I watched through Process Explorer as it took about 10 minutes to login, boot up, do the usual Windows thing. I've had it for a > year so it just seems to be slow on startup. I think that's common. I mean, every PC i know gets slower after about 6 months. this one is no different.
When i boot on the home WiFi network, it seems fine initially but after about 20 minutes it get really clogged. A check in Process Explorer shows a lot of activity with really excessive percentages. The CPU usage just climbs until it hits 100% and then it stays there. Even if I'm not doing anything or don't start any apps. It's like DPC's just get queued up and then the system slows down. Although DPCs don't seem to exceed 5% or so at any one time.
Any suggestions? I have no idea how to troubleshoot this.