Ordi lent, tout essayé, voici rapport

Bonjour,
j'ai des problemes avec mon ordi. Il est tres lent !! J'ai essayé plein de trucs : ccleaner, nettoyer mon disque, defragmenter. anti-virus (sophos), adaware, spybot. Voici mon rapport hijackthis:
J'espere que vous pourrez m'aider ! merci

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:40:57, on 2008-09-09
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16705)
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:\WINDOWS\Explorer.EXE
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe
C:\Program Files\Sophos\AutoUpdate\ALsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\BitDefender\BitDefender 2009\bdagent.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\BitDefender\BitDefender 2009\seccenter.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\BitDefender\BitDefender 2009\vsserv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\BitDefender\BitDefender Update Service\livesrv.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\Isabella\Bureau\sauveur.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.ca/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: (no name) - {BC4FFE41-DE9F-46fa-B455-AAD49B9F9938} - (no file)
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll (file missing)
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: EWPBrowseObject Class - {68F9551E-0411-48E4-9AAF-4BC42A6A46BE} - C:\Program Files\Canon\Easy-WebPrint\EWPBrowseLoader.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Program Files\Canon\Easy-WebPrint\Toolband.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: BitDefender Toolbar - {381FFDE8-2394-4f90-B10D-FC6124A40F8C} - C:\Program Files\BitDefender\BitDefender 2009\IEToolbar.dll
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [BDAgent] "C:\Program Files\BitDefender\BitDefender 2009\bdagent.exe"
O4 - HKLM\..\Run: [BitDefender Antiphishing Helper] "C:\Program Files\BitDefender\BitDefender 2009\IEShow.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [RamBoostXp] C:\Program Files\RamBoost XP\rambxpfr.exe
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 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - .DEFAULT User Startup: IEHOME.LNK = C:\Documents and Settings\Default User\Local Settings\Temp\iehome.bat (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
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: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} - http://a1540.g.akamai.net/7/1540/52/20061205/qtinstall.info.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} -
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w3/pr01/resources/MSNPUpld.cab
O16 - DPF: {5C6698D9-7BE4-4122-8EC5-291D84DBD4A0} (Facebook Photo Uploader 4 Control) - http://upload.facebook.com/controls/FacebookPhotoUploader3.cab
O16 - DPF: {62475759-9E84-458E-A1AB-5D2C442ADFDE} - http://a1540.g.akamai.net/7/1540/52/20040105/qtinstall.info.apple.com/mickey/fr/win/QuickTimeInstaller.exe
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {CE69F98F-2AF3-4306-BAC6-A79070EDA1B4} (Zylom Loader Object) - http://eu.download.games.yahoo.com/zylom/activex/zylomloader.cab
O20 - AppInit_DLLs: C:\PROGRA~1\Sophos\SOPHOS~1\SOPHOS~1.DLL
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: BitDefender Arrakis Server (Arrakis3) - BitDefender S.R.L. https://www.bitdefender.fr/ - C:\Program Files\Fichiers communs\BitDefender\BitDefender Arrakis Server\bin\Arrakis3.exe
O23 - Service: Kaspersky Anti-Virus 6.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - BitDefender SRL - C:\Program Files\Fichiers communs\BitDefender\BitDefender Update Service\livesrv.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Planificateur LiveUpdate automatique - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Créateur de rapports d'état Sophos Anti-Virus (SAVAdminService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe
O23 - Service: Sophos Anti-Virus (SAVService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SavService.exe
O23 - Service: Sophos AutoUpdate Service - Sophos Plc - C:\Program Files\Sophos\AutoUpdate\ALsvc.exe
O23 - Service: TOSHIBA Application Service (TAPPSRV) - TOSHIBA Corp. - C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
O23 - Service: BitDefender Virus Shield (VSSERV) - BitDefender S. R. L. - C:\Program Files\BitDefender\BitDefender 2009\vsserv.exe