DEP closed after restart of the full screen green and locked computer

Hello.  I was online with for example, and all of a sudden my complete green screen clear and computer locked up.  I had to reboot and everything seemed OK, but then I got the error msg which closed that is outdoors to protect my computer against a potential threat.  I've wound up and then be reopened and works very well.  My Microsoft Security Essentials doesn't show any problem, and also running a quick scan with Malwarebytes shows no threat.  I thought at first that my monitor can only be at fault (or video card), but the msg DEP me even more worried now.   Thanks in advance for any help or advice.

Hi AGP123,

This isn't really much of a cause for concern unless you see several times IE crashing. If you do, it's almost certainly a pluggable software component IE, just so disable all, then in reactivating one at a time. It is very likely to be a hardware problem. See this for more information.

Tags: Dell Desktop

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    Office applications #3 lose focus: it affects two of us under Vista and 7. We will be typing in chat, email, anything... and the foreground app will lose focus. What catches there that is impossible to determine. In my case, I can occasionally see a taskbar popup button and then disappear immediately, but I have never been able to track it down. Running in safe mode or boot seems to have no effect on this, or disable all services, extension and program but by default Microsoft in Windows 7 and Vista. Its almost like a Microsoft program is to do. Also, even though I mentioned the taskbar icon appears briefly from time to time, which cannot be bound: it does not always coincide with the loss of focus and is not always present when the focus is lost.

    #4 desktop applications lose keyboard focus and the mouse: it's like the number #2 above, but happens at the level of the office. Unlike the #3 that the window does not lose focus, it is always in the foreground, but keyboard and mouse stop working. It is usually impossible to move to another window. Just like #2, the solution that we have so far is to use CTRL-ALT-DEL to switch to the Task Manager, which temporarily solves the problem. ALT-tab through windows does not work.

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    Firefox: Firefox repeatedly will "dim", where Aero makes the window lose color to indicate that the application is not responding. It didn't happen before January 2011 for any version of Firefox.

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    I tried booting safe and clean, and they have had no effect. Secure boot is rather useless since I can not usually run programs that show the problem more easily. I also tried turning off everything except what comes with Windows 7, and it had no significant effect.

    I tried to use a different mouse. While it helped a bit with one of my friends, it only helped me so far. Different mouse drivers do not seem to help either. I also tried various nVidia without significant information acquired or corrective drivers.

    I also ran through various other ideas here as the race of the file system scanner and so on and not found any problems with my system, and where I could help my friends do and they also found nothing of note with maintenance and verification tools.

    My friends and co-workers: most of them are not local to me, so my focus of their issue has been rather limited. The main thing that we all have in common is that we had some minor problems in the past, as in 2010, and they've all got a lot worse in early 2011. Unfortunately none of us kept of records accurate enough to indicate any special updates that might have caused it.

    In any case, I apologize for the log message, but this issue emphasis is maddening. Its become a frustration serious then I thought to post information on the problems which seem related would be the more useful approach.

    I am a graduate of comp-sci systems and a companion systems programmer, and I have tried everything I can think of to debug and isolate problems, symptoms, etc. and had no chance. My friends are usually illiterate computer so that they are even more perplexed and frustrated by this problem. In my reading the forums, I see a lot of Windows Vista and 7 discussion questions, but rarely a lot of details, and when a problem is identified, it this far does not apply to me or my friends.

    I am happy to provide any other details I can.

    Updates:

    I forgot to mention that I have a Setup dual monitor. Aero seems unhappy with it, a lot of flicker when switching to full screen in games and other applications. I guess its because a single display off Aero while the other has it we or maybe not accelerated. Remove the second screen does not solve the problems I see, but I mention it in the interest of further development.

    I want to just chime in that I see similar (but not exactly the same) behavior and time seems to match as well. Among the updates must have messed something up. I forgot my Cardinal never update rule anything :/

    In any case, I have a few specific questions all problems related to full screen/window/input. When you play the Witcher, when you look at, if the mouse touches the edge of the screen, it stops, thus giving a very narrow range of angles I can watch from. Baldurs gate, as soon as I hit any key, I can't click on anything whether (and what I typed does not appear). Looking for police 3 (dosbox) it works fine until I hit a key, and then the mouse bounces oddly around the screen. If I alt - tab, in these 2 cases to last and go back, the problem is solved until I have a button again. In the case of the Witcher, if I alt tab and click the icon to the taskbar, it seems this problem, until I have a press.

    And I'm sure I had none of these problems a few months ago. I have tried everything I can think :( I tried the registry settings, but they do not seem to help.

    Edit: Oh, almost forgot. Whenever I click on full screen on an online video, like youtube, it appears in the background behind other windows, and then I have to click on it in the background to bring it forward. Very weird. Not sure if it's related. I'll try to change my video drivers... So boring when everything was working fine a few months ago.

    Edit 2: Do not take into account my post, I had a program called synergy race (usually use a mouse on multiple computers at the same time). Apparently, he was the problem.

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