Windows Explorer has topped working. Fault: MSVCR80.dll

Hello, every time my computer restarts a explorer.exe crashes. the fault module is msvcr80.dll. I've tried various things suggested on other websites like as running "sfc /scannnow" in the command prompt, doing a system restore and booting in safe mode.

In safe mode. everything is OK. I ran Malwarebytes and turned out nothing. I disabled the startup processes and it still crashes.

It seems to have started after I created an .mkv file from "mkvmerge." I uninstalled same problem, Reinstall same problem.

The exact error is this:

Problem Event Name: APPCRASH
Application Name: Explorer.exe
Application Version: 6.1.7600.16450
Application Timestamp: 4aeba271
Fault Module Name: MSVCR80.dll
Fault Module Timestamp: 4a2752ff
Exception Code: c0000005
Exception Offset: 000153fe
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789


Any help will be greatly appreciated.


EDIT: I noticed that when I "Restart the program" in the error message and have the Task Manager opened, dllhost.exe appears then disappears. I know msvcr80.dll and dllhos.exe are part of the dynamic library.

Even though I disabled the start ups, a SolidWorks programs still runs, sldShellExtServer.exe. When I end process and "Restart the program" it reappears.

Edited by integra1, 07 November 2010 - 06:53 PM.

Boot from your Windows installation disk and select 'Repair your computer' or you could do an 'upgrade re-install repair'.

sorry, how would I do either of those?

I did Repair you computer with startup repair. Did not detect a problem

Here are detailed instructions on how to do a Repair Install:
http://www.sevenforums.com/tutorials/3413-repair-install.html?filter[2]=General

I read the tutorial, but I can't do this. As soon as windows starts the "Windows Explorer has stopped working" and it doesn't let me do anything else. Since I can do a Repair Install in Safe Mode, is there a way I can do it will windows is starting?

Note the Warning in pink in the article. This procedure must be done from the Desktop.


Warning
You can only do a repair install from within Windows 7, you cannot do a repair install at boot or in Safe Mode.
You must be logged into Windows 7 in a administrator account to be able to do a repair install.
You will not be able to do a repair upgrade install in Safe Mode.
The Windows 7 installation DVD that you use to do the repair install with must be the same or newer updated version of Windows 7 (ex: Windows Updates or SP level) than the currently installed Windows 7. If the DVD is a older version, then you cannot do a repair install with it.
You must have at least 8.87 GB of free space, more if you have a larger installation, on the hard drive/partition Windows 7 is installed on to do a repair install.

Is there away around this since I can't do it from the normal windows desktop?

There is this, but the developer network is beyond my level of comprehension.
http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvc/thread/05f52f13-b015-4179-948d-2c799076f3b4
I am not familiar with these methods and cannot be of much help with them. There are plenty of suggestions offering help if you do a Google search, but most of them are trying to take your money and sell you something useless. There are many Moderators and IT Professionals at this Forum who are more advanced than I am and are trained in different diagnostic and repair methods that are new to me. I'm sure that one of them will offer some help as soon as they get some time to do so. Sorry I couldn't be of more help, but if I run into something I'll get back to you.

PROBLEMS FIXED:

I got another message "Windows Explorer has stopped working" Fault Module divxmfsource.dll. I did a google search on this. They recommended to remove Divx. This fixed problem.


Thank You Zuhl3156 for all your help!

It's good to know that you got everything sorted out and working again. Thank you for the info on Divx. I used to use the free version to enhance the audio in my Media Player and still have the download but never re-installed it. Since I've had nothing but problems with Windows Media Player being unable to burn audio CDs properly I now use nothing but iTunes. Good luck with everything.

Edited by Zuhl3156, 08 November 2010 - 11:04 AM.