The Unreal Engine’s UnrealCEFSubProcess is a subprocess that manages Chromium Embedded Framework (CEF) operations, such as rendering web content within the engine’s user interface. It is a crucial piece of the Unreal Engine, especially for programmers who want to include web-based components in their projects. 

It’s crucial to keep track of CPU utilization in UnrealCEFSubProcess since it may be used to spot possible performance problems and ensure the engine is functioning properly. UnrealCEFSubProcess can slow down, stall, or crash due to high CPU utilization, which can have a detrimental effect on the user experience.

Key Takeaways

  • The root causes of high CPU usage in UnrealCEFSubprocess can be attributed to outdated or inefficient software and malware, but in this case, it was caused by the antivirus application AVG.
  • To reduce CPU usage, users can either uninstall AVG or exclude the target file of UnrealCEFSubprocess.exe from their antivirus program.

Causes of High  UnrealCEFSubProcess CPU Usage

Several factors might result in high CPU utilization, including a heavy workload, outdated or inefficient software, poor internet connection speeds, and insufficient memory. Another reason can be the introduction of malware that uses the system based on the access.

Yet, in this case, we’ve found that these two elements are the root causes of the problem.

  • The antivirus application AVG: Users of AVG have reported that it causes high CPU usage in UnrealCEFSubprocess, and uninstalling it can return CPU usage to normal percentages.
  • Antivirus software: In general, antivirus programs can sometimes cause high CPU usage in UnrealCEFSubprocess. Excluding the target file of UnrealCEFSubprocess.exe from the antivirus program can help fix this issue.

Solutions for Reducing CPU Usage in UnrealCEFSubProcess

The steps in the process that follows will show you how to fix your computer’s issue and get rid of the performance problem brought on by CPU Usage.

Method 1: Uninstall AVG Antivirus.

One of the specific sources of this issue is the antivirus AVG. Use the steps below if you don’t know how to remove the software.

  • Right-click the Windows Start icon in Windows 11/10 and choose Apps and Features from the menu.
  • Once you’ve located AVG, click the three dots to the right of the program and choose Uninstall.
  • Choose Uninstall from the AVG Antivirus Setup box when it appears.
  • When a confirmation pop-up asks if you wish to uninstall, select yes.
  • Hold off until the software has been completely uninstalled.
  • To complete the removal, you will be requested to restart your computer. Click Restart, and then wait until your machine turns on.

Method 2: UnrealCEFSubprocess Is Excluded From The Antivirus Software.

Try excluding the UnrealCEFSubProcess file from scanning in your antivirus software if you wish to maintain your antivirus program or if the issue remains after uninstalling your antivirus product.

  • Find the exclusion feature in your antivirus software. This will most likely be in the options, and various antivirus applications may use different terminology.
  • Type the path and choose UnrealCEFSubprocess. Alternatively, you may just exclude the entire folder directory.
  • To view the file location for users who selected a different installation path, open Task Manager, then right-click the process.

Tips for Reducing CPU Usage

Reducing CPU usage can help improve the overall performance of your system and prevent it from overheating. Here are some tips to help reduce CPU usage:

  1. Close unnecessary programs
  2. Uninstall programs you rarely use
  3. Limit background processes
  4. Disable startup programs
  5. Scan for and remove malware
  6. Update drivers
  7. Adjust power settings
  8. Upgrade hardware if necessary

Frequently Asked Questions

Why is my CPU usage so high?

Your CPU usage may be high for several reasons, including running too many programs simultaneously, malware infection, outdated drivers, hardware issues, or system errors.

How do you make Unreal Engine use less CPU?

Here are some tips to make Unreal Engine use less CPU:

  1. Close unnecessary programs and background processes to free up CPU resources.
  2. Reduce the quality and resolution of the graphics and textures to reduce the workload on the CPU and GPU.
  3. Use lower settings for lighting and shadows, and disable post-processing effects.
  4. Optimize your game’s code and assets to reduce the CPU workload.
  5. Use profiling tools to identify CPU bottlenecks and optimize performance.
  6. Consider upgrading your CPU or hardware if it is outdated or not powerful enough to handle the workload.
  7. Disable unnecessary features or plugins in Unreal Engine that may be causing high CPU usage.
  8. Use multi-threading and parallel processing to distribute the workload across multiple CPU cores.

Abdullah Sarfraz
Myself Abdullah Sarfraz and I am an SEO. My hobby is reviewing the latest tech-related products. For the past few years, I am working on amazon affiliated sites therefore, I came to know my interest and chose this field, now I have good experience in it.