Ralentissements très lents...

Bonjour,
depuis quelque temps mon pc est comme qui dirait malade :( il a de gros ralentissements et pas mal de plantage... est-ce la grippe ou juste un rhume ? je poste un rapport HijackThis au cas où...

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:48:30, on 25/06/2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16674)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
D:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
D:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\system32\dllhost.exe
C:\Program Files\Microsoft SQL Server\90\Shared\sqlwriter.exe
C:\Program Files\Fichiers communs\Softwin\BitDefender Communicator\xcommsvr.exe
C:\Program Files\Fichiers communs\Softwin\BitDefender Update Service\livesrv.exe
C:\Program Files\Fichiers communs\Softwin\BitDefender Scan Server\bdss.exe
C:\Program Files\Softwin\BitDefender9\vsserv.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\progra~1\softwin\bitdef~1\bdswitch.exe
C:\progra~1\softwin\bitdef~1\bdmcon.exe
C:\progra~1\softwin\bitdef~1\bdnagent.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Documents and Settings\Valentin\Bureau\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Orange
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: (no name) - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - (no file)
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O2 - BHO: Catcher Class - {ADECBED6-0366-4377-A739-E69DFBA04663} - D:\Program Files\Moyea\FLV Downloader\MoyeaCth.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O3 - Toolbar: Veoh Browser Plug-in - {D0943516-5076-4020-A3B5-AEFAF26AB263} - D:\Program Files\Veoh Networks\Veoh\Plugins\reg\VeohToolbar.dll
O4 - HKLM\..\Run: [BDOESRV] "C:\Program Files\Softwin\BitDefender9\bdoesrv.exe"
O4 - HKLM\..\Run: [BDSwitchAgent] "C:\progra~1\softwin\bitdef~1\bdswitch.exe"
O4 - HKLM\..\Run: [Ptipbmf] rundll32.exe ptipbmf.dll,SetWriteCacheMode
O4 - HKLM\..\Run: [BDMCon] c:\PROGRA~1\softwin\BITDEF~1\bdmcon.exe
O4 - HKLM\..\Run: [BDNewsAgent] "C:\progra~1\softwin\bitdef~1\bdnagent.exe"
O4 - HKLM\..\Run: [QuickTime Task] "D:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [WOOTASKBARICON] ;
O4 - HKLM\..\Run: [WOOWATCH] ;
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Warez] ;
O4 - HKCU\..\Run: [WOOKIT] ;
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-1-5-21-842925246-527237240-725345543-1003\..\Run: [NBJ] "D:\Program Files\Ahead\Nero BackItUp\NBJ.exe" (User 'Propriétaire')
O4 - HKUS\S-1-5-21-842925246-527237240-725345543-1003\..\Run: [qcqgickss] c:\documents and settings\propriétaire.perso-afc55ba27\local settings\application data\qcqgickss.exe qcqgickss (User 'Propriétaire')
O4 - HKUS\S-1-5-18\..\Run: [iLike] C:\Program Files\iLike\1.1.41\ilikesidebar.exe /checkforupdate (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [iLike] C:\Program Files\iLike\1.1.41\ilikesidebar.exe /checkforupdate (User 'Default user')
O4 - S-1-5-21-842925246-527237240-725345543-1003 Startup: OpenOffice.org 2.4.lnk = C:\Program Files\OpenOffice.org 2.4\program\quickstart.exe (User 'Propriétaire')
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.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
O9 - Extra button: Orange - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - https://www.orange.fr/portail (file missing) (HKCU)
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - https://www.kaspersky.fr/?domain=webscanner.kaspersky.fr
O17 - HKLM\System\CCS\Services\Tcpip\..\{5CA48334-F34A-45FE-AEE1-0ED6E50BAB9D}: NameServer = 80.10.246.1,80.10.246.132
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - D:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - D:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: BitDefender Scan Server (bdss) - Unknown owner - C:\Program Files\Fichiers communs\Softwin\BitDefender Scan Server\bdss.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - SOFTWIN S.R.L. - C:\Program Files\Fichiers communs\Softwin\BitDefender Update Service\livesrv.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - D:\Program Files\ma-config.com\maconfservice.exe
O23 - Service: BitDefender Virus Shield (VSSERV) - SOFTWIN S.R.L. - C:\Program Files\Softwin\BitDefender9\vsserv.exe
O23 - Service: BitDefender Communicator (XCOMM) - Softwin - C:\Program Files\Fichiers communs\Softwin\BitDefender Communicator\xcommsvr.exe