It does not include deferred procedure calls DPCs , which are counted separately. This value is an indirect indicator of the activity of devices that generate interrupts, such as the system clock, the mouse, disk drivers, data communication lines, network interface cards, and other peripheral devices.
These devices normally interrupt the processor when they have completed a task or require attention. Normal thread execution is suspended. The system clock typically interrupts the processor every 10 milliseconds, creating a background of interrupt activity. This counter displays the difference between the values observed in the last two samples, divided by the duration of the sample interval. Start digging around for what could be causing the interrupts.
I would look at your disk subsystem first. I'm not sure where the threshold of came from. You also need to be looking at this over time.
A single high spike could mean nothing. A substain high value could indicate hardware issue. Office Office Exchange Server. However, the article from above stated that I could disable devices one by one and I may be able to find the offending driver or device.
At first glance, I figured this was definitely my issue. I reached out to one of my security peeps and they could not get the client disabled either; the remote console couldn't talk successfully to the client scanner. After some debate, I hypothesized that I had one of two possible scenarios going on:. Since I was getting a bit frustrated, I decided to go back to the idea of a faulty driver.
LatencyMon was reporting that my issue was a USB driver. I chose USB2 simply because it was different than the other controllers. I did some follow up tests re-enabling and disabling the Host Controller.
I could not get the high CPU condition to reproduce itself. I guess there was a hung process tied to that driver. I have 15 years experience with Windows. The fault is windows and don't get me on the part about security.
Malwarebytes does not find anything either. Plus all cards have been securely erased with Linux Terminal. I appreciate your efforts for trying to fix this issue. Let us try few more troubleshooting steps to fix this issue and check if that helps. If it still not working on follow the steps mentioned below:. Method 1 : Troubleshoot common USB problems. Refer the article on Troubleshoot common USB problems and follow the steps mentioned on the article and check if that helps.
Refer the article on Update drivers in Windows 10 and follow the steps mentioned in the article. If updating the driver does not work follow the steps to reinstall the driver from the article. Method 3 : Follow these steps to resolve SD card issues. Change the drive letter. Type diskmgmt. Assign a drive letter if not previously assigned or change the drive letter. Method 4 : If the card still not recognized check if the SD card is locked. Most of the SD card have a switch to lock the SD card, try switching the lock and check if that helps.
Old remedies do not work. This needs an update! Please help! Thanks Mr Bee. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. Previous Next. Hello, Thank you for writing to Microsoft Community Forums. How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site. Hello, Suggest you to run System File Checker scan: 1. Search for 'command prompt' using Cortana or Windows Search.
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