Blue Screen Windows 7

Salve a tutti è da un bel po di tempo che ho questo problema al PC... All'avvio del PC se non lo lascio caricare per bene appena apro qualcosa compare la famigerata "schermata blu della morte" ogni volta con errori diversi... a volte riavvia il PC da solo altre volte lo devo fare manualmente... utilizzando WhoCrashed mi sono usciti questi errori:

Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Sat 04/01/2014 08:01:15 GMT your computer crashed
crash dump file: C:\Windows\Minidump\010414-29780-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF80003B6D150, 0x0, 0x200000)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

On Sat 04/01/2014 08:01:15 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrnlmp.exe (nt!KeBugCheckEx+0x0)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF80003B6D150, 0x0, 0x200000)
Error: KMODE_EXCEPTION_NOT_HANDLED
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

On Wed 01/01/2014 11:17:29 GMT your computer crashed
crash dump file: C:\Windows\Minidump\010114-25318-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x4E (0x99, 0x17348D, 0x3, 0x1518F4)
Error: PFN_LIST_CORRUPT
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that the page frame number (PFN) list is corrupted.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

On Thu 26/12/2013 08:17:18 GMT your computer crashed
crash dump file: C:\Windows\Minidump\122613-29796-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x4E (0x99, 0x18F12A, 0x0, 0x17612A)
Error: PFN_LIST_CORRUPT
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that the page frame number (PFN) list is corrupted.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

On Tue 24/12/2013 16:37:43 GMT your computer crashed
crash dump file: C:\Windows\Minidump\122413-25303-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0xBE (0xFFFFF8A000B12CB0, 0x80000001F7008121, 0xFFFFF88009ED45A0, 0xB)
Error: ATTEMPTED_WRITE_TO_READONLY_MEMORY
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This is issued if a driver attempts to write to a read-only memory segment.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

Come posso risolvere? L'ho già formattato un paio di volte... ma niente... i driver sono tutti aggiornati ma niente...

P.s. allego la foto con le caratteristiche del PC... per altre info chiedete.
Allegato 96785