Urgent probleme de demarrage

Bonjour,
Mon ordi a plante au demarrage et est tres lent malgré 4giga de ram et de tres bonnes cartes graphiques et videos
Voici mon rapport hijackLogfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:06:05, on 09/04/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16608)
Boot mode: Normal

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:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Intel\AMT\atchksrv.exe
C:\Program Files\Fichiers communs\Autodesk Shared\Service\AdskScSrv.exe
C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
C:\Program Files\Intel\AMT\LMS.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Autodesk\VIZ2007\mentalray\satellite\raysat_3dsmax8server.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Intel\AMT\UNS.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Program Files\Adobe\Adobe Photoshop CS2\Photoshop.exe
C:\DOCUME~1\jerome\LOCALS~1\Temp\Adobelm_Cleanup.0001
C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
C:\DOCUME~1\jerome\LOCALS~1\Temp\Adobelm_Cleanup.0001
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Documents and Settings\jerome\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.update.microsoft.com/windowsupdate/v6/default.aspx
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [04697886] rundll32.exe "C:\WINDOWS\system32\ttymjydd.dll",b
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - Global Startup: Accélérateur de démarrage AutoCAD.lnk = C:\Program Files\Fichiers communs\Autodesk Shared\acstart16.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = serveur.vendee-bureau.fr
O17 - HKLM\Software\..\Telephony: DomainName = serveur.vendee-bureau.fr
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = serveur.vendee-bureau.fr
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = serveur.vendee-bureau.fr
O17 - HKLM\System\CS3\Services\Tcpip\Parameters: Domain = serveur.vendee-bureau.fr
O23 - Service: Intel(R) Active Management Technology System Status Service (atchksrv) - Intel Corporation - C:\Program Files\Intel\AMT\atchksrv.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
O23 - Service: Intel(R) Active Management Technology Local Management Service (LMS) - Intel - C:\Program Files\Intel\AMT\LMS.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe
O23 - Service: Intel(R) Active Management Technology User Notification Service (UNS) - Intel - C:\Program Files\Intel\AMT\UNS.exe