What Is System Interrupts and Why It Is Running on High CPU Usage?

Hardware or driver issues may be to blame if your computer is interfering with System Interrupts and high CPU consumption. You’ll learn all about System Interrupts in this post, including what they are and how to discover and fix their high CPU utilisation.

Despite the fact that it shows as a process in Task Manager, System Interrupts are not a process in the classic sense. Instead, it is an aggregate placeholder for the presentation of the system resources utilised by all hardware interrupts on your Computer system.

Hardware interrupts are the heart and soul of every computer. They can also be used to run and manage multiple tasks at once. Some critical instructions can be processed on the Computer Interrupt mechanism by suspending all other processes, or the CPU can be alerted by processes that they are ready for execution.


As a rule of thumb, interrupts should not exceed 3% in any regular condition on your computer or operating system. Such errors can be traced back to an external device or a badly configured driver or quick boot, for example, even though the process will leap to 20% and stay there.

How to Reduce CPU Usage Due to System Interrupts

System Interrupts High CPU is addressed in detail in this manual. Work your way down the list until you find a method that works for you. As you descend, the methods become more complicated. Let’s get started!

 1. Perform Device and Driver Troubleshooting

To begin with, you need to figure out exactly what the problem is. There are a few software exceptions (all of which are discussed in the above section) and faulty drivers that cause system interrupts.

Disconnecting all external devices is a good place to start before tackling the internal ones. Updates to device drivers will also need to be made on a regular basis.

Unplug everything that’s connected to a computer or other devices, including your keyboard and mouse, as well as any WiFi or Bluetooth adapters you may have. Keep a close eye on CPU utilisation as you disconnect each device.

Disconnect the other devices if it stays the same, but if it drops significantly (about 2-3 percent), you’ve found the culprit. It’s also possible to investigate internal devices in case you were unable to find the broken exterior device.

Keep in mind that this step is more difficult than the preceding one because it requires more than just unplugging the gadgets from the wall. Using the device manager, disconnect each device one at a time. For this step, follow these directions:.

Step 1: To begin, open the Run dialogue box by pressing Windows + R. A dialogue box will open, in which you should type and then press Enter to launch DevMgmt.

Step 2: Disable devices one by one in the device manager and check the CPU consumption of system interrupts once each device is disabled. As long as the CPU utilisation continues at 20% to 30%, the deactivated device isn’t the problem and you can proceed to disable other devices in the same way.

Step 3: To be safe, don’t disable any of your system’s critical components, such as the disc driver, CPU, or display adapter, which fall under the umbrella term “computer device.”

Step 4: Now, make sure all of your computer’s devices have the most recent versions of their drivers installed. Again, this is a difficult and time-consuming process. The need for manual driver updates is necessitated by the fact that automatic updates cannot be depended upon.

Check to check if updating the driver to the most recent build makes a difference before concluding that a specific device is to blame for the issue. Please remember to only download drivers from the official website of the hardware vendor.

2. Disable USB Root Hubs 

The USB Root Hubs are not connected to a computer via a USB peripheral. You can connect many USB devices to your PC using a software device. Most computers come equipped with numerous USB Root Hubs, allowing you to share the data bus with a variety of peripherals.

It is necessary to first identify which USB Root Hubs are in operation in order to disable those that aren’t. After determining that, you’ll stop all the extra root hubs so that it fixes the high CPU utilisation caused by system interrupts.

To accomplish the same result, follow these steps:

Step 1: To open the Run app, press Windows key + R.

Step 2: In the newly opened window, type devmgmt.msc and hit enter. Continue with Step and locate all of the root hub devices mentioned under Universal Serial Bus Controllers (USB-C). Right-click the root hub to complete the process. This is the final step, so click on Properties now.

Step 3: Check the Power tab to determine if your devices are connected once the properties have opened. If your keyboard and mouse are connected to that particular root hub, they will appear there. All other root hubs can be disabled, but this one must be left enabled.

Once the root hub for your keyboard and mouse has been detected, simply right-click on all other root hubs and select Disable from the context menu that appears.

Next, restart your computer to see if the problem has been repaired. Step 8: If it doesn’t go away, you can undo everything you’ve done.

3. Disabling Audio Enhancements 

Enhancements are used by some sound drivers in order to improve sound. You’re now experiencing System Interrupts and high CPU use as a result of these properties not synchronising with the Computer or being incompatible. Try disabling audio enhancement to see if that helps reduce CPU utilisation.

Not all sound drivers are capable of doing this task. The Enhancement tab has been renamed to sound blaster in these sound drivers. In this instance, you must disable all of the audio’s effects in order to fix it.

