Rapport Hijackthis

Bonjour,
J'ai depuis l'achat de mon pc un plantage incessant, j'ai cru que c'était un beug, alors j'ai formater et réinstaller mon Xp, puis j'ai changer est je suis passer en 64bit, j'ai lancer une analyse antivirus avec Avast : Rien, et avec Ad-aware c'est pareil, j'ai lancer un rapport Hijackthis voilà le résultat :

Logfile of Trend Micro HijackThis v2.0.2
Platform: Windows 2003 SP2 (WinNT 5.02.3790)
MSIE: Internet Explorer v6.00 SP2 (6.00.3790.1830)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\vVX1000.exe
C:\Program Files (x86)\Bonjour\mDNSResponder.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files (x86)\Java\jre1.6.0_05\bin\jusched.exe
C:\Program Files (x86)\iTunes\iTunesHelper.exe
C:\Program Files (x86)\Common Files\Realtime Soft\RTSHookInterop\x32\RTSHookInterop.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files (x86)\iPod\bin\iPodService.exe
C:\Documents and Settings\Administrator\Desktop\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
F2 - REG:system.ini: UserInit=userinit
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [amd_dc_opt] "C:\Program Files (x86)\AMD\amd_dc_opt\amd_dc_opt.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files (x86)\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [LifeCam] "C:\Program Files (x86)\Microsoft LifeCam\LifeExp.exe"
O4 - HKCU\..\Run: [UltraMon] "C:\Program Files\UltraMon\UltraMon.exe" /auto
O4 - HKUS\S-1-5-19\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'Default user')
O4 - Startup: LimeWire On Startup.lnk = C:\Program Files (x86)\LimeWire\LimeWire.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.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
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program Files (x86)\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\system32\Ati2evxx.exe (file missing)
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2saag.exe
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: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files (x86)\Bonjour\mDNSResponder.exe
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - Unknown owner - C:\WINDOWS\System32\dmadmin.exe (file missing)
O23 - Service: Event Log (Eventlog) - Unknown owner - C:\WINDOWS\system32\services.exe (file missing)
O23 - Service: HTTP SSL (HTTPFilter) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: IMAPI CD-Burning COM Service (ImapiService) - Unknown owner - C:\WINDOWS\system32\imapi.exe (file missing)
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files (x86)\iPod\bin\iPodService.exe
O23 - Service: Distributed Transaction Coordinator (MSDTC) - Unknown owner - C:\WINDOWS\system32\msdtc.exe (file missing)
O23 - Service: Net Logon (Netlogon) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: NT LM Security Support Provider (NtLmSsp) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Plug and Play (PlugPlay) - Unknown owner - C:\WINDOWS\system32\services.exe (file missing)
O23 - Service: IPSEC Services (PolicyAgent) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Protected Storage (ProtectedStorage) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Remote Desktop Help Session Manager (RDSessMgr) - Unknown owner - C:\WINDOWS\system32\sessmgr.exe (file missing)
O23 - Service: Security Accounts Manager (SamSs) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - Unknown owner - C:\WINDOWS\System32\TuneUpDefragService.exe (file missing)
O23 - Service: Virtual Disk Service (vds) - Unknown owner - C:\WINDOWS\System32\vds.exe (file missing)
O23 - Service: Volume Shadow Copy (VSS) - Unknown owner - C:\WINDOWS\System32\vssvc.exe (file missing)
O23 - Service: WMI Performance Adapter (WmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\wmiapsrv.exe (file missing)