problema riavvio schermo blu

[pwaalk]

salve a tutti
da ieri improvvisamente il mio pc si riavvia da solo mostrandomi prima la classica schermata blu, e poi il riavvio

metto qui la descrizione degli errori con un programma apposito

primo errore

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Dump File : 030311-14757-01.dmp
Crash Time : 03/03/2011 13:06:42
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code : 0x000000d1
Parameter 1 : 0x00000000
Parameter 2 : 0x00000002
Parameter 3 : 0x00000008
Parameter 4 : 0x00000000
Caused By Driver : USBPORT.SYS
Caused By Address : USBPORT.SYS+626d
File Description : Driver porta USB 1.1 & 2.0
Product Name : Sistema operativo Microsoft® Windows®
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Computer Name :
Full Path : C:\Windows\Minidump\030311-14757-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7601
Dump File Size : 198.008
==================================================


secondo errore

==================================================
Dump File : 030311-14757-01.dmp
Crash Time : 03/03/2011 13:06:42
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code : 0x000000d1
Parameter 1 : 0x00000000
Parameter 2 : 0x00000002
Parameter 3 : 0x00000008
Parameter 4 : 0x00000000
Caused By Driver : USBPORT.SYS
Caused By Address : USBPORT.SYS+626d
File Description : Driver porta USB 1.1 & 2.0
Product Name : Sistema operativo Microsoft® Windows®
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Computer Name :
Full Path : C:\Windows\Minidump\030311-14757-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7601
Dump File Size : 198.008
==================================================


terzo errore

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Dump File : 030311-14898-01.dmp
Crash Time : 03/03/2011 23:45:51
Bug Check String : MULTIPLE_IRP_COMPLETE_REQUESTS
Bug Check Code : 0x00000044
Parameter 1 : 0x875c89d8
Parameter 2 : 0x00000eae
Parameter 3 : 0x00000000
Parameter 4 : 0x00000000
Caused By Driver : USBPORT.SYS
Caused By Address : USBPORT.SYS+4868
File Description : Driver porta USB 1.1 & 2.0
Product Name : Sistema operativo Microsoft® Windows®
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Computer Name :
Full Path : C:\Windows\Minidump\030311-14898-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7601
Dump File Size : 194.704
==================================================

quarto errore

==================================================
Dump File : 030411-15069-01.dmp
Crash Time : 04/03/2011 10:40:27
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code : 0x000000d1
Parameter 1 : 0x75662e7e
Parameter 2 : 0x00000002
Parameter 3 : 0x00000000
Parameter 4 : 0x8b134b18
Caused By Driver : Wdf01000.sys
Caused By Address : Wdf01000.sys+9b18
File Description : Runtime framework driver modalità kernel
Product Name : Sistema operativo Microsoft® Windows®
Company : Microsoft Corporation
File Version : 1.9.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Computer Name :
Full Path : C:\Windows\Minidump\030411-15069-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7601
Dump File Size : 197.984
==================================================


gli ultimi 2, cioè la schermata 3 e 4 sono stati causati stamattina.

ce da precisare che in questo ultimo periodo non ho fatto alcuna modifica hardware quindi molto probabilmente causata forse da qualche software , ma da chi?

comnuque mi rivolgo a voi per un ulteriore chiarimento a proposito,

grazie per ogni vostra eventuale risposta

[pwaalk]

aggiungo le caratteristiche del mio pc

BIOS Information
Vendor American Megatrends Inc.
Version P1.50
Board Product ID N61P-S

Processor Information
Summary 1 Physical Processors / 2 Cores / 2 Logical Processors / 64 bits
Name AMD Athlon(tm) Dual Core Processor 5050e
Vendor AuthenticAMD
Original System Clock 200 MHz

Storage Device Information
Disk 0 120.0 GB ST3120022A (unità disco standard)
Disk 1 500.1 GB STM3500418AS (unità disco standard)
Disk 2 1000.2 GB WDC WD10EARS-22Y5B1 (unità disco standard)
DVD Writer 0 TSSTcorp CD/DVDW SH-S182M ATA Device (TSSTcorpCD/DVDW SH-S182M) (Unità CD-ROM standard)
DVD-ROM 1 ZOZED 74XIFKPE SCSI CdRom Device (Unità CD-ROM standard)
DVD-ROM 2 ZOZED 74XIFKPE SCSI CdRom Device (Unità CD-ROM standard)

Memory Information
Slot 1 DDR2 (PC2-6400) 2048 MBytes Melco
Slot 2 DDR2 (PC2-5300) 2048 MBytes Kingston

Display Adapter Information
NVIDIA GeForce 9800 GT 1024 MBytes GDDR3

Sound Adapter Information
Realtek High Definition Audio Realtek

Network Adapter Information
Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter WIRELESS LAN Connected [54 Mbps]
NVIDIA nForce 10/100 Mbps Ethernet Connected

Operating System
Type Windows 7 Ultimate Service Pack 1

[pwaalk]

per i dettagli di ogni sezione del mio pc allego il file
creato con il programma SIW
www.megaupload.com/?d=P33WEZN9