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LogonUI.exe Bad Image

I recently received a laptop from a friend to get fix. as you can see in the screenshot, I am getting this bad image error message whenever the computer starts or shutsdown. I have resolved the issue before (different computer) with just a sfc /scannow, but this time is not working. Can anyone give me an advice on anything else I can try??

this is what I have tried
- SFC/ SCANNOW
-Disk repair
- chkdsk /r from system recovery cmd
- startup repair from system recovery
-System Restore to an earlier state
- performed virus scan with AVG/Malwarebytes/NAV
-replaced the files with known good ones from different machine (same version)


running Windows 7 Ultimate (genuine) SP1 on Dell Inspiron Laptop
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valdezf
Asked:
valdezf
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3 Solutions
 
Ryan WeaverInfrastructure ManagerCommented:
You may have to boot from the media and repair the install.
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valdezfAuthor Commented:
I tried that but it didn't worked.
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Ryan WeaverInfrastructure ManagerCommented:
It seems that most Logonui problems like this end in one of two ways, either sfc /scannow or running antivirus scans while in safe mode fixes the issue or a reinstall is required.
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Jim-RCommented:
If SFC fixed this before for you, what if you delete them and let SFC fix / replace / register them?  They may not be "registered" correctly (regsvr32.exe <filename.dll>.

Or

Use the Process Monitor Tool to find out what is going on.
See also Tips for using Process Monitor

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valdezfAuthor Commented:
sfc /scannow fixed the issue on a different computer before, meaning I know this is what usually fixes this type of problem. I ended up re-installing the OS. Thank You All!!!
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