Ordinateur plus lent depuis 1 semaine

Bonjour,

je constate que mon ordinateur est de plus en plus lent, voici le contenu
j'ai défragmenté, j'ai utilisé ccleaner...j'ai changé avast pour AVG antivirus, erreur?
MERCI D'AVANCE de votre aide, j'en peux plus de la lenteur


csLogfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:36:21, on 04/04/2009
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\csrss.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
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\Program Files\Broadcom\BACS\BPowMon.exe
C:\Program Files\Microsoft SQL Server\MSSQL\Binn\sqlservr.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\USBToolbox\Res.EXE
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\SuperCopier2\SuperCopier2.exe
C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
E:\Program Files\PartyGaming.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\RegCleaner\RegCleanr.exe
C:\Program Files\CCleaner\CCleaner.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\AVG\AVG8\aAvgApi.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://guysen.com/
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: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (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: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - E:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: BHO Barre de Confiance - {988B07F5-7392-455A-8A1F-64935CB8B6ED} - C:\Program Files\BarreConfCMCIC\TAPBar.dll
O2 - BHO: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\PROGRA~1\AVG\AVG8\avgtoolbar.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files\Google\Google Toolbar\GoogleToolbar.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.0.926.3450\swg.dll
O2 - BHO: Google Dictionary Compression sdch - {C84D72FE-E17D-4195-BB24-76C02E2E7C4E} - C:\Program Files\Google\Google Toolbar\Component\fastsearch_219B3E1547538286.dll
O3 - Toolbar: Barre de confiance - {55BDF3B0-C0A8-481A-B8A6-01CD2BE0F3FD} - C:\Program Files\BarreConfCMCIC\TAPBar.dll
O3 - Toolbar: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\PROGRA~1\AVG\AVG8\avgtoolbar.dll
O3 - Toolbar: &Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files\Google\Google Toolbar\GoogleToolbar.dll
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\\PSDrvCheck.exe
O4 - HKCU\..\Run: [SuperCopier2.exe] C:\Program Files\SuperCopier2\SuperCopier2.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE"
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\RunOnce: [Shockwave Updater] "C:\WINDOWS\system32\Adobe\Shockwave 11\SwHelper_1100465.exe" -Update -1100465 -"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322)" -"http://www.jeuxdefoot.net/jeux/56/breakaway.html"
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: Msde 2000.lnk = C:\Program Files\Microsoft SQL Server\80\Tools\Binn\scm.exe
O8 - Extra context menu item: Convertir les liens sélectionnés en fichier Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Créer un Favori de l'appareil mobile - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - E:\Program Files\PartyPoker\RunApp.exe
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - E:\Program Files\PartyPoker\RunApp.exe
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - E:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - E:\PROGRA~1\Spybot - Search & Destroy\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://update.microsoft.com/...
O16 - DPF: {68C1822F-F5C7-4404-A73F-03C10E0E94DA} (telechargement-photoweb) - http://www2.photoweb.fr/telechargement/Photoweb_uploader.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} - http://charon777.free.fr/plugins/hardwaredetection.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {DAF94F73-2AA6-44D8-A562-A28831820D34} (Pixum EasyUploadX Control) - http://www.pixum.de/int/EasyUpload/ImgUploader.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: Broadcom Power monitoring service (BPowMon) - Broadcom Corp. - C:\Program Files\Broadcom\BACS\BPowMon.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\11\Intel 32\IDriverT.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Fichiers communs\Nero\Lib\NMIndexingService.exe
O23 - Service: Planificateur LiveUpdate automatique - Unknown owner - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe (file missing)
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Unknown owner - C:\Program Files\Fichiers communs\Ulead Systems\DVD\ULCDRSvr.exe (file missing)
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe