TaskManager reports Win7 CPU usage = 15% after startup.....but process usage does not add up
Posted on 2015-02-11
Something (or a combination of things) is causing my PC to use 14-16% CPU usage upon start-up, without starting any browsers or other programs. This is reported by Windows Task Manager. I don't remember ever seeing it this high before, and as I remember it typically use to run around 2% after start-up.
I understand that any process that is running under 1% will be reported as 0% and its possible that there may be more than 20-30 or so process that may add up to 15%. Under Resource Manager, (which reports average CPU for "Services" under 1%) I see several services that together total about 0.1%.
I would expect if I'm running at 15% right from the start I would see at least several process running at 1% or more, yet I do not, EVERYTHING is reporting at 0%, except for processes "System" = 01 and "System Idle Process" = 97. I use to run "GNS3" a Cisco routing emulation program that has you calculate "idlePC" values to keep CPU usage down for each Cisco IOS that is running. I remember having up to 10 routers running with the CPU = 16%.
My question: Is there another windows utility that can report CPU usage more accurately? Also what is the best way to find the culprits? I believe I have most all unnecessary things disabled under msconfig/startup.
My PC is fairly powerful and has a Windows Experience Index of :
Processor = 7.6
Memory (RAM) = 7.7
Graphics = 6.8
Gaming graphics = 6.8
Primary Hard Disk = 7.6