Re: 99-100% Explorer Processor Usage

Comparing two incidents of the 99-100% persistent processor usage, the
following processes are common:

1. hkcmd.exe
2. ACIntUsr.EXE
3. PccNTMon.exe
4. OSA.EXE

brayogee wrote:
Yes.
The following processes are pegged to it:

hkcmd.exe
ACIntUsr.EXE
PccNTMon.exe
qttask.exe
internat.exe
OSA.EXE
Winword.exe
procexp.exe

The tool expressly indicates the 'parent'/root 'Windows Explorer' is
running at 100% CPU usage not any of the 'child' processes in the
hierachy.

JS wrote:
When running Process Explorer the first column is labeled 'Process', in this
column you will find a process named Explorer.
Did you click on the + symbol to the left of Explorer to list what running
under this?

JS

"brayogee" <brayogee@xxxxxxxxx> wrote in message
news:1152701428.434918.135000@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
The process that runs at 100% is 'explorer.exe' and is represented as
follows:

Process - explorer.exe
PID - 1564
CPU - 100.00
Description - Windows Explorer
Company Name - Microsoft Corporation

Right clicking the selected process and selecting 'google' takes one to
the following link:
www.google.com/search?q=explorer.exe

This turns out to be general details about 'Windows Explorer' but
nothing specific in regards to what is causing the 99-100% processor
usage.

Is there more to how one can use this tool to identify what is causing
Windows Explorer consume 99-100% CPU usage?

brayogee wrote:
Cool. Will update with info once received on the 99-100% CPU usage
scenario for the benefit of all.

JS wrote:
Click on the process that running at 99%, once it highlighted, right
click
and from the options listed select: google
This should display what out there on the web about the process.

JS

"brayogee" <brayogee@xxxxxxxxx> wrote in message
news:1152529978.981133.123170@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Thanks.

Looking at screenshots when the reported problem occurs, the
application runs as a single separate process whose CPU usage and
memory consumption is normal. The abnormality lies on the separate
explorer.exe process which consumes 99-100% CPU.

Query: Using this tool, in a Treeview format view and the listing off
explorer.exe, how can one know exactly which application is making
Windows Explorer misbehave?

JS wrote:
You need to find the specific process in that custom app that's
taking
all
the CPU resources.
Try Process Explorer:
http://www.sysinternals.com/Utilities/ProcessExplorer.html

JS

"brayogee" <brayogee@xxxxxxxxx> wrote in message
news:1152375319.524422.117950@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi,
Have a problem where computers running a custom application are
experiencing machine freezes with Explorer.exe running at 99-100%
CPU
usage for extended periods.This renders the custom application
unusable.

The workaround is to kill the explorer.exe process or reboot the
machine. This incidents seem to be of a random nature and occur on
multiple PCs. The OS's on this PCs are Win2K and WinXP SP2.

Following is a list of findings so far as to the possible causes
of
this problem. None of them seems to have eliminated the incidents
I'm
reporting:-

1. Hardware device or undetected hardware problems e.g. USB
devices
2. Presence of a virus which takes on the form of explorer
Ref: http://www.computing.net/security/wwwboard/forum/14619.html

3. Bugs with anti-virus programme updates like
OfficeScan/TrendMicro
e.g. Ref:
http://esupport.trendmicro.com/support/viewxml.do?ContentID=en-124264

4. Presence of a corrupt AVI file on the server or client PC(s)
Ref: http://www.beyond3d.com/forum/archive/index.php/t-8540.html

5. A bug with Microsoft products where Explorer.exe uses 100
Percent of
the CPU When You Right-Click an Item in Windows Explorer.
Ref: http://support.microsoft.com/?kbid=837115

6. A bug with Microsoft products where Windows Stops Responding
When
You Click a Large AVI File in Windows Explorer.
Ref:
http://support.microsoft.com/default.aspx?scid=kb;en-us;822430&Product=winxp

Is there anyone else who has experienced their Windows Explorer
running
at 99-100% CPU usage? If so, what measure(s) were successfully
undertaken to address this?

As I look deeper into this issue, I'd appreciate any further
information based on your experiences with this issue.

Thank you.




.

Relevant Pages

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