çà rame au demarrage

bonjour,

mon pc rame au demmarrage je vous joins un raport HijackThis.
Quelles en sont les causes?

Logfile of HijackThis v1.99.0
Scan saved at 09:40:38, on 06/02/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Fichiers communs\EPSON\EBAPI\SAgent2.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\PROGRA~1\MESSAG~1\StartMessager.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\WINDOWS\System32\P2P Networking\P2P Networking.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\ICQ\NDetect.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\BITWARE\NT\bwprnmon.exe
C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\ntvdm.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\System32\wuauclt.exe
C:\WINDOWS\$NtUninstallQ328940$\msconfig.exe
C:\Program Files\Symantec\LiveUpdate\LUALL.EXE
C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
C:\PROGRA~1\Symantec\LIVEUP~1\LUUPDATE.EXE
C:\WINDOWS\System32\msiexec.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Documents and Settings\kouba\Local Settings\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\NeroCheck.exe
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] C:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [P2P Networking] C:\WINDOWS\System32\P2P Networking\P2P Networking.exe /AUTOSTART
O4 - HKLM\..\Run: [Eac_Download] C:\Program Files\Fichiers communs\eAcceleration\download.exe -k
O4 - HKLM\..\Run: [Alogserv] C:\Program Files\McAfee\McAfee VirusScan\alogserv.exe
O4 - HKLM\..\Run: [AdStatus Service] C:\Program Files\AdStatus Service\AdStatServ.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\RunOnce: [LUSETUP-LT] C:\PROGRA~1\Symantec\LIVEUP~1\LUSETU~1.EXE -s -a -q -log
O4 - HKCU\..\Run: [Mirabilis ICQ] C:\Program Files\ICQ\NDetect.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Global Startup: BitWare Print Monitor.lnk = C:\BITWARE\NT\bwprnmon.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O12 - Plugin for .mid: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1100542822264
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2003120501/housecall.antivirus.com/housecall/xscan53.cab
O16 - DPF: {7DBFDA8E-D33B-11D4-9269-00600868E56E} (WWWInstall Class) - http://go.securelive.com/speed/WebInstall.dll
O16 - DPF: {AE1C01E3-0283-11D3-9B3F-00C04F8EF466} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique - Unknown - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: EPSON Printer Status Agent2 - SEIKO EPSON CORPORATION - C:\Program Files\Fichiers communs\EPSON\EBAPI\SAgent2.exe
O23 - Service: Journal des événements - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Service COM de gravage de CD IMAPI - Unknown - C:\WINDOWS\System32\imapi.exe
O23 - Service: Macromedia Licensing Service - Unknown - C:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Partage de Bureau à distance NetMeeting - Unknown - C:\WINDOWS\System32\mnmsrvc.exe
O23 - Service: Norton AntiVirus Auto-Protect Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: DDE réseau - Unknown - C:\WINDOWS\system32\netdde.exe
O23 - Service: DSDM DDE réseau - Unknown - C:\WINDOWS\system32\netdde.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: NVIDIA Display Driver Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Plug-and-Play - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Gestionnaire de session d'aide sur le Bureau à distance - Unknown - C:\WINDOWS\system32\sessmgr.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Prise en charge des cartes à puces - Unknown - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Carte à puce - Unknown - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: Cliché instantané de volume - Unknown - C:\WINDOWS\System32\vssvc.exe
O23 - Service: Carte de performance WMI - Unknown - C:\WINDOWS\System32\wbem\wmiapsrv.exe