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How to Fix Microsoft Common Language Runtime Native Compiler High CPU Usage?
Close the process from Task Manager
5 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
If you notice a process ngen.exe or Microsoft Common Language Runtime Native Compiler is causing high CPU usage, this guide can help! We will discuss the expert-tested methods to fix the issue right after explaining the causes.
Microsoft Common Language Runtime Native Compiler (ngen.exe) plays an essential component of the .Net Framework, and it creates a Runtime environment that supervises the operation of apps written for the .Net platform, irrespective of their programming language.
It handles various tasks such as converting code into machine language, garbage collection, exception handling, and thread management to enhance the performance of managed apps in Windows.
If you see high CPU usage due to this process, here are some of the reasons for the same:
How to stop CLR Native Compiler’s high CPU usage?
Before engaging in advanced troubleshooting steps, you should consider performing the following checks:
1. Stop the process
Closing the process causing performance issues is a workaround that you can follow before moving to other solutions. You can apply the same approach to other processes, such asRuntime Broker.
2. Restart the service
3. Reset the NGen cache & change the priority settings
4. Run your computer in a clean boot environment
Your computer will restart with limited functionalities so that you can identify the third-party software or service causing the conflict. Once done, follow the steps above to undo the changes and restart your computer normally.
5. Run SFC & DISM scans
6. Delete a registry key
7. Repair/reinstall .the Net Framework
If this doesn’t help, follow these steps to reinstall .Net Framework:
To avoid high CPU performance issues, including the Microsoft Common Language Runtime Native Compiler has stopped working issue, make sure to allow the ngen.exe process to run when your system is in an idle state and keep your system & software up to date.
In case the solutions mentioned don’t work for you, tryto roll back to an earlier version of Windows using a restore point.
If you often facehigh CPU usage on your Windows 11computer, we recommend you check out this guide.
Bumped into any issues, or do you need more info about Microsoft Common Language Runtime Native Compiler? Don’t hesitate to leave a comment in the section below.
More about the topics:windows 10,Windows 11
Srishti Sisodia
Windows Software Expert
Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative blogs.
Her diverse interests bring a unique perspective to her work, and she approaches everything with commitment, enthusiasm, and a willingness to learn. That’s why she’s part of Windows Report’s Reviewers team, always willing to share the real-life experience with any software or hardware product. She’s also specialized in Azure, cloud computing, and AI.
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Srishti Sisodia
Windows Software Expert
She is an electronics engineer and writer with a passion for technology. Srishti is specialized in Azure, cloud computing, and AI.
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