"Windows logon: LogonUI.exe-system error

Question

Windows Logon: LogonUI.exe-system Error. The program can't start because HID.DLL is missing from your computer. Try reinstalling the program to fix the problem.

Answer 1

Hi Arnold,

1.    Were there any changes made on the computer prior to the issue?

2.    When exactly do you get the error message?

3.    Are you able to login to the desktop?

Method 1:

I would suggest you to do a Startup repair and check if the issue persists:

Startup Repair

http://windows.microsoft.com/en-US/windows7/products/features/startup-repair

Method 2:

If the above method does not work, I would suggest you to boot into the **Windows Recovery Environment** and then run the following commands:

a.     Select Command prompt in the options available.

b.    You need to change the location to C:\Windows\System32 and then execute the below given commands and press Enter after each command:

ren LogonUI.exe LogonUI.old

cd..

cd winsxs

dir *LogonUI*.*

cd amd64_microsoft…[the full path under which directory the file is present]

copy LogonUI.exe C:\Windows\System32

c.     Reboot the computer and check if you are able to boot to the desktop.

If you are still facing the issue, please reply and we will be glad to help you.

Answer 2

i have too

Answer 3

Well, you are facing this due to dll error. So to fix this you need to repair the dll files or install the related DLL files. you get this dll files in the manufacturer site or Microsoft official site.

Answer 4

Hello, I am having this same problem.

Although when I try and enter the last command it says file specified is not found.

Are there any other solutions you can recommend?

Answer 5

It had worked for me, thank you.