Ralentissement

Bonjour, J'ai remarquer que mon ordinateur avait vraiment ralentis depuis 3 mois.
Est-ce normal ?
Puis-je y faire quelque chose ?
Voici un scan Hijackthis si nécessaire

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:40:31, on 14/04/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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
C:\WINDOWS\ATKKBService.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\sstray.exe
C:\WINDOWS\system32\ServoApp.exe
C:\Program Files\MFP Server\App\Common\MFPAgent.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Vista Drive Icon\DrvIcon.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Java\jre6\bin\jusched.exe
C:\windows\gxr_loc.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIEGE.EXE
D:\Program Files\BricoPacks\Vista Inspirat 2\UberIcon\UberIcon Manager.exe
F:\Mes Documents\Logiciels\Internet Download Manager\IDMan.exe
D:\Program Files\BricoPacks\Vista Inspirat 2\RocketDock\RocketDock.exe
D:\Program Files\BricoPacks\Vista Inspirat 2\YzShadow\YzShadow.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Windows Media Player\wmplayer.exe
C:\Program Files\Mozilla Firefox\firefox.exe
F:\Mes Documents\Téléchargement\Installations\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.msn.fr/spbasic.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - F:\Mes Documents\Logiciels\Internet Download Manager\IDMIECC.dll
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: IEVkbdBHO - {59273AB4-E7D3-40F9-A1A8-6FA9CCA1862C} - C:\Apps\Security\Kespersky Labs\Kesperrsky Internet Security\ievkbd.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Iminent.LinkToContent - {A6E9BAAF-53CD-4575-967B-2AF710A7D21F} - C:\Program Files\Iminent\IMBooster\Iminent.LinkToContent.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O4 - HKLM\..\Run: [nForce Tray Options] sstray.exe /r
O4 - HKLM\..\Run: [AVP] "C:\Apps\Security\Kespersky Labs\Kesperrsky Internet Security\avp.exe"
O4 - HKLM\..\Run: [Server Application] C:\WINDOWS\system32\ServoApp.exe
O4 - HKLM\..\Run: [GDI Manager] "C:\Program Files\MFP Server\App\Common\MFPAgent.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Apps\Office\Adobe reader\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [DrvIcon] C:\Program Files\Vista Drive Icon\DrvIcon.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [CloneCDTray] "C:\Program Files\SlySoft\CloneCD\CloneCDTray.exe" /s
O4 - HKLM\..\Run: [ctra] c:\windows\gxr_loc.exe
O4 - HKLM\..\Run: [IMBooster] C:\Program Files\Iminent\IMBooster\imbooster.exe /warmup
O4 - HKCU\..\Run: [ASUS SmartDoctor] C:\Program Files\ASUS\SmartDoctor\\SmartDoctor.exe /start
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [EPSON Stylus SX400 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIEGE.EXE /FU "C:\DOCUME~1\Chinal\LOCALS~1\Temp\E_S1CB.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [UberIcon] "D:\Program Files\BricoPacks\Vista Inspirat 2\UberIcon\UberIcon Manager.exe"
O4 - HKCU\..\Run: [AlcoholAutomount] "C:\Program Files\Alcohol Soft\Alcohol 120\axcmd.exe" /automount
O4 - HKCU\..\Run: [IDMan] F:\Mes Documents\Logiciels\Internet Download Manager\IDMan.exe /onboot
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 - Startup: RocketDock.lnk = D:\Program Files\BricoPacks\Vista Inspirat 2\RocketDock\RocketDock.exe
O4 - Startup: TransBar.lnk = D:\Program Files\BricoPacks\Vista Inspirat 2\TransBar\TransBar.exe
O4 - Startup: UberIcon.lnk = D:\Program Files\BricoPacks\Vista Inspirat 2\UberIcon\UberIcon Manager.exe
O4 - Startup: Y'z Shadow.lnk = D:\Program Files\BricoPacks\Vista Inspirat 2\YzShadow\YzShadow.exe
O8 - Extra context menu item: Ajouter à Kaspersky Anti-Bannière - C:\Apps\Security\Kespersky Labs\Kesperrsky Internet Security\ie_banner_deny.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\Apps\Office\MSOFFI~1\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Télécharger avec IDM - F:\Mes Documents\Logiciels\Internet Download Manager\IEExt.htm
O8 - Extra context menu item: Télécharger le contenu de video FLV avec IDM - F:\Mes Documents\Logiciels\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Télécharger tous les liens avec IDM - F:\Mes Documents\Logiciels\Internet Download Manager\IEGetAll.htm
O9 - Extra button: Statistiques de la protection du trafic Internet - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Apps\Security\Kespersky Labs\Kesperrsky Internet Security\SCIEPlgn.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\Apps\Office\MSOFFI~1\OFFICE11\REFIEBAR.DLL
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/FR-FR/a-UNO1/GAME_UNO1.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {F5A7706B-B9C0-4C89-A715-7A0C6B05DD48} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab56986.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{B762B2C3-09C1-4C01-8FBE-C7F21A2B5270}: NameServer = 192.168.1.1
O20 - AppInit_DLLs: C:\Apps\Security\KESPER~1\KESPER~1\mzvkbd.dll,C:\Apps\Security\KESPER~1\KESPER~1\mzvkbd3.dll,C:\Apps\Security\KESPER~1\KESPER~1\adialhk.dll,C:\Apps\Security\KESPER~1\KESPER~1\kloehk.dll
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - C:\WINDOWS\ATKKBService.exe
O23 - Service: Kaspersky Internet Security (AVP) - Kaspersky Lab - C:\Apps\Security\Kespersky Labs\Kesperrsky Internet Security\avp.exe
O23 - Service: Imapi Helper - Alex Feinman - F:\Mes Documents\Logiciels\ISO Recorder\ImapiHelper.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: StarWind AE Service (StarWindServiceAE) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe