I have a laptop running windows 7 that no longer can correctly boot. When I turn the computer on, the boot process continues as normal until after the windows logo appears, when an error message pops up labeled LogonUI.exe - Bad Image.
I saw a previous thread about this here: http://www.bleepingcomputer.com/forums/t/532949/logonuiexe-bad-image-error/
and have gone through the fixes but nothing works.
My error message says:
C:\Windows\system32\certCredProvider.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.
After this, the welcome screen will appear, then go away and be replaced by a black screen with the pointer on it.
The computer also cannot boot to safe mode, as the screen will be blank again, this time with the safe mode text in each corner
Startup repair does not detect any problems
The issue started when I turned on my computer while I had a USB audio interface plugged in (M-Audio Mbox 2), which has given me problems before. However, I always could unplug the mbox and restart the laptop, and the computer would work as normal. However this time, it persisted, and nothing seems to fix it.
I have spent a bunch of time today researching this error and came across fixes mentioning using sfc /scannow to try and repair corrupted windows files. However, when I run sfc/scannow /offbootdir=e:\ /offwindir=e:\windows, it will give me a message saying that some corrupted files could not be fixed.
When looking up this issue, I found posts saying to use dism, but I could not get any of their commands to work.
Finally, I booted from a USB I created, and tried to run startup repair, the same commands, and perform a repair installation. None of these did anything different, while the repair installation would not work, asking me to remove the cd that the system was booted from. I even tried removing the USB after this, but nothing changed.
At this point I'm just wondering if I should try to recover data and factory reset the entire thing. I really desperately need to recover some files from the computer though, so resetting without recovery is not an option.
Edited by pewu, 13 November 2016 - 08:59 PM.