Werfault.exe

Bonjour, j'ai un problème avec Werfault.exe.
Impossible d'ouvrir un navigateur. Dès que j'essaye d'en ouvrir un le message suivant apparait: Firefox, ou internet explorer à cessé de fonctionner,
et aprés surviens l'erreur d'application Werfault.exe :
"L'exception unknown software exception (0xc0000005) s'est produite dans l'application à l'emplacement 0x00501a08. Cliquez sur ok pour terminer le programme".

Sur les conseils de DeNisCoOl sur un sujet similaire, j'ai réalisé un rapport avec HiJackThis.exe :


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:33:06, on 12/10/2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18294)
Boot mode: Safe mode with network support

Running processes:
C:\Users\Marie\Desktop\Scanner.exe.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=040c&s=1&o=vp64&d=0609&m=aspire_m3710
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://homepage.acer.com/rdr.aspx?b=ACAW&l=040c&s=1&o=vp64&d=0609&m=aspire_m3710
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=040c&s=1&o=vp64&d=0609&m=aspire_m3710
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.acer.com/rdr.aspx?b=ACAW&l=040c&s=1&o=vp64&d=0609&m=aspire_m3710
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files (x86)\Yahoo!\Companion\Installs\cpn\yt.dll (file missing)
F2 - REG:system.ini: UserInit=userinit.exe
O1 - Hosts: ::1 localhost
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files (x86)\Yahoo!\Companion\Installs\cpn\yt.dll (file missing)
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar.dll (file missing)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll (file missing)
O2 - BHO: Google Dictionary Compression sdch - {C84D72FE-E17D-4195-BB24-76C02E2E7C4E} - C:\Program Files (x86)\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll (file missing)
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Program Files (x86)\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll (file missing)
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar.dll (file missing)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files (x86)\Yahoo!\Companion\Installs\cpn\yt.dll (file missing)
O4 - HKLM\..\Run: [BkupTray] "C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\BkupTray.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files (x86)\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [WarReg_PopUp] "C:\Program Files (x86)\Acer\WR_PopUp\WarReg_PopUp.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [ccleaner] "C:\Program Files (x86)\CCleaner\CCleaner.exe" /AUTO
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wpclsp.dll
O13 - Gopher Prefix:
O18 - Filter: x-sdch - {B1759355-3EEC-4C1E-B0F1-B719FE26E377} - C:\Program Files (x86)\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati External Event Utility - Unknown owner - C:\Windows\system32\Ati2evxx.exe (file missing)
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: NTI Backup Now 5 Agent Service (BUNAgentSvc) - NewTech Infosystems, Inc. - C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\Client\Agentsvc.exe
O23 - Service: @dfsrres.dll,-101 (DFSR) - Unknown owner - C:\Windows\system32\DFSR.exe (file missing)
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
O23 - Service: Google Software Updater (gusvc) - Unknown owner - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe (file missing)
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files (x86)\Common Files\LightScribe\LSSrvc.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
O23 - Service: NTI Backup Now 5 Backup Service (NTIBackupSvc) - NewTech InfoSystems, Inc. - C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\BackupSvc.exe
O23 - Service: NTI Backup Now 5 Scheduler Service (NTISchedulerSvc) - Unknown owner - C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\SchedulerSvc.exe
O23 - Service: Control Parental (OPTENET_FILTER) - Contrôle Parental - C:\Program Files (x86)\Controle Parental\bin\optproxy.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\SLsvc.exe,-101 (slsvc) - Unknown owner - C:\Windows\system32\SLsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)