Flashing log-in screen, LogonUI.exe

[jtmoney528]

End user has tested it, the fix worked. This messed up a lot of applications for us too which are fixed now also.

BitDefender

 

[StormofThunder]

So I take it you're a home user? I don't know what to tell you on that one. I think your best bet is going to be to call BitDefender and have them help you since they're ones that hosed your computer.

I don't know what you classify as a home user but I'm fairly experienced in software related problems, and have fixed a number of computers with some workarounds for friends and family, I just don't happen to have my own Windows 7 repair CD. And I just need to refresh myself on what's possible to do if I don't have one, or can use another. It's just something I've forgotten about.

edit: yeah never mind home user is right

 

[StormofThunder]

Okay, we got it a fix here.

We disabled AVC and so far no issues

I also disabled AVC and it worked, I have re-enabled it after they posted up that the fix was out, now I am waiting for an end user to test it out.

Yet another embarrassing question, I may just not know the acronym, but what is AVC, and have you done it from safe mode?

 

[jtmoney528]

So I take it you're a home user? I don't know what to tell you on that one. I think your best bet is going to be to call BitDefender and have them help you since they're ones that hosed your computer.

I don't know what you classify as a home user but I'm fairly experienced in software related problems, and have fixed a number of computers with some workarounds for friends and family, I just don't happen to have my own Windows 7 repair CD. And I just need to refresh myself on what's possible to do if I don't have one, or can use another. It's just something I've forgotten about.

We have the enterprise version so I am not sure if its the same but do this:

Open up the console, click the small i (info) in the bottom right corner and check to see if the product is up to date and see when it last updated (last update for us was 11:48 and its fixed)

 

[londoulis]

Same think here. Bitdefender...

I was turning off my computer when I got an error. When I turned it on again I had the screen probe in my face for quite some time, then a LogonUI.exe error message and then probe again. I reset and entered Safe mode. Everything was fine.

Reset again, and flashing screen. I 've waited for a few minutes and then I started pressing the 'esc' button. I don't know if it had anything to do with it, but I suddenly got the 'log on' screen. After that point everything went smooth and managed to fully access my computer.

I will not shut it down again, untill I see the fix.

Thanks Bitdefender.

 

[jtmoney528]

Okay, we got it a fix here.

We disabled AVC and so far no issues

I also disabled AVC and it worked, I have re-enabled it after they posted up that the fix was out, now I am waiting for an end user to test it out.

Yet another embarrassing question, I may just not know the acronym, but what is AVC, and have you done it from safe mode?

I disabled BitDefender for testing purposes on a single machine. This is all be done through cloud console control, controlling over 500+ machines.

 

[milanetsky]

Hello guys, is there any solution if i cant repair Windows, cant update bitdefender? I have a dell machine, windows 7 x64, i can only acces safe mode, i tried the "sfc /scannow" cmd, it did not work. So any suggestions?

 

[SonicClang]

Okay, I don't know what you classify as a home user but I'm fairly experienced in software related problems, and have fixed a number of computers with some workarounds for friends and family, I just don't happen to have my own Windows 7 repair CD. And I just need to refresh myself on what's possible to do if I don't have one, or can use another. It's just something I've forgotten about.

I asked because things are different if you're not a network vs at home. On a network, BitDefender is controlled via a server. At home it's just installed on your computer. We were able to update on the server, have our end-users restart, and the problem went away. You couldn't do that same thing.

 

[StormofThunder]

A fix that works now is by beginning to uninstall bitdefender but choosing repair instead.

 

[waltwalt]

I've run into this problem on a few of the Win7x64 machines in my company. A little bit of a different problem here though, we don't use BitDefender! We actually have Novell as our networking client so perhaps that is mitigating part of the problem. When an affected user hits Ctrl-Alt-Del it brings up a window "Unable to show Shutdown and Security Options" or if a screensaver is set to require login after restoring the user experiences the flashing screen.
Computers that are affected all have update.bitdefender.com in their hosts file, but as far as I can tell the computer has no BitDefender, and there is no BitDefender server on my network.

A fix for this was to manually download the free version of BitDefender, then uninstall it. This has fixed every computer I've tried it on so far.

 

[nopast68]

I have a home build system. Getting the same flashing at the windows login. I called Bitdefender after reading about all the people that have it (as well as me) and they knew of no issue.
Able to get into safe mode and use it without issue.
I did a system restore and can now get in although it said ir failed to do the restore..lol.

 

[matts6887]

Like i said; at this point from what i can tell; the first thing to try would be to do a system restore back to a date before these issues started happening.

 

[WeAtBitdefender]

Hello, all. We are aware of the situation you reported, Black screen when locking Windows, and we are sorry for any inconvenience it may have created, but we want to assure you that a fix has already reached all our update servers.
For any issue regarding the product please contact our support department or, if you can provide us with an e-mail address, we can ask our support team to get in touch with you. However, in the meantime, please go through the following link where you can find more details about what happened and, more important, the steps you have to perform in order to solve the problem: Black screen when locking Windows

 

[ES8000]

Starting Windows in safe mode and repairing Bitdefender worked for me. Control Panel->Programs->Bitdefender->Repair

 

[mcdaniel]

Confirmed fix

Starting Windows in safe mode and repairing Bitdefender worked for me. Control Panel->Programs->Bitdefender->Repair

I can confirm that this BITDEFENDER REPAIR solution fixed the problem in my case, allowing me to login outside safe mode!