Lags intempestif sur Windows XP...

détail toutes ta config pour commencer
ton proc est il overclocké? si oui c'est stable?
check les températures de tes différents composants(avec HW Monitor par exemple)
post un log HijackThis

Tu n'utlisirais pas un SSD comme DD system ?  

Merci de vos réponses, alors thor tout d'abord je n'y connait presque rien en informatique... Ma config:

AMD Sempron processor
3100+
1.81GHz, 1,00 Go de RAM
Windows XP pro

J'ai un disque dur externe "Neo Nex electronic optical"

Rapport Hijackthis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:29:29, on 20/03/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16791)
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\system32\spoolsv.exe
D:\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\Program Files\Google\Update\GoogleUpdate.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\system32\nvraidservice.exe
C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe
D:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
C:\WINDOWS\system32\RUNDLL32.EXE
D:\Avira\AntiVir PersonalEdition Classic\sched.exe
C:\WINDOWS\system32\ctfmon.exe
D:\PowerArchiver\PASTARTER.EXE
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
D:\valve\steam\steam.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
D:\Spybot - Search & Destroy\TeaTimer.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Bonjour\mDNSResponder.exe
D:\Program Files\CDBurnerXP\NMSAccessU.exe
D:\Hercules\Tunes Explorer\HTunesExplorerWireless.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\wbem\unsecapp.exe
C:\Program Files\Fichiers communs\Teleca Shared\Generic.exe
C:\Program Files\Sony Ericsson\Mobile2\Mobile Phone Monitor\epmworker.exe
D:\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\wuauclt.exe
D:\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.conduit.com?SearchSource=10&ctid=CT789896
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: (no name) - {9CB65206-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
R3 - URLSearchHook: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
R3 - URLSearchHook: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
R3 - URLSearchHook: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
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: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
O2 - BHO: AskBar BHO - {201f27d4-3704-41d6-89c1-aa35e39143ed} - C:\Program Files\AskBarDis\bar\bin\askBar.dll
O2 - BHO: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Ask Search Assistant BHO - {9CB65201-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.0.926.3450\swg.dll
O2 - BHO: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
O2 - BHO: Ask Toolbar BHO - {FE063DB1-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: Ask Toolbar - {FE063DB9-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
O3 - Toolbar: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
O3 - Toolbar: Ask Toolbar - {3041d03e-fd4b-44e0-b742-2d9b88305f98} - C:\Program Files\AskBarDis\bar\bin\askBar.dll
O3 - Toolbar: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NVRaidService] C:\WINDOWS\system32\nvraidservice.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Sony Ericsson PC Suite] "C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe" /startoptions
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "D:\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "D:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\FICHIE~1\INSTAL~1\UPDATE~1\isuspm.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [PowerArchiver Tray] D:\PowerArchiver\PASTARTER.EXE
O4 - HKCU\..\Run: [Steam] "d:\valve\steam\steam.exe" -silent
O4 - HKCU\..\Run: [SpybotSD TeaTimer] D:\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (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 - Global Startup: Tunes Explorer.lnk = D:\Hercules\Tunes Explorer\HTunesExplorerWireless.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://D:\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\SPYBOT~1\SDHelper.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/windowsupdate/v6/V5Cont...
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
O23 - Service: AntiVir PersonalEdition Classic Scheduler (AntiVirScheduler) - Avira GmbH - D:\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - Avira GmbH - D:\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Google Update Service (gupdate1c98bac563576f0) (gupdate1c98bac563576f0) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Service de l’iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - D:\ma-config.com\maconfservice.exe
O23 - Service: NMSAccessU - Unknown owner - D:\Program Files\CDBurnerXP\NMSAccessU.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

--
End of file - 9721 bytes



Enfin pour ta partie
"ton proc est il overclocké? si oui c'est stable?
check les températures de tes différents composants"
je suis désolé mais je comprends pas tout lol...

allô... quelqu'un pour m'aider?

c'est le bordel dans ton pc!
apparemment t'a 2 antivirus d'installé(ou tu en a mal désinstallé un)
vire AVG7 pour pas créer de conflit avec Antivir

installe(si pas déja fait) Spybot et Malwarebytes, mets les à jour, redémarre en mode sans échec, scan ton pc avec ces 2 antispywares, supprime s'ils trouvent des indésirables
redémarre en mode normal et repost un log HijackThis

Voila j'ai tout fait, malware truc a trouvé un virus et il a été supprimé.

