High CPU and disk utilization slows down the response

Two years, Pavilion dv7 - 2273ca running Windows 7 64-bit; Norton 360; IE8; Thunderbird; Microsoft Office 2007.  Tend to have several windows open at the same time.  For automatic updates

Almost every day the laptop enters a period of very high CPU usage; often accompanied by high disk usage.  The response time of the laptop is compromised to the point that I often have to stop using it until activity slows.  I try to use the resource monitor, but do not know enough to say if the legitimate operations or something wrong.  Norton frequently shows svchost.exe and iexplore.exe as a heavy user of the CPU.

Is this a normal behavior?  If not - any advice on how to identify the culprit?

On the advice of a HP technician, I ran check disk, and then restore the system in August.  end hard drive.  System Restore did not difference in performance.

Most of the processor have more of the base, there will be a CPU 0 and 1 for the dual core processors. Different colors are different carrots 0 and 1

If you sort as I proposed that the highest CPU usage will float to the top, you have to watch it when your cpu pork starts to act up.

The colors of disc are reading and writing, its hard disk is read or write data on the trays.

A high utilization of the processor or disk can be considered normal at times, but should not go on constantly.and by dragging down the performance of the system

Lets say you run a video in your browser, the CPU usage rises, running other programs can do the same thing.

The disk activity can be high at times also, depends on what you do on the PC, but shouldn't be high all the time.

http://www.TechRepublic.com/blog/window-on-Windows/learn-how-to-use-the-Windows-7-resource-monitor-for-effective-troubleshooting/3139

http://www.PCWorld.com/article/241677/how_to_use_resource_monitor.html

Tags: Notebooks

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