Win 10 System Interrupts Too High

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System Interrupts are constantly in the range 7.8% to 15%. This is too high. My other computers have much lower numbers, and they idle overall at 1% – 2% cpu usage which is fine.

This problem is on my ACER laptop running Windows 10 Home 64-bit v. 1903. It doesn’t get used very often. This morning I noticed the high-ish S.I. amount, but it may have been there a while, not sure.

Ran a few tests including:

Malwarebytes full scan (no problems found).

DISM Restore Health (no problems found).

SFC / Scannow (no problems found).

Device Manager looks OK, too.

Any suggestions on how to get the System Interrupt % and overall idle cpu usage down to the usual level of 1% or 2%, please?

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Is Windows installed on a HDD or SSD ?
If on HDD it maybe time to switch to SSD.

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An interrupt is generated when your hardware wants the CPU to do something.
High interrupts means some hardware is either faulty or the driver is flakey.
Disconnect any hardware you don’t require.
Check that your device drivers are up to date.

More suggestions in this thread.

cheers, Paul

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wavy

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