My computer has been acting a little wonky today (it's been running a little slow), so I decided to open up the task manager to look at CPU usage.
Why does the top CPU usage not add up to the total at the bottom? I've never seen this happen before, and it leads me to suspect a process is hiding itself.
Any thoughts? Is there a command to get CPU usage of all processes in a list much like the task manager from the command line (since user-mode hooks/rootkits don't generally hook console applications)?