System interruption of high CPU usage is usually caused by driver problems or hardware conflicts. Solutions include: 1. Update drivers such as motherboard, sound cards, network cards; 2. Disable unused external devices or built-in modules; 3. Adjust power management and IRQ settings in BIOS; 4. Use resource monitor to locate problem drivers. In most cases, the problem can be alleviated by updating the driver or disconnecting the suspicious device. If it is invalid, consider reinstalling the system.

System Interrupts occupies high CPUs a common problem for Windows users, especially when using older hardware or drivers are incompatible. It itself is the mechanism by which the system handles hardware requests, but an exceptionally high occupancy usually means something wrong with a hardware or driver.

Check and update the driver

In most cases, "system interruption" high CPU usage is caused by outdated or damaged drivers, especially integrated devices such as motherboards, sound cards, network cards, etc.

• Open "Device Manager" to check whether there are devices with yellow exclamation marks one by one
• Right-click to select "Update Driver" and prioritize downloading the latest version from the official website
• Pay special attention to updating the drivers of chipsets, audio controllers and network adapters
• You can also use some trusted driver update tools to assist in troubleshooting

Some motherboard BIOS settings may also cause such problems. It is recommended to check whether it is the latest version.

Disable unnecessary hardware devices

If you have external devices that are not used for the time being, such as USB sound cards, Bluetooth adapters, card readers, etc., try unplugging them to see if there is any improvement.

• Enter the "Device Manager" and find the relevant device
• Right-click to select "Disable Device" instead of uninstall, for subsequent recovery
• Especially some old USB devices and non-mainstream brand accessories are prone to conflict

If the infrared and fingerprint recognition modules that come with some laptops are not available, you can also try to turn them off.

Check power management and IRQ settings (advanced)

Windows' power management sometimes delays certain hardware interrupts, which in turn leads to increased CPU usage.

• Open a command prompt (administrator), run powercfg -devicequery wake_from_any to see which devices can wake up the system
• If you find uncommonly used devices, you can disable wakeup permission through powercfg -devicedisablewake "設(shè)備名稱"

For users familiar with hardware settings:

• Go to BIOS/UEFI and find the IRQ configuration in "Advanced Settings"
• Try to enable the "APIC Mode" or "Legacy PIC" toggle, the options may be different from the motherboard
• It is not recommended that ordinary users make changes at will. It is best to check the motherboard manual before operation.

Use Resource Monitor to further diagnose

Open Task Manager -> Performance tab -> Bottom "Open Resource Monitor" -> Switch to the "CPU" tab.

• Observe the process ID (PID) next to "System Interrupt"
• Search for this PID in "Associated Handle" to see which devices or drivers are involved
• If you see a driver file appear frequently, it may be the source of the problem

Although this method cannot directly solve the problem, it can help you locate which hardware or driver has problems.

Basically these commonly used methods. In most cases, the problem can be alleviated by updating the driver or disconnecting suspicious devices. If you really can't handle it, reinstalling the system is sometimes easier than repeatedly tossing.

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