3 bsod in one day

Please make sure that you have all Windows Updates - it appears that you are missing a few.

Your profile states you have a Radeon HD4870, the dump file contains no ATI video drivers and has nVidia video drivers.

The problem looks to be with your hard drive or hard drive controller drivers, please replace those drivers (listed below) and see if that helps.

Also, please remove or update these older drivers that were loaded at the time of the crash. Don't use Windows Update or the Update drivers function of Device Manager.
Please use the following instructions to locate the most currently available drivers to replace the one's that you uninstall OR remove:

How To Find Drivers:
- I have listed links to most of the drivers in the code box below. Please use the links there to see what info I've found about those drivers.
- search Google for the name of the driver
- compare the Google results with what's installed on your system to figure out which device/program it belongs to
- visit the web site of the manufacturer of the hardware/program to get the latest drivers (DON'T use Windows Update or the Update driver function of Device Manager).
- if there are difficulties in locating them, post back with questions and someone will try and help you locate the appropriate program.

- - The most common drivers are listed on this page: Driver Reference
- - Driver manufacturer links are on this page: http://www.carrona.org/drvrdown.html

Here's the older drivers (You can look them up here: Driver Reference ).
Please pay particular attention to any dated 2008 or earlier:

Code:

SiWinAcc.sys Thu Jun 14 20:02:27 2007 (4671D713) - Silicon Image driver - comes with package for the SIxxxx drivers - Driver Reference
SI3132.sys   Wed Oct 03 14:41:04 2007 (4703E240) - Silicon Image driver - Driver Reference
SiRemFil.sys Wed Jun 20 16:06:09 2007 (467988B1) - Silicon Image driver - Driver Reference
nvm62x32.sys Fri Oct 17 17:00:39 2008 (48F8FCF7) - nVidia Ethernet Networking Driver (nForce chipset driver) - Driver Reference
ASACPI.sys   Thu Aug 12 22:52:52 2004 (411C2D04) - Asus ATK0110 ACPI Utility (a known BSOD maker) - Driver Reference

BSOD BUGCHECK SUMMARY

Code:

Built by: 7600.16617.x86fre.win7_gdr.100618-1621
Debug session time: Thu Oct  7 16:40:12.002 2010 (UTC - 4:00)
System Uptime: 0 days 3:25:22.657
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  System
BUGCHECK_STR:  0x24
Bugcheck code 00000024
Arguments 001904fb 999bca80 999bc660 828a9b79
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16385.x86fre.win7_rtm.090713-1255
Debug session time: Thu Oct  7 12:16:39.953 2010 (UTC - 4:00)
System Uptime: 0 days 0:01:05.483
*** WARNING: Unable to verify timestamp for cdd.dll
*** ERROR: Module load completed but symbols could not be loaded for cdd.dll
*** WARNING: Unable to verify timestamp for nvstor.sys
*** ERROR: Module load completed but symbols could not be loaded for nvstor.sys
*** WARNING: Unable to verify timestamp for SI3132.sys
*** ERROR: Module load completed but symbols could not be loaded for SI3132.sys
*** WARNING: Unable to verify timestamp for amdxata.sys
*** ERROR: Module load completed but symbols could not be loaded for amdxata.sys
*** WARNING: Unable to verify timestamp for SiWinAcc.sys
*** ERROR: Module load completed but symbols could not be loaded for SiWinAcc.sys
*** WARNING: Unable to verify timestamp for spldr.sys
*** ERROR: Module load completed but symbols could not be loaded for spldr.sys
*** WARNING: Unable to verify timestamp for SiRemFil.sys
*** ERROR: Module load completed but symbols could not be loaded for SiRemFil.sys
*** WARNING: Unable to verify timestamp for nvm62x32.sys
*** ERROR: Module load completed but symbols could not be loaded for nvm62x32.sys
*** WARNING: Unable to verify timestamp for ASACPI.sys
*** ERROR: Module load completed but symbols could not be loaded for ASACPI.sys
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
*** WARNING: Unable to verify timestamp for drmk.sys
*** ERROR: Module load completed but symbols could not be loaded for drmk.sys
*** WARNING: Unable to verify timestamp for dump_nvstor.sys
*** ERROR: Module load completed but symbols could not be loaded for dump_nvstor.sys
*** WARNING: Unable to verify timestamp for peauth.sys
*** ERROR: Module load completed but symbols could not be loaded for peauth.sys
*** WARNING: Unable to verify timestamp for secdrv.SYS
*** ERROR: Module load completed but symbols could not be loaded for secdrv.SYS
BUGCHECK_STR:  0xc2_7
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  svchost.exe
Bugcheck code 000000C2
Arguments 00000007 00001097 0000b501 91cb68d8
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16385.x86fre.win7_rtm.090713-1255
Debug session time: Thu Oct  7 12:14:36.725 2010 (UTC - 4:00)
System Uptime: 0 days 12:58:33.379
*** WARNING: Unable to verify timestamp for SiWinAcc.sys
*** ERROR: Module load completed but symbols could not be loaded for SiWinAcc.sys
BUGCHECK_STR:  0x1a_41287
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  svchost.exe
Bugcheck code 0000001A
Arguments 00041287 00000025 00000000 00000000
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``