Windows 7 boot_s Up To Black Screen With Cursor

My laptop stopped running Windows 7 Professional, and I believe it is due to a virus or other malware (I can't identify any program I installed right before I had this problem). I'm not sure what is causing it, so I'll describe the symptoms.

My computer is a Gateway Laptop (NV57H05h) with Intel Core i3-2310M processor, integrated graphics, 6GB ram. I am running Bitdefender Total Security 2013.

When I boot up my computer, I log into my account and subsequently get only a black screen with a cursor (on one occasion, the computer was stuck on the "welcome" screen all night instead). When the problem first occurred, I was unable to get to the log in screen, but using the Windows tools (including system restore) I got to the log in screen.

Safe mode works, but safe mode with networking is slow to the point of being unusable. Bit Defender does not work in safe mode. Using safe mode I uninstalled a graphics driver (in case it was corrupted), but that didn't solve the problem.

I tried the Bit Defender Rescue Mode, but it was unable to update (it also couldn't install Firefox). A system scan (without any update) did not reveal any viruses.

I can boot into Ubuntu 12.04 without trouble, so I don't think it is a hardware issue.

While in the black screen with a cursor, I can press shift to get the "activate sticky keys" window (after a delay).

One time (other times it didn't do anything), using CTRL ALT DELETE gave a window:

Failure to display security and shut down options

The logon process was unable to display security and logon options when CTRL+ALT+DELETE was pressed. If the operating system does not respond, press ESC or restart the computer by using the power switch.

The following window also appeared once:

dwm.exe -- Bad Image

C:\Windows\system32\dwmcore.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.

Sometimes, I get a blue screen error. A report (obtained by booting into safe mode) gives the following information.

Problem signature:

Problem Event Name: BlueScreen

OS Version: 6.1.7601.2.1.256.48

Locale ID: 4105

Additional Information about the problem:

BCCode: 1000007e

BCP1: FFFFFFFFC0000006

BCP2: FFFFF8000347C66B

BCP3: FFFFF880029D36E8

BCP4: FFFFF880029D2F40

OS Version: 6_1_7601

Service Pack: 1_0

Product: 256_1

Thank you for your help in resolving this issue. I apologize if this isn't the correct place to seek help for this problem.

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Comments

chapata

I ran into a similar problem, however it could also be a hardware related issue. I reinstalled ALL my drivers and it fixed the issue for me. :mellow:

rootkit

Hello

In order to be able to further investigate the reported situation we need a bit more information from your computer as follows:

. A BDSYS log;

[how to GENERATE A BDSYS LOG]

. Restart your PC in Safe Mode with Networking.

[How to restart in SAFE MODE With Networking]

- Restart the computer;

- Press the "F8" key several times before Microsoft Windows begins to load; you need to press "F8" until you will be displayed a text menu;

- Select "SAFE MODE With Networking"

. Save and extract the BDSYS tool to a location of your

choice:

http://www.bitdefender.com/files/Knowledge.../BDSysLog_i.exe

. Make sure you close all active applications and then run "BDSysLog_i.exe"; If you receive a firewall alert,select to Allow the application to connect;

. Click the "Create log" button to start generating the log; A progress bar is indicating that the tool is creating the report;

. When the small window appears with the message "Log saved" then the report is complete and a new file named "bdsyslog.zip" has appeared on your Desktop;

. Send me via PM the generated log file.

. If the file is to big for send it over PM, upload the results to one of the online file hosting servers mentioned below or use one of your own and send via PM the download link.

http://www.sendspace.com

http://www.mediafire.com

We will get back to you as soon as the analysis is complete.

Have a great day!

LacklusterMathie

Thank you for your response.

Unfortunately, I wasn't able to follow your instructions beyond downloading the BDSYS tool (which I was only able to do using the Ubuntu system I dual boot with).

Safe mode with networking doesn't work well enough to allow me to run the tool. In appearance it seems to be extremely slow or frozen; the help window that launches with safe mode remains white (it looks like a window that is in the process of opening) and won't close when I click on the x in the corner (or try to close from the bar at the bottom of the screen).

