Voila, mon PC lag depuis un moment (internet, video, jeux video, applications, bref, partout) alors qu´avant tout allais pour le mieux, je l´es analysé avec Hijackthis et j´aimerais un petit coup de main, voila le rapport:

Logfile of HijackThis v1.99.1
Scan saved at 17:08:52, on 06/10/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
I:\WINDOWS\System32\smss.exe
I:\WINDOWS\system32\winlogon.exe
I:\WINDOWS\system32\services.exe
I:\WINDOWS\system32\lsass.exe
I:\WINDOWS\system32\Ati2evxx.exe
I:\WINDOWS\system32\svchost.exe
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
I:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
I:\WINDOWS\Explorer.EXE
I:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
I:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
I:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
I:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
I:\WINDOWS\system32\spoolsv.exe
I:\Program Files\Norton AntiVirus\navapsvc.exe
I:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
I:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
I:\WINDOWS\system32\svchost.exe
I:\WINDOWS\system32\UAService7.exe
I:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
I:\Program Files\QuickTime\qttask.exe
I:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
I:\WINDOWS\system32\RunDll32.exe
I:\Program Files\Cegetel\C-BOX\Wizard\QuickAccess.exe
I:\Program Files\Messenger\msmsgs.exe
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
I:\Program Files\Lavasoft\Ad-Aware SE Personal\Ad-Aware.exe
C:\HiJackThis\Scanner.exe
I:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
https://www.jeuxvideo.com/etajvbis.htm
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - I:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Norton Personal Firewall 2006 - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - I:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: (no name) - {B698284F-950A-4EF1-B90D-DAB6FD95754A} - I:\WINDOWS\system32\gebcb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - i:\program files\google\googletoolbar2.dll (file missing)
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - I:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr\msntb.dll (file missing)
O3 - Toolbar: Norton AntiVirus - {C4069E3A-68F1-403E-B40E-20066696354B} - I:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton Personal Firewall 2006 - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - I:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O4 - HKLM\..\Run: [SS1HelperStartUp] I:\PROGRA~1\SEASID~1\SS1HEL~1.EXE /partner SS1
O4 - HKLM\..\Run: [SunJavaUpdateSched] I:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [keyboard] c:\\kybrd.exe
O4 - HKLM\..\Run: [defender] C:\\dfndra.exe
O4 - HKLM\..\Run: [newname] c:\\nwnm.exe
O4 - HKLM\..\Run: [QuickTime Task] "I:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [ccApp] "I:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKCU\..\Run: [Configuration de la C-BOX] I:\Program Files\Cegetel\C-BOX\Wizard\QuickAccess.exe
O4 - HKCU\..\Run: [sys_up1] I:\Program Files\Common Files\svchostsys\svchostsys.exe
O4 - HKCU\..\Run: [MSMSGS] "I:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [WINSOS VERIFY] "I:\Program Files\Winsos\WINSOS.EXE" MINI
O8 - Extra context menu item: &Google Search - res
://i:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel -
res://I:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000

O8 - Extra context menu item: Pages liées - res://
i:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - r
es://i:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page a
ctuelle disponible dans le cache Google - res://i:\program files\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - I:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) -
http://messenger.zone.msn.com/binary/MineSweeper.cab31267.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) -
http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {9122D757-5A4F-4768-82C5-B4171D8556A7} (PhotoPickConvert Class) -
http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/PhotoSwap/PhtPkMSN.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - I:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - I:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: gebcb - I:\WINDOWS\system32\gebcb.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - I:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Internet Security Password Validation (ccISPwdSvc) - Symantec Corporation - I:\Program Files\Norton Personal Firewall\ccPwdSvc.exe
O23 - Service: Symantec Network Proxy (ccProxy) - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: LiveUpdate - Symantec Corporation - I:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Service Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - I:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - I:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: Planificateur LiveUpdate automatique - Symantec Corporation - I:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Symantec AVScan (SAVScan) - Symantec Corporation - I:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: SPBBCSvc - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - I:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: SecuROM User Access Service (V7) (UserAccess7) - Sony DADC Austria AG. - I:\WINDOWS\system32\UAService7.exe

J´espere que quelqu´un pourra m´aider, merci d´avance...