LogonUI Error in my PC

Junsu Choe 0 Reputation points

I enabled remote assistance in dcomcnfg, but suddenly when I pressed the Windows start button, it loaded for a moment and then there was no response. cmd /c taskkill /f /im explorer.exe && start explorer I tried it, but it still didn't click, so I tried sfc /scannow, but there was no response, so I tried checking disk, but it stayed at 100%. And when I booted it up, LogonUI.exe - Application Error The system has detected a buffer overrun for this program. This causes malicious users to (...) appeared. At first, I thought the firewall had malfunctioned because of dcomcnfg, but after searching, I found out that this is an error that occurs when memory is invaded by another program... I know how important LogonUI is, so of course I thought it would pop up again if I put it in safe mode, but I thought it was my last hope and went into RE with F8 and put it in safe mode... As expected, the ominous premonition was not wrong... I ended up in the recovery command prompt... what should I do?

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
11,005 questions
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  1. S.Sengupta 16,571 Reputation points MVP


    *You may try a System Restore.

    *In the recovery environment, go to "Troubleshoot" -> "Advanced options" -> "Startup Repair."

    *In the recovery command prompt, type the following command and press Enter:

    • DISM /Online /Cleanup-Image /RestoreHealth

    *If none of the above solutions work, you might need to reinstall Windows.

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  2. Wesley Li 5,955 Reputation points


    It seems there is something wrong with the system files. You could try to run sfc to check the system files health offline.

    For example:

    Sfc /scannow /offbootdir=C:\ /offwindir=C:\windows

    If it would not work,I am afraid yoy may consider to reset the machine or perform a clean installation.

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