There is one client machine that has processing issues. I can't find driver updates that look like they fix this.
And we have other machines with similar software setups that are working fine. (Windows XP SP3)
I can duplicate the issue by doing the following. Open any program that hasn't been opened in a while (so it's not in memory anywhere, for example Photoshop)
What happens is that all other processing on the machine slows to a crawl. And the application takes a long time to open. (same with the bootup time for the machine, it's abnormally long)
And working with the application is very unresponsive for a few minutes.
The funny thing is that you can listen to the computer process when you have music on (any program) since the music stops and stutters in line with the processing the computer is doing.
We have Sophos as the virus scanner and we have tried defragging the machine with jkdefrag, cleaning up and temp files, deleting any unused programs and dust cleaning the computer.
I don't wanna format just yet if it's something known.
Turning off the Sophos services did nothing.
I tried perfmon and what happens is I get spikes on Pages/sec and Disk queue length where disc queue length stays well over 100% for the whole time and Pages/sec goes well over that.
I'm going to look at the Dell diagnostics next.