Using CTRL ALT DELETE will bring up the options window, but the task manager won't open and shutting down doesn't work either. If I leave the computer running long enough (even if I start it and don't do anything at all) it will give me errors very similar to these:

WerFault.exe -- Application Error

The instruction at 0x000007FEF6BCB504 referenced memory at 0x000007FEF6BCB504. The required data was not placed into memory because of an I/O error status of 0xc0000185. Click OK to terminate the program.

taskmgr.exe -- Application Error

The instruction at 0x00000000FFDA7D5C referenced memory at 0x00000000FFDA7D5C. The required data was not placed into memory because of an I/O error status of 0xc0000185. Click OK to terminate the program.

Subsequently, I get a message that Windows Explorer has stopped working. It doesn't seem to stop looking for a solution if I let it, nor does it finish restarting explorer.

Different attempts gave slightly different errors (the title sometimes changed, and the memory referenced was different) and at least once the instruction and reference had different hexadecimal numbers. There were always 2 errors before explorer stopped working, however.

I'm not sure if the situation is deteriorating or if I was not patient enough to witness this behaviour earlier.

I attempted to run the BDSYS tool in Safe Mode (without networking); it is more usable and reliable (although I still got similar errors to the ones above on one occasion) than Safe Mode With Networking. Unfortunately, the tool got stuck on a network analysis for an extended length of time (at least 15 minutes), so I stopped the program.

rootkit

Hello

Please run the System File Checker to check for altered files.

http://www.sevenforums.com/tutorials/1538-...le-checker.html

Thank you!

LacklusterMathie

I ran the System File Checker using Safe Mode with the command line option. The first time I ran it, it found errors and fixed them. I can provide you with the log if it will help. I ran the System File Checker 2 or 3 more times after that, and it found no errors.

Safe Mode With Networking was slightly improved (sometimes I could close the help window that opens with Safe Mode), but I still get the same kind of memory errors that I described in my last post (on one try I got 5 or 6, compared to the usual 2) and explorer eventually stops working; I still haven't been able to create a BDSYS LOG.

One time when booting up the computer, I got the following message before the login screen:

Bit Defender Threat Scanner

Bit Defender encountered problems while processing the file below:

C:\Windows\TEMP\bdc84A9.tmp

Do you want to send these files to Bit Defender labs for analysis?

I selected Yes, but I doubt the file ever went anywhere. I can provide it if it will help. I think that message occured when attempting to boot up Windows 7 normally, but I'm not positive (I had left the computer for a while and came back to find that message).

rootkit

Hello

Please go back in Safe Mode and delete all the files and folders from this location:

C:\Windows\TEMP\

Now go back in Normal Mode and repair the product.

http://forum.bitdefender.com/index.php?showtopic=35489

Take care.

LacklusterMathie

Unfortunately deleting the files in the

C:\Windows\TEMP\

folder hasn't solved any of the problems I'm experiencing.

Whenever I run Windows a new file is created. I've tried deleting the created files both using Safe Mode and using the Linux Operating System on my computer.

One time I attempted to use normal mode, CTRL ALT DELETE gave me an option screen, but the task manager wouldn't start. On a subsequent attempt, using CTRL ALT DELETE just gave me a message saying it didn't work. I've also received a message that Bit Defender couldn't analyze a file in the TEMP folder on at least one occasion.

rootkit

Hello

Could you please try now to generate this log?

http://forum.bitdefender.com/index.php?sho...st&p=169277

Happy New Year!

LacklusterMathie

Hello

Could you please try now to generate this log?

http://forum.bitdefender.com/index.php?sho...st&p=169277

Happy New Year!

I have tried. Safe Mode with Networking still doesn't work properly.

Is there any way to have the system log skip the step for checking the network? Then I could run it in ordinary safe mode.

rootkit

Hello

You can do it also in Safe Mode.

We will check the log manually.

Thank you!