Demarrage pc trés lent

Bonjour,à tous .
J'ai un probleme de demarrage de windows qui est devenu tres lent depuis 1semaine ,et j'ai remarqué ça apres avoir installé une nouvelle carte graphique Nvidia 1go.

win xp sp2 ,1go de ram.antivirus kaspersky 7.0.
Voici mon rapport hijack,si quelqu'un peut eclairer malanterne ,j'en serais vraiment heureux.
merci d'avance.
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Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:42:49, on 29/11/2008
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\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\ezSP_Px.exe
C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\WINDOWS\system32\RUNDLL32.EXE
D:\Program Files\Internet Download Manager\IDMan.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\PnkBstrA.exe
C:\WINDOWS\system32\PnkBstrB.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\UAService7.exe
c:\program files\fichiers communs\installshield\updateservice\isuspm.exe
D:\Program Files\Internet Download Manager\IEMonitor.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\agent.exe
D:\Program Files\Your Uninstaller 2008\uruninstaller.exe
D:\Program Files\Safari\Safari.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?redirfallthru=http%3a%2f%2fwww.msn.fr%2fimg%2ffr%2ffr-fr%2fdivertissement%2fcelebrites%2fgalery%2fwentworth02.jpg%3f
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\Yahoo!\Companion\Installs\cpn0\yt.dll
R3 - URLSearchHook: (no name) - {06663B56-0D73-4f9f-BCC5-4AA941470AFD} - C:\Program Files\PandoBar\SrchAstt\1.bin\P4SRCHAS.DLL
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - D:\Program Files\Internet Download Manager\IDMIECC.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\PROGRA~1\Yahoo!\Companion\Installs\cpn0\yt.dll
O2 - BHO: Pando Search Assistant BHO - {06663B51-0D73-4f9f-BCC5-4AA941470AFD} - C:\Program Files\PandoBar\SrchAstt\1.bin\P4SRCHAS.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: CInterceptor Object - {38D3FE60-3D53-4F37-BB0E-C7A97A26A156} - C:\Program Files\Pando Networks\Pando\PandoIEPlugin.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Pando Toolbar BHO - {E3EA4FD1-CADE-4ae5-84F7-086EEE888BE4} - C:\Program Files\PandoBar\bar\1.bin\PANDOBAR.DLL
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\Yahoo!\Companion\Installs\cpn0\yt.dll
O3 - Toolbar: Pando Toolbar - {E3EA4FD9-CADE-4ae5-84F7-086EEE888BE4} - C:\Program Files\PandoBar\bar\1.bin\PANDOBAR.DLL
O3 - Toolbar: (no name) - {90B8B761-DF2B-48AC-BBE0-BCC03A819B3B} - (no file)
O4 - HKLM\..\Run: [ezShieldProtector for Px] C:\WINDOWS\system32\ezSP_Px.exe
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [DNS7reminder] "E:\Program Files\Nuance\NaturallySpeaking9\Ereg\Ereg.exe" -r "C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking9\Ereg.ini
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [IDMan] D:\Program Files\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')
O8 - Extra context menu item: Ajouter à Kaspersky Anti-Bannière - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\ie_banner_deny.htm
O8 - Extra context menu item: Download all links with IDM - D:\Program Files\Internet Download Manager\IEGetAll.htm
O8 - Extra context menu item: Download FLV video content with IDM - D:\Program Files\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Download with IDM - D:\Program Files\Internet Download Manager\IEExt.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Statistiques d’Anti-Virus Internet - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\SCIEPlgn.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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: Correcteur - {F7C8E5F6-B6D1-45db-8D91-2BCFA5DF11A9} - C:\Program Files\Druide\Antidote\Internet Explorer\6\Antidote K - IE 6.htm (HKCU)
O9 - Extra button: Dictionnaires - {F9B969E8-58D0-4dd9-AC8A-EE2336FF8F65} - C:\Program Files\Druide\Antidote\Internet Explorer\6\Antidote D - IE 6.htm (HKCU)
O9 - Extra button: Guides - {FA089E36-3F1B-4c51-9A1A-C4E7012483AF} - C:\Program Files\Druide\Antidote\Internet Explorer\6\Antidote G - IE 6.htm (HKCU)
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{19784130-635A-4A4D-88AB-EED5824D9BF5}: NameServer = 41.221.20.4 208.67.222.222
O17 - HKLM\System\CCS\Services\Tcpip\..\{E65FE300-A717-4F55-AA0C-4108E67584C0}: NameServer = 192.168.1.1
O17 - HKLM\System\CS1\Services\Tcpip\..\{19784130-635A-4A4D-88AB-EED5824D9BF5}: NameServer = 41.221.20.4 208.67.222.222
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~1.0\adialhk.dll
O23 - Service: Service de licence ABBYY FineReader 9.0 (ABBYY.Licensing.FineReader.Professional.9.0) - ABBYY (BIT Software) - C:\Program Files\ABBYY FineReader 9.0\NetworkLicenseServer.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Kaspersky Internet Security 7.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Service de l’iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: PnkBstrB - Unknown owner - C:\WINDOWS\system32\PnkBstrB.exe
O23 - Service: SecuROM User Access Service (V7) (UserAccess7) - Sony DADC Austria AG. - C:\WINDOWS\system32\UAService7.exe