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userdata.dll and logonui.exe

Posted on 2015-02-10
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Last Modified: 2015-02-11
I am running a relatively new Windows 7 64-bit computer.  For no apparent reason I've begun getting logonui.exe errors that claim there's a missing userdata.dll file.  This occurs whenever I shut down and boot up the computer.  The shut down or boot up processes hang until I acknowledge the message, though once I'm past it there does not appear to be an lingering effect.  Where does this message come from, and how can I get rid of it?

Thanks,

Phil
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Question by:philsimmons
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9 Comments
 
LVL 96

Expert Comment

by:Experienced Member
ID: 40602227
The first thing you do is Recover to a Prior Point. Action Center, Recovery options.

If that does not work, consider a Windows Startup Repair. See the Microsoft Support Article below.

http://windows.microsoft.com/en-CA/windows7/products/features/startup-repair
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LVL 8

Expert Comment

by:Shahnawaz Ahmed
ID: 40602232
philsimmons,

Please try to restore at earlier restore point as already suggested by John Hurst above.

If that doesn't work then you need to Repair from Windows Installation CD/DVD to extract logonUI.exe files.
steps are below.

Follow the steps below to properly perform System Repair in Windows 7/Vista:

    Restart your PC, Insert the Windows 7/Vista installation CD/DVD into the disk drive
    When prompted, press any key to boot from the inserted CD or DVD. Failing to do so will result in your system trying to boot to the operating system currently installed in your hard drive
    Choose the “Language to install”, “Time”, and “Keyboard or input method” according to your needs
    Click on “Repair your computer” located at the bottom left of your screen, and enter the “System Recovery Options” menu
    Choose the operating system you’d like to perform the Startup Repair on and click Next
    Locate and click “Startup Repair” from the list of options presented at the System Recovery Options.
    Wait for the system to locate for any missing or corrupted files
    Once completed, click “Finish” and reboot your PC for the Windows to properly execute the changes made

Please re-register userdata.dll from an elevated command prompt

 
  Click the Start button.
    Type "command" in the search box... DO NOT hit ENTER yet!
    While holding CTRL-Shift on your keyboard, hit ENTER.
    You will be prompted with a permission dialog box.
    Click Yes.
    Type the following command: regsvr32 /u userdata.dll.
    Hit ENTER. This will UN-REGISTER your file.
    Type the following command: regsvr32 /i userdata.dll.
    Hit ENTER. This will RE-REGISTER your file.
    Close the command prompt window.
    Re-start the program associated with userdata.dll error.

Quoted sections have been copied from another site. Thinkpads_User
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LVL 37

Expert Comment

by:bbao
ID: 40602242
if you believe the W7 was NEWLY installed, better double check to see if the installation media (DVD or ISO image) is in good condition without any reading error.
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Expert Comment

by:Shahnawaz Ahmed
ID: 40602243
@John, thank you so much for your concern however these are just simple steps in a sequence if anyone write it would be in the same manner thats why i did not mention the site i copied. However i will remember


Source - http://allpctips.jigsy.com/entries/windows-7/easy-ways-to-fix-logonui-exe-errors-in-windows-7-xp-vista
http://www.solvusoft.com/en/files/missing-not-found-error/dll/windows/autodesk-inc/autocad/userdata-dll/
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Author Comment

by:philsimmons
ID: 40604775
Thanks for posting responses.  Here is my problem.  First, I can't do a Windows repair, because I don't have the original Windows disk.  The operating system came installed on my computer, and when I try to use Lenovo's tools to make a system disk it won't let me because of the userdata.dll problem.   Any other ideas?  I was able to find the userdata.dll file on my hard drive ... can you tell me where it's supposed to live?  Thanks.
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Accepted Solution

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Experienced Member earned 500 total points
ID: 40604786
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Author Closing Comment

by:philsimmons
ID: 40604838
Starting isn't a problem.  It just requires two clicks of the error message and then normal Windows operates fine (until it's time to shut down, which requires the same process).  The link to the Microsoft Scannow command seems to have worked.  Thanks a million.
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LVL 96

Expert Comment

by:Experienced Member
ID: 40604858
@philsimmons  - Thanks for the update and I was happy to help.
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