- #36
meBigGuy
Gold Member
- 2,325
- 406
It does sound like something is affecting Explorer (the file explorer window).
20% CPU is very high when you are not doing anything. Something is not right. Right now my CPU is at 1% peaking to 5% and I'm running a bunch of small background things (a few widgets, a sensor monitoring program, and typing this).
Open the Task Manager. In the task manager there are several tabs.
1. Click Performance. it shows CPU% and Memory Usage (Memory usage is not in % in my machine)
Verify it shows 20% CPU usage and tell me what it says for Physical Memory (Total, Cached, Available, and Free)
You can click Resource Monitor at the bottom, and get more detailed views of what is happening in your machine, but we will do that later
2. Click the Processes Tab
Click the CPU column such that maximum CPU usage is at the top. What are the processes consuming CPU, and how much.
(look at this when there is not a problem, when you open a file, and when there is a problem)
(for me right now it is Idle 99% and every once in a while firefox hits 2%, perfmon hits 1%. If I move my mouse between windows, taskmgr hits 2%)
Click on the memory column and see what programs are consuming the most memory. For me, for example, it is firefox, svhost, sidebar, explorer, svhost(net) and so on.
3. Since you have an SSD, maybe there is massive SSD activity and you can't see it (is there a light for SSD accesses?)
IF you go back to the Performance Tab and click "Resource Monitor" you can click Disk and see what is accessing the disk(s) if anything.
(I use resource monitor whenever my disk starts doing strange things and I don't know why. It's usually my Anti-virus, or something auto-updating or some program optimizing its database)
Did you try shutting down Norton's real time protection (or better yet, uninstall it as an experiment)? Norton could easily be the cause of this. Try reading the Norton event logs and see if there is anything strange there.
20% CPU is very high when you are not doing anything. Something is not right. Right now my CPU is at 1% peaking to 5% and I'm running a bunch of small background things (a few widgets, a sensor monitoring program, and typing this).
Open the Task Manager. In the task manager there are several tabs.
1. Click Performance. it shows CPU% and Memory Usage (Memory usage is not in % in my machine)
Verify it shows 20% CPU usage and tell me what it says for Physical Memory (Total, Cached, Available, and Free)
You can click Resource Monitor at the bottom, and get more detailed views of what is happening in your machine, but we will do that later
2. Click the Processes Tab
Click the CPU column such that maximum CPU usage is at the top. What are the processes consuming CPU, and how much.
(look at this when there is not a problem, when you open a file, and when there is a problem)
(for me right now it is Idle 99% and every once in a while firefox hits 2%, perfmon hits 1%. If I move my mouse between windows, taskmgr hits 2%)
Click on the memory column and see what programs are consuming the most memory. For me, for example, it is firefox, svhost, sidebar, explorer, svhost(net) and so on.
3. Since you have an SSD, maybe there is massive SSD activity and you can't see it (is there a light for SSD accesses?)
IF you go back to the Performance Tab and click "Resource Monitor" you can click Disk and see what is accessing the disk(s) if anything.
(I use resource monitor whenever my disk starts doing strange things and I don't know why. It's usually my Anti-virus, or something auto-updating or some program optimizing its database)
Did you try shutting down Norton's real time protection (or better yet, uninstall it as an experiment)? Norton could easily be the cause of this. Try reading the Norton event logs and see if there is anything strange there.