Ciao a tutti, chiedo il Vs. aiuto per un problema che si presenta ormai da un paio di settimane e nn so più cosa fare.
Il pc, (Windows Vista Home Premium - 32bit) si blocca , non fà proprio nulla, devo spegnerlo in modo forzato con il tasto dell'accensione. Il problema non sembra legato a nessun programma in particolare, in quanto si verifica a caso. Inizialmente anche firefox presentava problemi (non si avviava, nemmeno in modalità provvisoria), problema ora risolto).
Vi chiedo aiuto, non so più che fare, carico di seguito il log di hijackthis, sperando sia di aiuto.
Grazie.

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 14.19.51, on 01/09/2010
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18470)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\PACKARD BELL\SetUpMyPC\SmpSys.exe
C:\Windows\System32\igfxtray.exe
C:\Windows\System32\hkcmd.exe
C:\Windows\System32\igfxpers.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAAnotif.exe
C:\Windows\system32\igfxsrvc.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Cyberlink\Power2Go\CLMLSvc.exe
C:\Program Files\AVG\AVG9\avgtray.exe
C:\Windows\Samsung\PanelMgr\SSMMgr.exe
C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
C:\Program Files\ATK Hotkey\HControlUser.exe
C:\Program Files\Microsoft Money\System\Money Express.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BTTray.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CCC.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Windows\system32\wuauclt.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe
C:\Users\Ilaria\Desktop\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=0410&s=2&o=vp32&d=0909&m=easynote_rs66-m-001it
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=0410&s=2&o=vp32&d=0909&m=easynote_rs66-m-001it
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=0410&s=2&o=vp32&d=0909&m=easynote_rs66-m-001it
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=C:\Windows\system32\userinit.exe
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SmpcSys] C:\Program Files\Packard Bell\SetupMyPC\SmpSys.exe
O4 - HKLM\..\Run: [IgfxTray] C:\Windows\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\Windows\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\Windows\system32\igfxpers.exe
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [IAAnotif] C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [CLMLServer] "C:\Program Files\Cyberlink\Power2Go\CLMLSvc.exe"
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [Windows Mobile-based device management] %windir%\WindowsMobile\wmdSync.exe
O4 - HKLM\..\Run: [Samsung PanelMgr] C:\Windows\Samsung\PanelMgr\SSMMgr.exe /autorun
O4 - HKLM\..\Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
O4 - HKLM\..\Run: [HControlUser] "C:\Program Files\ATK Hotkey\HcontrolUser.exe"
O4 - HKLM\..\Run: [SpywareTerminator] "C:\Program Files\Spyware Terminator\SpywareTerminatorShield.exe"
O4 - HKCU\..\Run: [MoneyAgent] "C:\Program Files\Microsoft Money\System\Money Express.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [SmpcSys] C:\Program Files\PACKARD BELL\SetUpMyPC\SmpSys.exe
O4 - HKCU\..\Run: [SpywareTerminatorUpdate] "C:\Program Files\Spyware Terminator\SpywareTerminatorUpdate.exe"
O4 - Global Startup: BTTray.lnk = ?
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Translate - {87680762-4A83-11B4-885B-0000E8ECA40F} - C:\Program Files\LingoCom\Translator.lnk
O9 - Extra 'Tools' menuitem: LingoWare Translator... - {87680762-4A83-11B4-885B-0000E8ECA40F} - C:\Program Files\LingoCom\Translator.lnk
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{AA7A4489-8366-40FF-87EF-908EEC6E9B1B}: NameServer = 192.168.1.1
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~1\GOEC62~1.DLL,avgrsstx.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: Empowering Technology Service (ETService) - Unknown owner - C:\Program Files\Packard Bell\Packard Bell Recovery Management\Service\ETService.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Program Files\Intel\WiFi\bin\EvtEng.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\Common Files\PCSuite\Services\ServiceLayer.exe
O23 - Service: Spyware Terminator Realtime Shield Service (sp_rssrv) - Crawler.com - C:\Program Files\Spyware Terminator\sp_rsser.exe

--
End of file - 7744 bytes

come prima cosa direi di controllare nel registro degli eventi (pannello di controllo-->strumenti di amministrazione-->visualizzatore eventi-->registri di windows) se compaiono registrazioni relative agli stessi.

niente di rilevante fra gli eventi.
potresti provare a ripristinare il sistema ad una data antecedente l'inizio delle problematiche. Perderesti ovviamente tutto quello che hai fatto nel frattempo (aggiornamenti, installazioni software..)

Eseguiti aggiornameti, sembra non bloccarsi più ma credo sia troppo presto per parla.... ho notato però un AVVISO ed un ERRORE nel registro, che di seguito riporto:

Avviso Winlogon ID evento 6000
Sottoscrittore delle notifiche di Winlogon <GPClient>: impossibile gestire un evento di notifica.
Nome registro: Application
Origine: Microsoft-Windows-Winlogon
Data: 05/09/2010 14.36.11
ID evento: 6000
Categoria attività:Nessuno
Livello: Avviso
Parole chiave: Classico
Utente: N/D
Computer: PC-Ilaria
Descrizione:
Sottoscrittore delle notifiche di Winlogon <GPClient>: impossibile gestire un evento di notifica.
XML evento:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Winlogon" Guid="{DBE9B383-7CF3-4331-91CC-A3CB16A3B538}" EventSourceName="Wlclntfy" />
<EventID Qualifiers="32768">6000</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-09-05T12:36:11.000Z" />
<EventRecordID>10815</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>PC-Ilaria</Computer>
<Security />
</System>
<EventData>
<Data>GPClient</Data>
<Binary>D9060000</Binary>
</EventData>
</Event>

ed inoltre un errore:

Nome registro: Application
Origine: Microsoft-Windows-EventSystem
Data: 05/09/2010 13.15.54
ID evento: 4609
Categoria attività:Sistema di gestione degli eventi
Livello: Errore
Parole chiave: Classico
Utente: N/D
Computer: PC-Ilaria
Descrizione:
Il sistema di gestione degli eventi COM+ ha rilevato un codice restituito non valido durante l'elaborazione interna. Valore HRESULT 8007043c nella riga 45 di d:\vistasp1_gdr\com\complus\src\events\tier1\eventsystemobj.cpp. Comunicare il problema al Servizio Supporto Tecnico Clienti Microsoft.
XML evento:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-EventSystem" Guid="{899daace-4868-4295-afcd-9eb8fb497561}" EventSourceName="EventSystem" />
<EventID Qualifiers="49152">4609</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>16</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-09-05T11:15:54.000Z" />
<EventRecordID>10807</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>PC-Ilaria</Computer>
<Security />
</System>
<EventData>
<Data Name="param1">d:\vistasp1_gdr\com\complus\src\events\tier1\eventsystemobj.cpp</Data>
<Data Name="param2">45</Data>
<Data Name="param3">8007043c</Data>
</EventData>
</Event>


Grazie dei consigli... :))