Intermittent 100% CPU load, slow down, can't find the cause

By the way, I have disabled all the non-Microsoft scheduled tasks in the Task Scheduler Library (see screen shot).

Just to add to something I mentioned in an earlier post:

The problem of 100% CPU often seems to be related to a legitimate task than suddenly starts receiving too much CPU time.

For example, earlier this evening I was running Chrome with ProcessExporeer and Windows Task Manager (Performance tab) running on another screen. Suddenly the CPU load went up to 100% in Win Task Manager and the CPU figure for Chrome in Process Explorer went shooting up to a high figure - one of the many Chrome Processes was at the top of the list. The machine slowed down, juddering cursor movement etc.

I went to the Processes Tab in Win Task manager and aborted all the Chrome processes and the CPU load then dropped down to a low figure - under 10%.

This happened to occur with Chrome this time, but I am pretty sure that I have seen it occur with other tasks or processes suddenly getting (or taking) an excessive amount of CPU resources when Chrome is not running. In other words, I don't think it is a problem with Chrome (though I am aware that it is a resource hog in normal use).

Something in Windows' system management seems to be sporadically boosting the CPu allocation to a running task or process, to the detriment of everything else - so I'm not sure that the problem is due to a rogue program or scheduled task (e.g. a program updater).

I'm a bit of a novice at this so I stand to be corrected - and any further help will be greatly appreciated as this problem is driving me a bit crazy.

Thanks
Paul

I don't know why people like Chrome. It loads at startup, has high resources consumption and spy everything you do.

As you have disabled all tasks, chrome won't load at startup. Try to use another browser (even MS IE) to see if you get the issue.

It still happens even when I'm using Firefox and not Chrome.


Is there a disgnostic tool which is better than ProcessExplorer or ProcessHacker which will give insight into what the CPU is busy doing?

Sorry, can't think anything else to do.

pmhutch said:

It still happens even when I'm using Firefox and not Chrome.

But did you uninstall Chrome?

Snick said:

Have you tried viewing running processes with
WinDirStat - Windows Directory Statistics

I use WinDirStat and as far as I know you can't see running processes with it. You're far better off with something like Process Explorer or Process Hacker.

Snick said:

Have you tried viewing running processes with
WinDirStat - Windows Directory Statistics

Echo? You made this post twice now.


Intermittent 100% CPU load, slow down, can't find the cause

Can you please run Autoruns again and post the ARN file.