How to fix
Igfxext.exe Module high memory or CPU usage
on Windows

My PC has been running slow lately, and in Task Manager I see a process called igfxext.exe Module using a lot of memory. I’m not sure what this is or if it’s safe. Should I be worried about it, and how do I stop it from slowing down my system?

Seeing igfxext.exe using unusually high memory or CPU in Windows can be alarming, especially if you’re not sure what the process does. In most cases, igfxext.exe is a legitimate Intel graphics-related component, not malware. It stands for Intel Graphics External Display Helper Module and is part of the Intel Graphics driver package preinstalled on many Windows devices.

This executable helps manage extended display settings, hotkeys, and interactions with external monitors or projectors. You’ll often find it running quietly in the background as part of Intel’s graphics control processes. However, when igfxext.exe begins consuming too much memory or CPU, it may signal an underlying problem with the graphics driver or a conflict with another application.

These performance issues usually appear after a Windows update, outdated graphics drivers or corrupted system files. In some cases, users notice the high usage right after waking the system from sleep or switching display modes. While igfxext.exe is safe when part of Intel’s software, high resource usage should not be ignored, especially if it’s causing slowdowns or interfering with daily tasks.

To fix igfxext.exe Module high memory or CPU usage, updating your Intel graphics drivers is often the first and most effective step. Other approaches include running system file checks, disabling unnecessary Intel utilities at startup, or reinstalling the display driver entirely.

Manual instructions for these steps and more will be listed below. If you suspect deeper system damage or persistent performance issues, [d1] repair tool can help identify and fix what’s causing the abnormal behavior.

Fix 1. Update your Intel graphics driver

Outdated or broken graphics drivers are one of the most common reasons for igfxext.exe Module using too many resources.

• Right-click on Start and select Device Manager.
• Expand the Display adapters section.
• Right-click your Intel graphics device and choose Update driver.
• Select Search automatically for drivers and wait till all the files are downloaded and installed.
• Restart your PC once the update completes.
• For a much quicker and fail-proof method for driver updates, choose automatic software such as [ref id="DriverFix"].

Fix 2. Reinstall the Intel graphics driver

If updating doesn't help, a clean reinstall can remove corrupted files tied to igfxext.exe.

• Right-click on Start and select Device Manager.
• Right-click your Intel graphics adapter and choose Uninstall device.
• Check the box Delete the driver software for this device when prompted.
• Restart your computer.
• Windows will attempt to reinstall the driver automatically.
• Alternatively, install the latest driver manually from Intel’s official site or use an automatic driver updater.

Fix 3. Check for recent Windows updates

A known bug in Windows or graphics integration could be responsible for abnormal process behavior.

• Type Updates and press Enter.
• In the new window, click Install all (if pending) or Check for updates.
• Wait till all the files are downloaded and installed.
• If optional updates are available, install them as well.
• Restart your system once done.

Fix 4. Disable Intel-related startup tasks

Some Intel utilities are not required for system operation and may be using resources in the background.

• Press Ctrl + Shift + Esc to open Task Manager.
• Go to the Startup tab.
• Look for Intel Graphics Command Center, Intel Driver & Support Assistant, or similar items.
• Right-click and select Disable.
• Restart your system.

Fix 5. Check for system file corruption

Corrupted system files can affect background processes like igfxext.exe.

• Type cmd in Windows search.
• Right-click on Command Prompt and select Run as administrator.
• When User Account Control shows up, click Yes.
• In the Command Prompt window, paste the following command and press Enter:
  sfc /scannow
• Wait for the scan to complete.
• Once the SFC scan is finished, run the following set of DISM commands, pressing Enter after each one:
  DISM /Online /Cleanup-Image /CheckHealth
  DISM /Online /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth
  (Note: if you get an error executing this last command, add /Source:C:\RepairSource\Windows /LimitAccess to it and try again).
• After completing the DISM commands, restart your computer.

Fix 6. Perform a Clean Boot

A clean boot disables third-party services that could be conflicting with Intel graphics software. Some users noticed that the conflicting software was from Dell, but Clean Boot can help you determine the precise software conflicting with the process.

• Type msconfig in Windows search and press Enter.
• Go to the Services tab.
• Mark Hide all Microsoft services and select Disable all.
• Go to the Startup tab and click Open Task Manager.
• In the Task Manager, right-click on each of the items and select Disable, then close the Task Manager.
• Go to the Boot tab, and tick Safe Boot.
• Click Apply and OK, and restart your PC.
• To find out which app(s) is causing conflicts, enable each of the processes (or you can do it in groups), restart, and see if the problem persists. Repeat until you find the faulty app, then either update or uninstall it.