Im having trouble with my Dell Notebook. It's been randomly slowing down, jerky performance, unresponsive UI, etc, for long periods, then seemingly without warning will suddenly begin to work snappily. This is seemingly independent of how many and what types of program/processes are open.
Restarting does not fix the problem, if the computer was going slow, it continues to go slow, if it was snappy, it continues to be snappy.
It seems to be relate to CPU usage, as times when the computer are snappy, the CPU usage is typically very low, and vice versa. However, as Istated, it doesn't seem to be any particualr program which is hogging the cpu, its more OS dependent processes which seem to be using most of the CPU, normal like notepad can take up an incredible amount of CPU at these "slow" times as well.
I'm wondering about the possible problems that could cause this, how to diagnose which it is, and then how to go about fixing it.