Rundll32.exe is to consume a quantity of cash out of memory.

I had a Dell laptop for three years which is under Vista Home Premium (32-bit version), and it works more slowly than the molasses for several months now.  When you view the Windows Task Manager, I see that there are often four versions of rundll32.exe running with individual files sizes ranging from 150 to 680 MB, and that physical memory consumed is indicated as being from 86% to 97%.  Is it possible that this Windows file is corrupted?  It is downloadable from a safe site to replace my existing rundll32.exe file?

I had Microsoft Security Essentials antivirus running and I used the software of Malwarebytes' Anti-Malware, but none reported any virus or other infections.  I also run the disk cleanup and defragmentation of disk on a regular basis.

Thanks in advance for any thoughts on the subject.

Biggar Gordon

Houston, Texas

Hello

Check with Dell Support, their drivers and documentation online and ask in the forums about known issues.

Dell support
http://support.Dell.com/

Dell support drivers - product manual & warranty Info (left side) - and much more
http://support.Dell.com/support/index.aspx?c=us&l=en&s=DHS

Dell forums
http://en.community.Dell.com/forums/

----------------

What is rundll32.exe and why it works?
http://www.howtogeek.com/HOWTO/Windows-Vista/what-is-rundll32exe-and-why-is-it-running/

What is the suspicious Rundll32.exe process?
http://WindowsXP.MVPs.org/Rundll32.htm

-----------------------------------------------------

Try these to erase corruption and missing/damaged file system repair or replacement.

Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

sfc/scannow

How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe)
program generates in Windows Vista cbs.log
http://support.Microsoft.com/kb/928228

Then, run checkdisk - schedule it to run at next boot, then apply OK your way out, then restart.

How to run the check disk at startup in Vista
http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

-----------------------------------------------------

If no joy trying to determine what is the cause:

How to troubleshoot a problem by performing a clean boot in Windows Vista
http://support.Microsoft.com/kb/929135
How to troubleshoot performance issues in Windows Vista
http://support.Microsoft.com/kb/950685

Optimize the performance of Microsoft Windows Vista
http://support.Microsoft.com/kb/959062
To see everything that is in charge of startup - wait a few minutes without doing anything - then right
Click on taskbar - task manager - take a look at stored by - Services - process -.
It's a quick reference (if you have a small box left - show for all users, then
Check that).

How to check and change Vista startup programs
http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

A quick check to see who are loading is method 2 - using MSCONFIG then after a
a list of these here.
--------------------------------------------------------------------

Tools that should help you:

Objects of process Explorer - free - find out what files, registry keys and other processes
have open, which DLLs they have loaded and more. This exceptionally effective utility will be
even show you who owns each process.
http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

Autoruns - free - see what programs are configured so that it starts automatically when your
system boots and you log in. Autoruns is also the full list of registry and files
locations where applications can configure start automatic settings.
http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
Process Monitor - Free - monitor the system files, registry, process, thread and DLL activity
in real time.
http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

There are many excellent free tools from Sysinternals
http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

-Free - WhatsInStartUP this utility displays the list of all applications that are loaded
automatically when Windows starts. For each request, the following information
appears: product Type of startup (registry/Startup folder), Command - Line String,
Name, file Version, company name, location in the registry or the file system and more.
It allows you to easily disable or remove unwanted programs that run in your Windows
startup.
http://www.NirSoft.NET/utils/what_run_in_startup.html

There are many excellent free tools to NirSoft
http://www.NirSoft.NET/utils/index.html

Window Watcher - free - do you know what is running on your computer? Maybe not.
The window Watcher says it all, every window created by all programs that are running, the statement
If the window is visible or not.
http://www.KarenWare.com/PowerTools/ptwinwatch.asp

Many excellent free tools and an excellent newsletter at Karenware
http://www.KarenWare.com/

I hope this helps.

Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

Tags: Windows

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    http://OneCare.live.com/site/en-us/Center/cleanup.htm

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    Ajay K

    Microsoft Answers Support Engineer
    ---------------------------------------------------------------------------------------------------------
    Visit our Microsoft answers feedback Forum and let us know what you think.

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    If you see a message like this:

    Control Panel
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    This means that your system is currently or has been infected with malicious or all software you use antivirus/antimalware tools examined the file a threat and quarantined (effectively deleted) file.

    Provide information on your system, the better you can:

    What is your system brand and model?

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    Sinusoidal signals, we know nothing on your system, I have on my SkyDrive a copy of rundll32.exe file that comes from Windows XP Service Pack 3.

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    Here is the link to my SkyDrive and you can get the file you need here:

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    SUPERAntiSpyware: (SAS): http://www.superantispyware.com/
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    Hello

    Thanks for posting the request in the Microsoft community forums!
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    You did changes to the computer before the show?

