How do I trouble shoot speed problems

I have a Dell computer (see attachment for the processor data) I've been trouble shooting for weeks using Process Explorer.   The HDD is only a few months old.  I'm running Win7.   Norton 360 is installed.
The problem is the mouse hangs for 2-5 seconds and makes it impossible to work.  I've watched Process Explorer for hours and don't really see anything obvious.  IE does use 17-20% of teh CPU on a regular bases.  After I post this I'm going to remove 4 gig of my memory.  I was told that is a possibility.  Then I'll do a check disk and defrag.  
Any other steps would be appreciate.  Points are high because I need to try and fix it before I do a rebuild.

Thanks
jrprocessor.png
J.R. SitmanIT DirectorAsked:
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GiladnCommented:
did you do a virus scan, it sound like a hdd bad sector (check event log for warnings) or a maleware/logger installed on your computer.
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web_trackerComputer Service TechnicianCommented:
If you decide to rebuild, I would install a 64 bit operating system, then it would operate faster because the system is working on 64 bits of data at one time instead of 32 bits, as well the system will recognize and use the 8 gb of ram you installed. I find that Norton 360 is a resource hog and I would unistall it. Comparing two siimilar computers, the computer with norton 360 will be significantly slower than the other pc. Either that you can turn off some of the features of 360 as they do not really need to be running in the background as they take up system resources. If you decide to unistall norton 360, you can install Microsoft Security Essentials, it is free, it does a good job of protecting your computer, and it uses up little system resources. I use it on all my home and business computers, and also install it on my clients machines and they seem to be happy with it.
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web_trackerComputer Service TechnicianCommented:
You can probably use the same product key to activate the 64 bit os as the 32 bit os. As long as the install media is the same version... ie win 7 pro... win 7 home.... etc.
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willemjacobusvanzylCommented:
Hi there

I would suggest you install Windows 7.0 64bit, you will then be able to use all of your 8gb Ram.  

Secondly make sure that you have the correct and most up to date drivers for all your devices.  

You can also download memtest.  Boot with this disc and run memory, hdd ect diagnostics.  

Hope this helps.
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GiladnCommented:
what happens when you run a live cd (any os) does the mouse freeze?
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J.R. SitmanIT DirectorAuthor Commented:
I have licenses for Win7 64bit.  Don't I stand a risk of my programs not working with a 64bit OS?
@Giladn, not sure what you mean "run a live cd"
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GiladnCommented:
try ubunto live cd, you can boot your computer from the cd and see if the os runs fine.

http://www.ubuntu.com/download/ubuntu/download

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web_trackerComputer Service TechnicianCommented:
Most programs that work in 32 bit mode work fine in windows 64 bit, including microsoft office.  Giladn is asking to run your computer off the live cd to ensure that the problem of freeze up is not hardware related. When your computer using the umbuntu disc you are booting with an operating system that runs off of the cd, and not windows. Running the cd you can test to see if your memory or hard drive or if other hardware is causing your problems. If your system does not freezeup while using the ubuntu disc, you can know that the problem is probably not hardware related but something in your windows operating system is causing the slowdown hangups.
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J.R. SitmanIT DirectorAuthor Commented:
ok.  I'll download the live cd.  Please be patient, as I'm sure this post will go on for a few days.  I'm going to go through the steps slowly.  One thing I've noticed is removing the extra memory seems to have made a difference.  However, it's too early to be sure.
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GiladnCommented:
thank you web_tracker  for the clearance, I should have explained I just thought it was obvious..
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J.R. SitmanIT DirectorAuthor Commented:
How do I know if my Dell can run 64bit?
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web_trackerComputer Service TechnicianCommented:
Your system will have no problem running a 64 bit operating system. Just by looking at the stats you provided for your system. Usually if you can install more than 4 gb of ram in your system you can run a 64 bit operating system.
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J.R. SitmanIT DirectorAuthor Commented:
Great.  I'm still considering it.  I just installed the new drive and not looking forward to doing it all over, however, the SPEED you say I'll get is a big plus.
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nobusCommented:
you can also check if soluto helps  : http://www.soluto.com/
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J.R. SitmanIT DirectorAuthor Commented:
After removing the extra 4 gig I've not experienced the issue.  I'd like your opinion(s)
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nobusCommented:
are both sticks the same? ( removed vs installed)
you can also test the removed 4 GB alone
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web_trackerComputer Service TechnicianCommented:
Since the 32 bit operating system recognizes upto 3.5 gb of ram, when you had 8 gb some of the ram was not recognized, this could have caused your problem. The extra memory may have been used but windows thought it did not exist causing conflicts. If you want your system recognize more memory install the 64 bit operating system. Not only would the processing of 64 bits of data work faster, you would have more ram space available to work on more data.
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nobusCommented:
i doubt that - since the 8 GB was seen - but only 3 used...
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J.R. SitmanIT DirectorAuthor Commented:
Sorry I took so long to respond.  I rebuilt it with 64 bit and it is great now.
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