Other apps may be able to take full control of the sound card through the “Exclusive mode” option in some sound drivers. While this is unlikely to be the problem, it’s worth testing to see if it does.

Step 1: To begin, open the Run dialogue box by pressing Windows + R. When a dialogue box appeared, type Control Panel to open the Control Panel. A search bar will appear in the upper right corner of your screen once the Control Panel has opened. It’s time to add some sound to it.

Step 2: Right-click on the audio device connected to the PC and select Properties when the sound option has opened. Uncheck all the enhancements that are activated in the Enhancement tab in step.

Step 3: The “Disable all enhancements” option is also available. Click on the Advanced tab and then uncheck “Allow programmes to alter system settings” on the last step. Save the changes you’ve made, and then depart. You can undo all the modifications you made if this approach does not work.

4. Magic Packet Settings

Windows offers a capability that allows your computer to be awakened when data is transmitted over the network. Data packet “Wake on Magic Packet” is referred to by the computer system.

As a cautionary note, this feature is known to cause high CPU utilisation concerns because it appears that a large number of Interrupts are generated and the Computer system corresponds to each of them. In the options, you may be able to turn off this feature entirely. If you find that this step isn’t working for you, you can always turn it off again.

Step 1: To begin, open the Run app by pressing Windows + R on your keyboard. Using the Run dialogue box, type devmgmt.msc and then click Enter.

Step 2: The device manager on your computer will now open. For each category, you’ll find all of your computer’s attached gadgets in the device manager. To access other devices, open the drop-down menu for Network Adapters by clicking it.

Step 3: Right-click on your Ethernet and WiFi device and then select Properties from the menu that appears. Then, click on the Advanced button. There are a number of possibilities available.

Continue down the list until you reach the choice to Wake on Magic Packet, and then select it. It will be possible to access its full potential once its value has been enabled. Select Disabled and then leave the application.

Restart your computer and verify whether the System Interrupts High CPU issue has been resolved.

5. Installing Intel’s Rapid Storage Technology 

SATA drives in mobile, desktop, and server systems can benefit from Intel Rapid Storage Technology, which boosts both reliability and performance. The programme runs on Windows.

You can take advantage of the decreased power consumption and increased performance of SATA disc drivers while employing one or more of them.

Data loss can be minimised if the user has many hard drives set up to secure it. Some users found that installing the Intel Rapid Storage Technology module alleviated their problem of excessive CPU utilisation due to System Interrupts.

Installing it is a straightforward process. However, it should be mentioned that the SATA controller driver on the Computer will be replaced by this software.

You can download and install the module from Intel’s official website if you are comfortable with the installation process. Its icon will appear in the taskbar once the product has been successfully installed.

6. Fast Startup

Fast startup in Windows 10 is similar to Windows XP’s hybrid sleep mode in that it saves power when the computer is not in use. It combines the advantages of a cold shutdown with those of the hibernation mode. Similar to a cold boot, Windows logs off all users and stops all applications when the computer is shut down by the user.

The state of Windows at this time is comparable to when it first boots up (all the apps closed and all of the users logged off). The system’s kernel has already been loaded and the system session is now functioning, notwithstanding this fact.

Device drivers are notified to start preparing for hibernation once this window closes, saving the current system state for later retrieval when the computer is powered off.

Restarting the computer will not result in a re-loading of the kernel, drivers, or any other state information. It will then take you to the Startup screen after refreshing the RAM with the image loaded from the hibernation file.

Since it does not completely shut down the computer, you might try disabling this option to see if it works better. System Interrupts high CPU was solved instantly by disabling this option for many users.

Step 1: When you press Windows + R, you’ll be able to access the Run app. In the dialogue box, type Control Panel. Open the Control Panel by clicking on the Start button and then selecting Control Panel > Power Options.

Step 2: Select the Choose what the power buttons do option on the left side of your screen when the Power Options window has opened. When you get to the fifth step, you’ll notice an option that requires administrative access. A drop-down menu labelled “Change Settings” appears here. This option can be selected.

Make sure that the “Turn on rapid startup” option at the bottom of your screen is unchecked. Exit after saving the changes you’ve made. Check if the issue has been repaired by doing a fresh boot of the computer.


Interruptions to the system A high CPU utilisation can be caused by a number of different things. You must appropriately identify the source of the issue. Go through the guide carefully, because even a minor error can have a major impact.

Disabling hardware and software should be done with caution. If the adjustments you made didn’t fix the problem, be sure to reverse them. We really hope that this article helped you resolve the System Interrupts High CPU Usage problem.