Vista - Excessive CPU Loading Due to Windows Explorer

My computer experiences frequent periods of 100 percent CPU loading caused
by explorer.exe. .This is with only one or two windows open.

I am running Vista Ultimate 32-bit, SP1 on a Presario SR 1750NX with 64-bit
processor 2.2 GHz on a 100 GB partition with 3.5GB of RAM and 200GB and
300GB hard drives with an upgraded video card. The computer runs Aero fine.

I am using NOD32 Antivirus. Running a registry cleaner sometimes produces a
short term reduction in CPU loading.

The condition has become worse over time. Anyone know how to fix.

Maybe reduce the size of your "my documents" folder?

If it's the windows file explorer you mean.

Curt

"CharlieRJ" <CharlieRJ@xxxxxx> wrote in message
news:O%23XFhBXWIHA.1208@xxxxxx

Curt,

Thank you for the quick response. It happens for folders that have dozen
subfolders and as small as 2GB. Also, it happened for Power Point Briefings
that ranged from 2MB to 7MB.

It seems to have cleared up this afternoon.

Yesterday, I noticed that I had only three Restore Points, so I expanded Max
size of my C-Drive Shadow Volume Storage to 15 GB to take advantage of
expanding the partition to 100GB. I also turned off a few visual effect,
although I left Aero turned on along with file icons.

Also, now that I think of it, I just got through adding a second 300 GB hard
drive and moved 200 GB of files from various internal hard drive partitions
and external USB drives to the new hard drive. The system may have been busy
trying to index all of the new locations. I did try changing the index
settings, but I am not sure what the correct settings are. I suspect, I
should have it index from scratch since 200GB of files are in new locations.

Thank you again for you helpfulness in responding so quickly.

"Curt" <cdlevin@xxxxxx> wrote in message
news:C3DA9D90-0F4B-42C5-B7DA-D5532FC03AD8@xxxxxx

Today the problem returned and I did not change anything. Anyone have a
solution.

"CharlieRJ" <CharlieRJ@xxxxxx> wrote in message
news:61BE44BF-688D-41E3-BC75-E3F848CCC4FF@xxxxxx

CharlieRJ wrote:If you are using NOD32 3.0 you might wanna uninstall that and use NOD32
2.70.39 instead
http://www.eset.com/download/registered_software.php

Hello CharlieRJ,

Thank you for your post.

From the post, I understand that the problem to be: There is a high CPU
utilization of Explorer.exe in the System process. If I have misunderstood
your concern, please let me know.

As for this high CPU utilization issue, we generally need to analyze the
performance monitor logs and memory dump files to locate the root cause.
Unfortunately, debugging is beyond what we can do in the newsgroups because
of the nature of newsgroup support. A support call to our product service
team is needed for the debugging service. I'd like to recommend that you
contact Microsoft Customer Support Service (CSS) for assistance so that
this problem can be resolved efficiently. To obtain the phone numbers for
specific technology request please take a look at the web site listed below:
http://support.microsoft.com/default...S;PHONENUMBERS

If you are outside the US please see:
http://support.microsoft.com for regional support phone numbers.

Having said that, I'd still like to provide the following general
troubleshooting steps to see if we can eliminate this problem:

Note: Please perform a complete system backup first. If any unexpected
issue occurs, we can quickly restore the system to the current status.

A. Scan your system to make sure that the system is virus free. Temporarily
disable your anti-virus software to see if this problem is gone.

You may need to upgrade your anti-virus software as Forty-nine mentioned
and some other worm or Trojan horse specific anti-virus tools to scan your
system.

B. If you have recently installed any software, hardware or drivers, please
remove them.

C. Disable all the third party startup programs and services by using the
MSConfig.exe utility shipped with Windows Vista. To use this tool, you can
refer to the following Microsoft Knowledge Base article:

How to perform a clean boot procedure to prevent background programs from
interfering with a game or a program that you currently use:
http://support.microsoft.com/kb/331796/en-us

1) Run MSCONFIG.EXE.

2) In the Services tab, click "Hide All Microsoft Services" and click
"Disable All".

3) In the Startup tab, click "Disable All". Click OK. (This will
temporarily prevent third-party programs from running automatically during
start-up.)

4) Restart the computer and keep monitoring it. Does the problem still
persist?

If the problem does not occur, it indicates that the problem is related to
one application or service we have disabled. You may use the MSCONFIG tool
again to re-enable the disabled item one by one to find out the culprit.

However, if the issue still persists, please contact Microsoft Customer
Support Service (CSS) for further troubleshooting. I hope the problem will
be resolved soon. Thanks!

Sincerely,
George Yin
Microsoft Online Support
Microsoft Global Technical Support Center

Get Secure! - www.microsoft.com/security
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George,

Thank you for your help. I tried the different version of NOD 32 and it did
not help. I uninstalled it and installed the Avast free version and it said
it found two viruses during its initial boot scan and they were moved to a
vault. CNET readers rated Avast as being easy on system resources.

I used the Microsoft complete system backup and I will now try your
suggestions. If that does not work, I will contact Microsoft Support. I
believe that I have a month of free support left on my initial Vista
Ultimate installation/first support request plus my my two TechNet
subscription support incidents.


CharlieRJ

"George Yin(MSFT)" <v-chanyin@xxxxxx> wrote in message
news:q9TOASCXIHA.4720@xxxxxx

Dear CharlieRJ,

Thanks for the reply and I hope everything goes well. Please feel free to
let me know if there is anything else I can do to help.

Thank you and have a nice day!

Sincerely,
George Yin
Microsoft Online Support
Microsoft Global Technical Support Center

Get Secure! - www.microsoft.com/security
=====================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
=====================================================
This posting is provided "AS IS" with no warranties, and confers no rights.