How to fix NT Kernel & System Process High CPU Usage in Windows?

Have you ever noticed that CPU usage is high for NT Kernel & System Process in Windows? If you have, fear not! Fixing this one issue should boost the performance of your system. The CPU usage problem is caused by a leak in the system’s memory pool. The following are the steps to take to fix the leak.

Introduction: The Symptoms of the NT Kernel and System Process High CPU Usage

In the event of high CPU usage from the NT Kernel and System process on a Windows system, some of the symptoms to look for include a high number of page faults, a high number of interrupts per second, a high number of context switches per second, and a high number of runnable threads.

How to fix NT Kernel & System Process High CPU Usage in Windows?
How to fix NT Kernel & System Process High CPU Usage in Windows?

Fix #1: Upgrade Your Drivers – NT Kernel & System, In Windows

A Microsoft software update may include drivers for your hardware, but you can also manually download the latest drivers from the manufacturer’s website. Windows 7 Windows 7 automatically recognizes most new hardware and installs any necessary drivers. If you still need to install the driver manually, there is a good chance that it will be on the website of the manufacturer of your computer.

Fix #2: Resolve Any Anti-Virus or Firewall Issues – In Windows

Windows has a built-in anti-virus, but if you have a security solution from another vendor, it’s a good idea to make sure that your security solution is up to date.

Fix #3 Turn Off Runtime Broker – NT Kernel & System

This can be done by booting into Safe Mode and executing: reg add “HKLM\SYSTEM\CurrentControlSet\Control\Lsa” /v RestrictDenyNTLMAccess /t REG_DWORD /d 1 Once the computer is booted back up, disable the Runtime Broker service. Turn off runtime broker so as to avoid any unauthorized access to the system by the Runtime Broker.

This step is more of a precautionary step, and you can easily re-enable runtime broker by running:

REG ADD “HKLM\SYSTEM\CurrentControlSet\Control\Lsa” /v RestrictAllowProcesses /t REG_DWORD /d 0

 

Fix #4 Remove Permissions of “Power User” group

Fix #4 Remove Permissions of “Power User” group This is a common question. The Power User is an administrative account that provides access to most features of Windows, including the ability to modify permissions on files and folders. If this group has no access to anything, they are not an administrative account. To fix this issue, remove the permissions of the Power User group on all shared resources. This will ensure that the group does not have any access to the shared folder.

All permissions for this group are disabled by default. If you have members in this group, they should be removed.

Conclusion: What Causes the Issue and What We’ve Learned

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