Looking at the first dump file I thought there was a quick and easy fix, but then the other dump files displayed a different STOP error and bug check code (which is the one that you reported).
I appended the analysis.
As you can see, an unspecific DRIVER_FAULT error is detected - while running the MSN messenger, it seems. Comparing the results of the first dump file analysis, I have reason to suspect that the faulty device driver could be your graphics driver.
Hence here's what you could do:
1. Disable the MSN Messenger
(Start > Run > type: msconfig.exe > Startup) or even uninstall it (Control Panel > Add/Remove programs > Windows Components).
Use Pidgin (
http://www.pidgin.im) or Trillian Basic (
http://www.ceruleanstudios.com) instead.
This may give you less BSODs, but fight the symptoms only, not the cause.
2. Update your Nvidia drivers
Some versions of the Nvidia drivers are notorious for causing all sorts of havoc. Not always newest is best. If you already run the current version, or updating does not stop the BSODs, consider rolling back to an older but stable version that was working well with your system (maybe even the version of the drivers that came together with it).
Use DriverSweeper to get rid of your current drivers before rolling back:
http://www.guru3d.com/index.php?page=driversweeper3. Configure Microsoft's Watchdog system driver to not issue a bug check
http://msdn.microsoft.com/en-us/library/ms797877.aspxIn the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\
CurrentCon
trolSet\Co
ntrol\Watc
hdog
create a REG_DWORD entry called 'DisableDebugCheck' and set its value to 1.
This will address the cause of the crash in the first minidump you uploaded.
