Newbie with BSOD

Run SeaTools on your external hard drives: SeaTools for Windows | Seagate

Code:

Event[656]:
  Log Name: System
  Source: Disk
  Date: 2011-11-13T14:18:04.128
  Event ID: 11
  Task: N/A
  Level: Error
  Opcode: N/A
  Keyword: Classic
  User: N/A
  User Name: N/A
  Computer: Adrian-PC
  Description: 
The driver detected a controller error on \Device\Harddisk4\DR4.

Also, run the Blend, Small FFTs, and Large FFTs Prime95 tests:

Hardware - Stress Test With Prime95

Code:

Event[2201]:
  Log Name: System
  Source: Microsoft-Windows-Kernel-General
  Date: 2011-11-06T14:07:55.937
  Event ID: 5
  Task: N/A
  Level: Error
  Opcode: Info
  Keyword: N/A
  User: S-1-5-18
  User Name: NT AUTHORITY\SYSTEM
  Computer: Adrian-PC
  Description: 
{Registry Hive Recovered} Registry hive (file): '\SystemRoot\System32\Config\SOFTWARE' was corrupted and it has been recovered. Some data might have been lost.

Finally, run Memtest86 overnight:

RAM - Test with Memtest86+

...Summary of the dumps:

Code:

Built by: 7601.17640.amd64fre.win7sp1_gdr.110622-1506
Debug session time: Sat Nov 12 06:24:47.358 2011 (UTC - 5:00)
System Uptime: 0 days 2:41:52.295
Probably caused by : ntkrnlmp.exe ( nt!ExAllocatePoolWithTag+537 )
BUGCHECK_STR:  0xC5_2
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  PowerDVD8.exe
FAILURE_BUCKET_ID:  X64_0xC5_2_nt!ExAllocatePoolWithTag+537
BiosReleaseDate = 07/09/2010
SystemProductName = MS-7637
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7601.17640.amd64fre.win7sp1_gdr.110622-1506
Debug session time: Sun Nov  6 07:18:39.608 2011 (UTC - 5:00)
System Uptime: 0 days 0:08:53.600
Probably caused by : ntkrnlmp.exe ( nt!ExpScanGeneralLookasideList+a0 )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0xA
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_0xA_nt!ExpScanGeneralLookasideList+a0
BiosReleaseDate = 07/09/2010
SystemProductName = MS-7637
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``