Re-Occuring BSOD's

PERFMON indicates that your wireless USB device is disabled. If this is deliberate, please uninstall the software for the device and then physically remove the device from the system. In particular, using Vista drivers with these devices is known to cause BSOD's.

6 memory dumps in 4 days (20 to 23 Apr 2011)
5 different BSOD error codes
4 different causes blamed
This appears to be the start of a pattern indicating a hardware problem - but it can also indicate other issues such as compatibility or corrupt/outdated drivers (or even Windows issues). We'll start with the drivers as they're the easiest/quickest thing to do.

Once we are finished troubleshooting/fixing your issues - please update all drivers from the manufacturer's website. Then visit Windows Updates...Important Updates - and download/install Service Pack 1

MSI Afterburner has known issues with Win7 (older versions will cause BSOD's). Please uninstall this program while we're troubleshooting.

OLDER DRIVERS PRESENT IN THE DUMP FILES
- Create a System Restore Point prior to doing any of this. DO NOT mess with the drivers themselves - leave the Windows\System32\drivers directory alone unless we specifically direct you to it!
- Please update these drivers from the device manufacturer's website - or uninstall them from your system. Reference links are included below.
- DO NOT use Windows Update or the Update Drivers function of Device Manager.
- Please feel free to post back about any drivers that you are having difficulty locating.
- Windows Update exceptions may be noted below for Windows drivers:

Code:

amdsbs.sys      Fri Mar 20 14:36:03 2009 (49C3E213)
MpFilter.sys    Tue Sep 14 20:19:28 2010 (4C901110)
amdxata.sys     Tue May 19 13:56:59 2009 (4A12F2EB)
mcdbus.sys      Tue Feb 24 05:34:07 2009 (49A3CD1F)
nvhda64v.sys    Mon Jun 21 18:07:25 2010 (4C1FE29D)
RTKVHD64.sys    Tue Aug 04 05:50:52 2009 (4A78047C)
MpNWMon.sys     Tue Sep 14 20:19:30 2010 (4C901112)
NisDrvWFP.sys   Tue Sep 14 20:20:25 2010 (4C901149)
nvlddmkm.sys    Fri Jul 09 17:15:58 2010 (4C37918E)
nvBridge.kmd    Fri Jul 09 17:07:54 2010 (4C378FAA)
Rt64win7.sys    Wed Jun 23 05:10:45 2010 (4C21CF95)

http://www.carrona.org/dvrref.html#amdsbs.sys
http://www.carrona.org/dvrref.html#MpFilter.sys
http://www.carrona.org/dvrref.html#amdxata.sys
http://www.carrona.org/dvrref.html#mcdbus.sys
http://www.carrona.org/dvrref.html#nvhda64v.sys
http://www.carrona.org/dvrref.html#RTKVHD64.sys
http://www.carrona.org/dvrref.html#MpNWMon.sys
http://www.carrona.org/dvrref.html#NisDrvWFP.sys
http://www.carrona.org/dvrref.html#nvlddmkm.sys
http://www.carrona.org/dvrref.html#nvBridge.kmd
http://www.carrona.org/dvrref.html#Rt64win7.sys

If the BSOD's continue, please post back (and upload the latest memory dumps) and we'll see what else we can do.

BSOD BUGCHECK SUMMARY

Code:

Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Sat Apr 23 20:37:57.345 2011 (UTC - 4:00)
System Uptime: 0 days 2:03:43.530
Probably caused by : win32k.sys ( win32k!RFONTOBJ::bFindRFONT+cd )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0x50
PROCESS_NAME:  chrome.exe
FAILURE_BUCKET_ID:  X64_0x50_win32k!RFONTOBJ::bFindRFONT+cd
Bugcheck code 00000050
Arguments fffff900`c9427758 00000000`00000000 fffff960`00088e9d 00000000`00000002
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Fri Apr 22 23:19:25.265 2011 (UTC - 4:00)
System Uptime: 0 days 19:17:06.450
Probably caused by : hardware ( nt!MmZeroPageThread+89d )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0x7E
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_IP_MISALIGNED
Bugcheck code 1000007E
Arguments ffffffff`c000001d fffff800`02f0880e fffff880`009a99d8 fffff880`009a9240
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Fri Apr 22 04:01:36.535 2011 (UTC - 4:00)
System Uptime: 0 days 4:19:09.720
Probably caused by : hardware ( nt!KiCommitThreadWait+1d0 )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0x3B
PROCESS_NAME:  chrome.exe
FAILURE_BUCKET_ID:  X64_IP_MISALIGNED
Bugcheck code 0000003B
Arguments 00000000`c000001d fffff800`02ec0990 fffff880`0985ffe0 00000000`00000000
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Thu Apr 21 23:41:48.215 2011 (UTC - 4:00)
System Uptime: 1 days 3:15:02.010
BugCheck D1, {89048c7, 2, 1, fffff8800481530b}
Probably caused by : USBPORT.SYS ( USBPORT!USBPORT_Core_iGetNextPriorityTransfer+4b )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0xD1
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_0xD1_USBPORT!USBPORT_Core_iGetNextPriorityTransfer+4b
Bugcheck code 000000D1
Arguments 00000000`089048c7 00000000`00000002 00000000`00000001 fffff880`0481530b
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Wed Apr 20 20:26:04.026 2011 (UTC - 4:00)
System Uptime: 0 days 14:15:54.210
Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+42ba5 )
BUGCHECK_STR:  0x1a_41287
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  Skype.exe
FAILURE_BUCKET_ID:  X64_0x1a_41287_nt!_??_::FNODOBFM::_string_+42ba5
Bugcheck code 0000001A
Arguments 00000000`00041287 00000000`00000002 00000000`00000000 00000000`00000000
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Wed Apr 20 06:09:09.035 2011 (UTC - 4:00)
System Uptime: 5 days 19:33:44.430
Probably caused by : hardware ( win32k!HANDLELOCK::vLockHandle+3f )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0x3B
PROCESS_NAME:  chrome.exe
FAILURE_BUCKET_ID:  X64_IP_MISALIGNED
Bugcheck code 0000003B
Arguments 00000000`c000001d fffff960`0019450b fffff880`0ab52010 00000000`00000000
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
  
  

Not a problem, it'll just take us a bit longer.
Just do the stuff below, one thing at a time - and it'll get all the drivers installed for you.
Any issues, just post back and we'll answer them as they occur.

Your system is an HP Pavilion a6750f Desktop PC
Most of the drivers are available from here: Software & Driver Downloads HP Pavilion a6750f Desktop PC - HP Customer Care (United States - English)

Let's start with the video card drivers from nVidia. Here's the link for the drivers you need: NVIDIA DRIVERS 270.61 WHQL
Click on the link to download, agree to the terms for downloading, save the file on your Desktop.
When the download is finished, double click on the file on your Desktop and follow the prompts to install the drivers.

Then, please notice at the HP link (above) that there are updates available for the Audio and Network drivers. But, we'll start with the Driver - Original section and will do the updates afterwards.

In the Driver - Original section, skip the Original ATI Graphics driver (since you're now using an nVidia graphics card), then download and install the other 4 original drivers (Audio, Keyboard, Chipset, and RAID).

Then download and install the updates for the Audio and Network drivers from the Driver - Audio and Driver - Network sections.

Then, uninstall MagicISO. If you want to reinstall it, visit the manufacturer's website and download/install the latest available, Win7 compatible version.

Then do the same for the Microsoft Security Essentials program. Uninstall Microsoft Security Essentials. If you want to reinstall it, visit the manufacturer's website and download/install the latest available, Win7 compatible version.

Then visit Windows Update to ensure you have all updates. Then select the Important Updates and download/install Service Pack 1 (if not already installed)

Once that's done, post back with another copy of this stuff: https://www.sevenforums.com/crashes-d...tructions.html (so we can check to make sure everything is updated).