restart your computer for the changes to take effect.

10. Disable problematic services

  1. Press the Windows + R to open the Run dialogue.
  2. Type services.msc, then press Enter or click the OK button.
    dervices window  dwm.exe windows 11
  3. Disable Skype Updater, Google Update (update), and Google Update (gupdatem) services.
  4. Double click on each service, one by one, change Startup type to Disabled and click Apply and OK to save changes.
    disable apps  dwm.exe windows 11

Before closing the Services window, double-check that all of the services listed in Step 2 – Skype Updater, Google Update (update), and Google Update (gupdatem) have been turned off.

Do I need dwm.exe on my computer?

DWM.exe file is an essential Windows core system file and a component of Microsoft Windows. It is mainly responsible for elements including Windows Aero and other visual effects and personalization features like Windows Flip and Flip 3D.

The Visual effects that DWM.exe also include the transparent or glass-like appearance and the rendering of each open window. So, DWM.exe is not a virus and is a safe software component of Windows.

Why is Task Manager using so much CPU?

If you’ve ever opened Task Manager only to have your CPU utilization surge to 100% and stay there, you may have questioned why this strange spike in system resource usage happens.

After all, Task Manager is a program that has little impact on system performance on most computers. We’ll go over the topic in this post.
task manager  dwm.exe windows 11

When you start Task Manager, it starts collecting data about what processes are running, which ones utilize the most system resources, and what resources they use.

Task Manager is gathering this data, and the CPU utilization spike you witness is Task Manager assembling it. When it’s finished, it settles down and displays all the data in a tabular manner.

It’s much more perplexing when you track CPU consumption for many tasks. The solution is to launch Task Manager first, so it can start monitoring CPU consumption immediately, rather than after it has already begun to drain your CPU.

You can slow down the Task Manager update speed to avoid this bothersome situation. However, given how slowly the upgrade will proceed, the CPU utilization surge will occur later.

Windows Task Manager is a quick and straightforward way to monitor which programs are now operating on your computer and how much CPU and memory they are currently consuming.

However, if you are dissatisfied with it, you can look at some alternative Task Manager apps that can assist you in tracking resource usage in Windows.

Dwn.exe is an essential Windows 11 process, and many issues with it can occur, but we hope that you managed to fix those issues by using one of our solutions.

To better understand what dwm.exe does, see our article on why you can’t kill DWM in Windows 11 any longer.

We recommend you review our article on dwm.exe issues in Windows 10 for additional information and potential solutions, as some of the approaches discussed here are also applicable in the new OS.

Lastly, check out our list of actions you can take to make Windows 11 run quicker to have a more enjoyable and swifter experience on your PC.

If you have any further questions, please let us know in the comments section below, as well as which solution you found most compelling.

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