Nouveau log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 17:35:22, on 22/03/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16791)
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\system32\spoolsv.exe
D:\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Google\Update\GoogleUpdate.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\system32\nvraidservice.exe
C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe
C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
D:\Avira\AntiVir PersonalEdition Classic\sched.exe
D:\Adobe\Reader 8.0\Reader\Reader_sl.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
D:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Fichiers communs\Teleca Shared\CapabilityManager.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
D:\Program Files\CDBurnerXP\NMSAccessU.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\ctfmon.exe
D:\PowerArchiver\PASTARTER.EXE
D:\valve\steam\steam.exe
D:\Spybot - Search & Destroy\TeaTimer.exe
D:\Hercules\Tunes Explorer\HTunesExplorerWireless.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\wbem\unsecapp.exe
D:\Mozilla Firefox\firefox.exe
D:\Trend Micro\HijackThis\HijackThis.exe
C:\WINDOWS\system32\wuauclt.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.conduit.com?SearchSource=10&ctid=CT789896
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: (no name) - {9CB65206-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
R3 - URLSearchHook: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
R3 - URLSearchHook: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
R3 - URLSearchHook: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
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: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
O2 - BHO: AskBar BHO - {201f27d4-3704-41d6-89c1-aa35e39143ed} - C:\Program Files\AskBarDis\bar\bin\askBar.dll
O2 - BHO: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Ask Search Assistant BHO - {9CB65201-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.0.926.3450\swg.dll
O2 - BHO: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
O2 - BHO: Ask Toolbar BHO - {FE063DB1-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: Ask Toolbar - {FE063DB9-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
O3 - Toolbar: IsoBuster Toolbar - {266fcdca-7bb3-4da7-b3bf-f845dea2ebd6} - C:\Program Files\IsoBuster\tbIso1.dll
O3 - Toolbar: Ask Toolbar - {3041d03e-fd4b-44e0-b742-2d9b88305f98} - C:\Program Files\AskBarDis\bar\bin\askBar.dll
O3 - Toolbar: Secured eMule Toolbar - {1d1b60fd-b21f-4b9a-8a5f-64e8544828d7} - C:\Program Files\Secured_eMule\tbSec1.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NVRaidService] C:\WINDOWS\system32\nvraidservice.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Sony Ericsson PC Suite] "C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe" /startoptions
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "D:\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "D:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\FICHIE~1\INSTAL~1\UPDATE~1\isuspm.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [PowerArchiver Tray] D:\PowerArchiver\PASTARTER.EXE
O4 - HKCU\..\Run: [Steam] "d:\valve\steam\steam.exe" -silent
O4 - HKCU\..\Run: [SpybotSD TeaTimer] D:\Spybot - Search & Destroy\TeaTimer.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 - Global Startup: Tunes Explorer.lnk = D:\Hercules\Tunes Explorer\HTunesExplorerWireless.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://D:\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\SPYBOT~1\SDHelper.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/windowsupdate/v6/V5Cont...
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
O23 - Service: AntiVir PersonalEdition Classic Scheduler (AntiVirScheduler) - Avira GmbH - D:\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - Avira GmbH - D:\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Google Update Service (gupdate1c98bac563576f0) (gupdate1c98bac563576f0) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Service de l’iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - D:\ma-config.com\maconfservice.exe
O23 - Service: NMSAccessU - Unknown owner - D:\Program Files\CDBurnerXP\NMSAccessU.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

--
End of file - 9126 bytes

relance HijackThis, clic sur "Do a system scan only" et coche les lignes suivantes :

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.conduit.com?SearchSo [...] d=CT789896
R3 - URLSearchHook: (no name) - {9CB65206-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Ask Search Assistant BHO - {9CB65201-89C4-402c-BA80-02D8C59F9B1D} - C:\Program Files\AskTBar\SrchAstt\1.bin\A5SRCHAS.DLL (file missing)
O2 - BHO: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)
O2 - BHO: Ask Toolbar BHO - {FE063DB1-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: Ask Toolbar - {FE063DB9-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: free-downloads.net Toolbar - {ecdee021-0d17-467f-a1ff-c7a115230949} - C:\Program Files\free-downloads.net\tbfree.dll (file missing)

et clic sur "Fix Checked"

redémarre le pc et regarde si ça lag encore(car c'est peut-être un problème matériel)

tu utilse Firefox ou IE pour ta naviguation internet?

Ba ça à l'air de plus faire de freeze!! Je te remercie grandement mon cher thor. Et j'ai Firefox, c'est embêtant?

non, c'est nickel!  

Bon, finalement ça galère encore...du jour au lendemain c'est arrivé! Quelqu'un à une idée??

c'est peut-être un problème matériel(alim délivrant des tensions pas stable)
lance OCCT pendant 30 min pour voir si ton pc est stable

Ton logiciel m'a dit qu'il n'y avait pas de problème, j'ai plein de graph maintenant trop beau! Autre idée?