This has been an ongoing problem for a long time with me. It used to be with my main Hard Drive, where every once in a while, not sure why, but the CPU usage will start spiking to 100% when I access an application, media files seem choppy and slow sounding, decompressing zip and rar files takes almost 3 times as long as normal, etc. I used to do a System restore, and this would fix it. Then a month later it would happen again. Then I found a DELL fix that fixes it, and the problem eventually still persisted. I have taken all the spyware precautions, and still have found no cure.
Recently I installed a secondary Hard Drive, having both set to Cable Select. Now the problem only seems to happen on the secondary Hard Drive. I tried accessing a media file from my F: drive (secondary), and it seemed choppy, skips, and sometimes slow motion like. Then I tried accessing the same media file on C: drive (primary), and the file played perfectly.
If anyone could shed light on what would be causing this, I would be greatly appreciate it. This problem has plagued me since I purchased my DELL. Thanks.