What is LogonUI.exe error? LogonUI.exe file stands for Windows Logon User Interface and belongs to Windows Logon UI or Windows Logon User Interface Host of Microsoft Windows operating system developed by Microsoft Corporation. The associated files of LogonUI.exe contain winlogon.exe, cutildll64.dll, msvcrt.dll and credui.dll. There are multiple system problems can possibly lead to LogonUI.exe error, including missing or damaged LogonUI.exe, incompatible version of LogonUI.exe, corrupt LogonUI.exe removal/repair failure, driver update failure, missing or damaged driver files, invalid version of driver, disabled driver, cyber threat attacks and complicated registry problems.

Consequences of LogonUI.exe error: Windows log on failure
Unexpected Blue Screen of Death errors
Black Screen of Death errors with driver file details
Drastic decrease of system performance
Third- party application removal failure
Windows components removal/install failure
Windows file update failure
Cyber threat attacks
Software instability
Increasing times of program crashes

Common LogonUI.exe error messages: LogonUI.exe – Entry Point Not Found
The procedure entry point UnconstrainedDelegationEnabled could
not be located in the dynamic link library cutildll64.dll.

LogonUI.exe – Entry Point Not Found
The procedure entry point could not be located in the dynamic link library msvcrt.dll

LogonUI.exe – System Error
The program can’t start because credui.dll is missing from your computer. Try reinstalling the program to fix this problem.

How to fix LogonUI.exe error effectively? Solution One: Restore LogonUI.exe from Recycle Bin
If you have wrongly removed LogonUI.exe to the Recycle Bin, you can try to restore the file from it.

Solution Two: Disable LogonUI.exe from the Windows Task Manager
Step One: Press CTRL+ALT+DELETE to enable Task Manager on your PC.
Step Two: Click Processes.
Step Three: Locate and right-click the LogonUI.exe file.
Step Four: Click End Process.

Solution Three: Re- register associated .dll files of LogonUI.exe.
In order to fix LogonUI.exe error, you may consider trying to re- registering the associated .dll files of LogonUI.exe if they haven’t been damaged by any undesirable activity or compromised by malware. You can follow the easy instructions to re- register cutildll64.dll:
For Windows XP user:
Step One: Click Start, and then click Run.
Step Two: Type cmd onto the latest dialog box and press Enter button to enable Command Prompt utility.
Step Three: Type regsvr32 cutildll64.dll onto the Command Prompt window as soon as it pops up.
Step Four: Press Enter to confirm the modification.
For Windows 7 user:
Step One: Click Windows or Start if you are using Classic theme.
Step Two: Type cmd onto the latest search box above Windows menu.
Step Three: As soon as the Command Prompt appears on the screen, type
regsvr32 cutildll64.dll
Step Four: Press Enter.

Solution Four: Replace it with a compatible one from cyber space.
Step One: Download the compatible version of LogonUI.exe from network.
Step Two: Save it onto a hard disk. And then go to the folder C:\WINDOWS\system32.
Step Three: Locate the problematic version of LogonUI.exe on your computer.
Step Four: Rename the current version of LogonUI.exe with a name you like.
Step Five: Copy & paste the compatible version into the folder C:\WINDOWS\system32.
Step Six: Click Start and then head to Run.
Step Seven: Type cmd onto the latest pop- up and press Enter button to go into the Command mode. (In Windows 7, type cmd onto the latest search box above Windows menu.)
Step Eight: Type “regsvr32 LogonUI.exe” onto Command Prompt and then press “Enter” button.

Solution Five: Fix registry problems.
The damaged Windows registry has the ability to trigger various types of system problems, including unexpected Blue Screen of Death error, drastic decrease of system performance, undesirable .exe file corruption and increasing times of network connection disrupt. To efficiently fix LogonUI.exe error, you may consider firstly getting rid of the damaged Windows registry.

How to fix registry problems efficiently without damaging critical system files? A perfect solution for the problems is to enable a trusted registry repair tool on your computer. A trusted registry repair tool combines with a package of comprehensive services that can completely wipe out undesirable registry components, fix obscure registry errors and repair corrupt registry files. How to fix LogonUI.exe error and get rid of registry problems easily?
3/29/2014 09:39:55 pm

Emmanuel Foya
5/19/2015 02:08:01 pm

I can not login hence I can't reach the Task Manager or the Run.

7/15/2016 09:37:33 am

8/11/2016 11:19:58 pm

Do a reset with a USB flash drive. It just wipes your C: drive out, chill!

10/17/2016 01:33:03 am

hi, i have a acer switch 10 windows 8.1 recently i was using my acer switch 10 then it just powered down upon rebooting it gave me the acer logo as normal then the screen began to flash about 3 or 4 times before going to a black screen with the logonUI.exe error message blinking in and out each time with three different error codes. i can not login or go into safe mode. ive tried everything i can think of. ive reset my computer, refreshed it startup repair does nothing. i do not have a usb drive, network connection or windows recovery dvd. the only thing i can really do now is use the command prompt witch i have. i have already tried using the system file checker tool when it completes it says "windows resource protection could not perform the requested operation. i don't know what to do at this point, should i just take it to a computer repair shop and see if they can fix it?


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