I have a PC on one of my benches that has unholy high CPU usages in SVCHOST.exe (system-the higher of the 2 by MEM usage), I have investigated all of the systems listed in it in the registry, nothing odd at all with any of them. You can watch the CPU usage spike to 95-100% every 10 or 12 seconds like it is searching for something that needs to be connected. I have eliminated hardware, as I have done a fresh load to a new HDD and it does not have this problem, with that install. In safe mode it does the same thing, I have scanned it with Norton 2002 and online with TrendMicro, and both show clean.
-Mat
-Mat