    This problem occurs because of a missing or corrupted Rundll32.exe file. This problem can also be caused by a virus. Then you can try the solutions and check.

    Method 1:
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    Cannot find the Rundll32.exe file when you open Control Panel
    http://support.Microsoft.com/kb/812340

    Method 2:
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    Hello

    (1) what exactly happens when you try to open Control Panel?
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    This problem occurs because of a missing or corrupted Rundll32.exe file. This problem can also be caused by a virus.

    Method 1:
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    http://support.Microsoft.com/kb/812340

    Method 2:
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  • Miss me the windows system32 rundll32.exe. I can't access the Add/Remove in the control panel.

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    I tried to start - run with my c/d operating system

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    Now that the devil do?

    Thank you

    If this

    I tried to start - run with my c/d operating system

    means that you have tried to use sfc/scannow from start > run, your experience is not surprising.  This 'solution' is often suggested by people who don't really understand what this command does.  It does not help to restore a missing rundll32.exe file.

    For what is

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    What probably happened is that your antivirus application deleted or quarantined in your file rundll32.exe thinking he was infected.  He could have, but probably not.  In any case, read the post that begins, "That 'solution' is not on my list." in the following thread: http://answers.microsoft.com/en-us/windows/forum/windows_xp-performance/systemrundllexe-not-found/6e30aff2-a88e-4d86-a654-753d54f632d1 you can also read the rest of the posts in this thread.

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    Assuming you manage to restore rundll32.exe, download, install, update and run full scans (not at the same time) with each of the following free tools.

    MalwareBytes AntiMalware
    SUPERAntiSpyware

  • On the computer of the opening, this message: c:\windows\system32\rundll32.exe.

    I searched the drivers and utilities cd that came w/my computer and the operating system cd and do not find this file there.  Don't know what to do from this point on.  Cannot remove programs without this file.  Thanks for any help!

    When you try to open a control panel applet, you see a message like this:

    Control Panel
    Windows cannot find 'C:\WINDOWS\system32\rundll32.exe '.  Make sure you typed the name correctly and then try again.  To search for a file, click the Start button, and then click search.

    If the file is actually missing, it was probably quarantined (actually deleted) by some program antivirus or antimalware you use.

    You might want to reconsider some anti-virus or anti-malware software, you use and whether or not they are effective to protect your system.

    You can look in the c:\windows\system32 folder and see if the file is actually missing or not, but if it is really missing, you must replace it somehow.

    Since the file is one of the protected files 3498 who cares about XP, needed a backup copy of the file on your system in a few other cases.  You must do what the message says and search for the file.

    Click Start, search, for files and folders... and in the search box, enter:

    Rundll32.exe

    The click the search button to search for you the hard drive for a copy of the missing file.

    You can find a copy of the file that is missing in these folders:

    c:\Windows\System32\dllcache
    c:\windows\ServicePackFiles\i386

    If you find a copy in one of these two files, copy and paste it in the c:\windows\system32 folder.  There may be other files rundll32.exe on your system of MS updates, but they can only be those you need (they could work maybe).

    Answered in the affirmative if invited to replace the existing file.

    If you cannot find a copy of the file in one of these two places, there is one on my SkyDrive, you can download.  Here's how:

    I downloaded a copy of XP Pro SP3 file you need on my SkyDrive (everyone has a SkyDrive for file sharing).

    You can download it and when you do, place a copy of the file in these two folders (assuming that Windows is installed on your C drive):

    c:\Windows\System32
    c:\Windows\System32\dllcache (this is where XP keeps backups of important files).

    Here is the link to my SkyDrive and you can get the file you need here:
    https://SkyDrive.live.com/?CID=6a7e789cab1d6f39&ID=6A7E789CAB1D6F39! 311

    When you see the files available for download, you can not see the file extension (.exe, .dll, .cpl, .sys, .zip, etc.), but when download you them they will have the right extension.

    When you download the file (especially if you use Internet Explorer), when you get a chance to save the file, your browser is unable to save the file with an extension (by example, .exe, .dll, .cpl, .sys, .zip, etc) then you will need to manually add the extension appropriate to the file when you download the file before you save it.

    You can download the file without the extension, and then rename the file to add the appropriate extension.  You do not want to use a file called rundll32 when the name of the file should really be called rundll32.exe (if the downloaded file has no extension, you will need to change the name of the file to add the appropriate extension to make it work.

    You then put the downloaded files in the correct folders on your system.

    Note that advice to run sfc/scannow will not replace a file rundll32.exe missing in the system32 folder.  If you need to prove that to yourself, I also have instructions for it.

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