Excessive Hardware Interrupts When System Not Idle

Hi all,
I have had a problem with Hardware Interrupts using a large portion of my CPU usage. I noticed it about a year ago.
It has gotten worse and worse to the point now where my system just crawls when trying to perform any task. I have not installed anything new in a year and have always had an ext. hdd, a p/s 2 port wireless mouse/keyboard and a USB wireless mouse/keyboard
Sys stats:
XP Home ed (SP2)
Intel(R)
Pentium(R)D CPU 2.66GHz
1GB of RAM
Any other info needed just ask

Thanks in advance
10 answers Last reply
More about excessive hardware interrupts system idle
  1. Maybe a reinstall might help.
  2. LOL probably, of what though?
  3. Windows. Should get rid of any clutter/viruses.
  4. amdfangirl said:
    Windows. Should get rid of any clutter/viruses.



    I would prefer if I can isolate the problem before jumping to a drastic measure such as a complete format
  5. Just remove any crap you have.

    Just see what CCleaner can do. It removes temporary files and might speed stuff up.

    Make sure your Anti-virus is up to date.
  6. amdfangirl said:
    Just remove any crap you have.

    Just see what CCleaner can do. It removes temporary files and might speed stuff up.

    Make sure your Anti-virus is up to date.



    Anti-virus is updated daily.

    I've run ccleaner and it cleared some crap but the interrupts are still there in full force.

    Any other suggestions? I sooo dont want to have to format :sweat:
  7. try a second windows install to a blank hard drive(or partition) if you have one to see if that fixes the problem.

    what exactly is the problem

    "hardware interrupts" is kinda generic and non-descriptive.
  8. rand_79 said:
    try a second windows install to a blank hard drive(or partition) if you have one to see if that fixes the problem.

    what exactly is the problem

    "hardware interrupts" is kinda generic and non-descriptive.


    Okay rand_79 I've never done it before but I'll try the second window installation.

    Does it have to be a completely blank partition or drive? and how would I choose which windows installation I want to load up?
  9. well ideally you would disconnect your current drive and do a fresh install.

    if you dont . it will put a bootloader and a menu at the beginning to load windows.

    Can you describe the problem any better.
    I'm sure while you are thinking its descriptive, since we cant read your mind
    its not really that informative.

    I recommended a fresh windows install because
    if you still have a problem after this its a hardware problem
    not a windows problem.

    If you dont have a problem.. then it was a software problem
  10. Okay thanks for the info on the bootloader rand_79.
    So by fresh install you mean format and reinstall windows without the Ext HDD or just install another windows without the Ext HDD?

    Ill try to be more descriptive and if theres any specific info you need to know just tell me.

    Like I said the interrupts started to appear about a year back when I would do pretty much anything, from open/max/min/close windows explorer or internet explorer to copying and pasting, to watching a movie.
    Once the program has done what I ask it the interrupts settle down until the next command I give. I dont know what is interrupting what all I can see is "hardware interrupts" using most of my CPU usage in Process Explorer.

    I'm not sure if this could have anything to do with it but the RAM on my computer died a couple months ago (July 09) and when I replaced them with 2, One Gigabyte sticks it only reads as One Gig total RAM. They are within my Mother boards specs.

    Hope this has made some sense.
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