Can Latency cause High System Interrupts?

Melody Scott
Melody Scott used Ask the Experts™
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My laptop (New, HP, Windows 10):
laptop.JPG
Has been slow and bogged down frequently. When I open task manager, I see 90% CPU, system interrupts is most of it. If it's important, usually once I open task manager, the CPU usage drops rapidly.

I've done these things:

1.  Disable USB Root Hubs one by one. No change
2. Reboot into safe mode. No change
3. Disable your network adapters. No change.
4. Disable wireless altogether. No change.

I was looking at this page: https://superuser.com/questions/1378289/system-interrupts-process-using-high-cpu  and I've downloaded and run LatencyMon. I'm not sure if the Directx Graphics kernel is running high or not, I'm not sure what's normal. This is after a about a minute.

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JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
If it is truly new, contact HP Support.

Things you did 1 to 4 should not be necessary on any new PC.  

Ask HP what they installed and what you might uninstall.

Also, if very new, it may be updating Windows and that will slow the computer down until complete.

Start, Settings, Update and Security and see if Updates are running.
Distinguished Expert 2018

Commented:
Look at your services, and stop Superfetch. See what happens. Also try using the Windows Defender instead of the preinstalled antivirus software.

Author

Commented:
Sorry, forgot to mention I checked updates, none running. There may be other things i've tried and forgotten about, apologize in advance for that.

Purchased April 9, 2019. I've been putting off contacting HP because I bought it here in Mexico and my Spanish is only so-so, but I'll give it a try.

Superfetch isn't one of the services running. Thanks, all.

superfetch.JPG
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Business Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018
Commented:
At this point, either consider imaging the computer with the HP recovery USB or else run the HP hardware tests and then contact HP. If no hardware failure, they will suggest reimaging.

Author

Commented:
You are assuming I have an HP recovery USB. :) Ok, thanks, I have found a contact at HP Mexico who speaks English, so I'll call them later today and let you know how this goes.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
They will send you the recovery USB or show you how to make one from their site when you call.  I was not assuming you had one right there, but it is easy to make one from the HP Site.

Author

Commented:
ok, thanks!

Author

Commented:
Hi, They tested the hardware, updated the BIOS, and I was able to update to windows 1903. The laptop seems faster, so I guess I'll ignore the 90% CPU issue, as it falls as soon as I open TM. Thanks for the advice, and boy am I glad HP Mexico has English speaking techs.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Thanks for the update and I was happy to help you.

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