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    Home»Windows 10»High CPU Or Disk Usage By Ntoskrnl.exe On Windows: How To Fix
    Windows 10

    High CPU Or Disk Usage By Ntoskrnl.exe On Windows: How To Fix

    By Ayukt DhimanSeptember 6, 2021Updated:September 10, 2021No Comments7 Mins Read
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    High CPU Or Disk Usage By Ntoskrnl.exe
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    Many users have reported high CPU or Disk usage by Ntoskrnl.exe on Windows which causes the computer to slow down and also impacts the overall performance of the CPU. If your computer starts to slow down, then the Ntoskrnl.exe program might be the reason behind that

    If this process is impacting your PC causing it to slow down, then you need not worry about it. Here we will be discussing what Ntoskrnl.exe is, what are the reasons for high CPU or disk usage by Ntoskrnl.exe on Windows, and how you can fix it.

    What Is Ntoskrnl.exe?

    Ntoskrnl.exe or Windows NT Operating System Kernel is a memory handler process. This provides the kernel as well as the executive layers of the Windows NT kernel space. This is process is responsible for various system services including memory management, process management, hardware virtualization. It is a fundamental and integral part of a Windows operating system and therefore it is a protected system file that cannot be deleted or corrupted easily.

    Why One Can Face High CPU Or Disk Usage Due Ntoskrnl.exe On Windows?

    There can be various reasons as to why you may face high CPU or disk usage by Ntoskrnl.exe on Windows. Given below are some reasons for this issue to occur-

    • The very first reason as to why you may face this issue is due to new compressed memory. To provide optimal speed, Windows users RAM to save up data instead of regular storage. When you open multiple applications on your PC, more RAM will be used which will increase the CPU usage of the PC.
    • Another reason for one to face this issue is malware or virus infection. Virus or malware attacks can cause the CPU to lag in performance.
    • Outdated or corrupted drivers is another reason for you to face this issue. Drivers are meant for the smooth functioning of the system and if they are outdated or corrupted, then they may cause an issue with the system.
    • If the Ntoskrnl.exe system file gets corrupted, then you may face this error again. This program file hardly gets corrupted because it is well protected by the system. However, if you face this error, then it may not work properly and cause an issue.

    Fixing The High CPU Or Disk Usage By Ntoskrnl.exe On Windows?

    Given below are a few troubleshooting steps to help you fix the high CPU or disk usage by Ntoskrnl.exe on Windows.

    Update Your Drivers

    The very first thing that you can try doing is updating your drivers. You can update drivers using Windows Update.

    Press the Windows + I key combo to open the Settings on your PC.

    In the Settings, search for Windows update and open it.

    Here, click on Check For Updates. Settings will begin checking for the latest updates.

    Windows Update

    When the settings app is done finding the updates, you will see an Optional updates section. Click on it, and you will find the driver update here.

    Download and install the update. After installing the updates, restart your PC, and you will no longer face the issue.

    You can either use third-party apps like Driver Booster or the DriverPack Solution to update the drivers on your PC. These apps scan your PC for all the driver updates and also install them with ease.

    If you are using a laptop then you can simply head to the website of your laptop manufacturer. There, search for your laptop model, open it, and you will get the driver updates for your laptop here. You can now download and install them.

    Scan Your PC With The Antivirus Program

    Another thing that you can try doing is scanning your PC with the Antivirus program. You can use Windows Defender to scan your PC for virus infection. Windows Defender is a built-in antivirus tool on your PC using which you can scan your PC for the virus.

    Antivirus scan

    If you are using any third-party song on your PC, then you can prefer using that to scan your PC for the virus. Scan your PC for viruses or malware and check if you still face the issue or not.

    Check For Incompatible Programs

    If you started facing this issue after installing any program, then it may be because the program is corrupted. If the installation was incomplete, or if the file was damaged, or if you are trying to run incompatible software on your PC, then you may face this issue.

    Try uninstalling the program after which you faced the issue, and check if you still face the issue or not. If you still face the issue, then the program was not the reason behind it. However, if you no longer face the issue, then the program was causing it.

    Change The Registry Settings

    You can try changing certain registry settings. This will help you optimize the performance of your PC, and also fix this issue. To change the Registry settings, follow the steps given below-

    Press the Windows + R key combo on your keyboard to open the Run dialog box on your PC.

    In the run dialog box, type Regedit and then press Enter or click on OK to open the Registry Editor. Head to the following path in the Registry Editor-

    Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management

    Now on the right-side, double-click on the ClearPageFileAtShutdown registry.

    Registry Editor

    Now set the Value data to 1, and then click on OK. 

    After doing so, restart your PC and you should no longer face the issue.

    Disable Windows Search Service

    The next thing that you can do is disabling the Windows search service. To disable Windows Search service, follow the steps given below-

    Press the Windows + R key combo to open the Run dialog box. 

    In the run dialog box, type services.msc and click OK or press Enter to open the Services app.

    In the Services app, search for Windows search and double-click on it. This will open the Windows Search Properties window.

    Services

    Head to the General tab in the properties, and click on stop to stop the service. 

    Windows Search Service

    Now click on OK to save the changes, and close the services app. 

    SFC Scan

    SFC Scan or the System File Checker scans your PC for corrupted or damaged files and fixes them. To run the SFC scan, follow the steps given below-

    In the Start menu search for Command Prompt. Right-click on it, and then click on Run as administrator to given administrator privileges to the Command Prompt.

    In the command prompt, type the command sfc /scannow and hit Enter to execute the command.

    SFC Scan

    Wait for the process to complete, and once the process is complete, you should now no longer face this issue.

    Run DISM Scan

    You can run the DISM scan to fix any issue with your PC. To run the DISM scan, follow the steps given below-

    In the Start menu, search for CMD. Right-click on the Command prompt, and then click on Run as administrator.

    In the command prompt, type Dism /Online /Cleanup-Image /RestoreHealth and hit Enter to execute the command.

    DISM

    Wait for the process to complete, and then restart your PC. You should now no longer face the issue.

    That’s how you can fix high CPU or Disk usage by Ntoskrnl.exe on Windows. Following the above steps, you will be able to solve the issue you were facing.

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