I don't have a huge amount of knowledge with computers so step-by-step information would be appreciated.
I've done a WhoCrashed analysis and the results are as below. There have been many more crashes than stated here though, I'm probably getting around 5 a day.
OS is Windows 7, 64-bit.
On Thu 02/09/2010 19:16:12 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022E4060, 0xFFFFF80003FD0748, 0xFFFFFA8005917010)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\090210-17191-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Thu 02/09/2010 14:24:40 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022D0060, 0xFFFFF80000B9C4D8, 0xFFFFFA8004A1E650)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\090210-15896-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Wed 01/09/2010 17:31:57 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA8002652060, 0xFFFFF80003FD14D8, 0xFFFFFA800262F290)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\090110-16707-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 22/08/2010 13:54:05 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022DF060, 0xFFFFF80003FD14D8, 0xFFFFFA80058663D0)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\082210-15662-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 15/08/2010 15:43:46 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA8002651A20, 0xFFFFF80000B9C4D8, 0xFFFFFA8005FBC710)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\081510-15631-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Fri 13/08/2010 18:11:22 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022E3A20, 0xFFFFF80003FCA4D8, 0xFFFFFA800396E610)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\081310-15787-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Thu 12/08/2010 19:18:47 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022E7060, 0xFFFFF80003FCA4D8, 0xFFFFFA8003BD3740)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\081210-18969-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Fri 06/08/2010 23:11:01 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA8002675060, 0xFFFFF80000B9C4D8, 0xFFFFFA8004121580)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\080610-17565-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Fri 23/07/2010 17:43:25 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022CE060, 0xFFFFF80003FCA4D8, 0xFFFFFA80042FAA10)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\072310-17612-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Wed 14/07/2010 21:50:47 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x7F (0x8, 0x80050031, 0x406F8, 0xFFFFF80002A87CC0)
Error: UNEXPECTED_KERNEL_MODE_TRAP
Dump file: C:\Windows\Minidump\071410-17175-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Mon 05/07/2010 17:00:53 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA8002302060, 0xFFFFF80003FCF4D8, 0xFFFFFA8006819E10)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\070510-17940-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 06/06/2010 19:28:32 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA800229F060, 0xFFFFF80000B9C4D8, 0xFFFFFA80063163D0)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\060610-16520-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 18/04/2010 20:58:28 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022EA060, 0xFFFFF80000B9C4D8, 0xFFFFFA80063C6350)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\041810-19359-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 11/04/2010 20:34:31 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA800225E060, 0xFFFFF80000B9C4D8, 0xFFFFFA80020F5B10)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\041110-16052-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 04/04/2010 20:43:10 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022EEA20, 0xFFFFF80000B9C4D8, 0xFFFFFA80023A1C20)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\040410-21434-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Tue 09/03/2010 17:35:57 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA8002281060, 0xFFFFF80000B9C4D8, 0xFFFFFA8001CB28C0)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\030910-24694-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
On Sun 07/03/2010 21:50:51 your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x9F (0x3, 0xFFFFFA80022C1060, 0xFFFFF80000B9C4D8, 0xFFFFFA800479B2C0)
Error: DRIVER_POWER_STATE_FAILURE
Dump file: C:\Windows\Minidump\030710-20108-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit is in another driver on your system which cannot be identified at this time.
Edited by chapperz, 07 September 2010 - 08:13 AM.