I recently had my system Process running very high. It was taking between 60 - 80% of my processing power.
I installed process explorer and so i was able to dbl click the system process to see which threads were causing the problem. I found that it was ACPI.sys that was causing me grief. Through Process explorer you are able to suspend the thread which i did and found that i had no more problems. CPU instantly dropped to around 2%.
I have not installed anything recently nor have changed anything. There was a micosoft update from what i can see but thats it.
Last night i decided to restart my server as i had the need to and completely forgot about this Process and so naturally it tried to restart but it seemed to have frozen. CPU must have reached 100% and stayed there.
I came in this morning and had to restart again. It took a long time to reboot and cutting a long story short i stopped the ACPI.sys thread and it was running better. Today however everything is not running perfectly as i am seeing the CPU jumping all over the place and at times reaching 100%. Even after aplying my quick fix.
Now after a little research i found the location to be c:\windows\system32\drivers\acpi.sys. I read some forums saying this can be deleted and other saying no. I renamed the file to .old and saw that the system just created a new one.
Does anyone know what i should do. Is there a patch for this. Is anyone else having this problem. I seemed to have identified the source but not sure what i need to do with it. I am not even completely sure if it was the microsoft update. how can i check and see the latest update. Is this through add/remove programs and then do a search on the KB....
Also just to eliminate spyware as a possible course. I ran 5 scans using different well recognised programs and they all reported no spyware
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