Ordinateur lent, et bug rapidement

Bonjour, merci beaucoup d'abord de votre aide.
En faite, j'ai un énorme problème avec un de mes ordinateurs.
J'avais Norton comme antivirus et il expirait dans quelques jours et j'ai donc installé Bit Defender Internet Security.
Puis apres avoir l'installé j'ai supprimé Norton. Et le lendemain, mon ordinateur était devenu bizarre: il devenait lent à chaque fois que j'étais un peu trop rapide ou j'allais sur certains site.
J'ai donc fait un hijackthis il y avait des 010 lfp donc les ai retirés avec lfp-fix. Mais ce problème n'est pas résolu...
De l'aide s'il vous plait. Voici le log hijack this

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:05:47, on 2008/01/16
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16575)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Apoint\Apoint.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Sony\ISB Utility\ISBMgr.exe
C:\Program Files\Sony\VAIO Update 3\VAIOUpdt.exe
C:\Program Files\Sony\Wireless Switch Setting Utility\Switcher.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\BitDefender\BitDefender 2008\bdagent.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BTTray.exe
C:\Program Files\Sony\FeliCa Sensing\FeliSen.exe
C:\Program Files\Sony\SonicStage Mastering Studio\Audio Filter\SSMSFilter.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\Apoint\ApMsgFwd.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BtStackServer.exe
C:\Program Files\Apoint\Apntex.exe
C:\Windows\system32\conime.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Windows\system32\DllHost.exe

O1 - Hosts: ::1 localhost
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: ‚©‚ñ‚½‚ñ“o˜^2 - {0DD41AE7-6196-42E7-BDE5-4F393997449E} - C:\PROGRA~1\JUSTSY~1\SIMPLE~1\AtInBnd.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: ‚©‚ñ‚½‚ñ“o˜^2 ƒc[ƒ‹ƒo[ - {833CFE4E-05BD-43A3-97A7-A4E80D742F0F} - C:\PROGRA~1\JUSTSY~1\SIMPLE~1\AtInBnd.dll
O3 - Toolbar: BitDefender Toolbar - {381FFDE8-2394-4f90-B10D-FC6124A40F8C} - C:\Program Files\BitDefender\BitDefender 2008\IEToolbar.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe
O4 - HKLM\..\Run: [ISBMgr.exe] "C:\Program Files\Sony\ISB Utility\ISBMgr.exe"
O4 - HKLM\..\Run: [E-Flyer] "C:\Program Files\Sony\E-Flyer\SubFlyer.exe"
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [IME JPN 2007 Migration] C:\PROGRA~1\COMMON~1\MICROS~1\IME12\IMEJP\IMJPKLMG.EXE /Preload
O4 - HKLM\..\Run: [BitDefender Antiphishing Helper] "C:\Program Files\BitDefender\BitDefender 2008\IEShow.exe"
O4 - HKLM\..\Run: [BDAgent] "C:\Program Files\BitDefender\BitDefender 2008\bdagent.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Æǵµ¶óTV¹Ì´Ï] C:\Program Files\PandoraTVMini\MiniUpdate.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE')
O4 - Startup: ‚©‚´‚»‚¤FeliCa.lnk = C:\Program Files\Sony\FeliCa Sensing\FeliSen.exe
O4 - Startup: ƒI[ƒfƒBƒIƒtƒBƒ‹ƒ^‹@”\.lnk = C:\Program Files\Sony\SonicStage Mastering Studio\Audio Filter\SSMSFilter.exe
O4 - Global Startup: BTTray.lnk = ?
O8 - Extra context menu item: Microsoft Excel ‚ɃGƒNƒXƒ|[ƒg(&X) - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: ƒCƒ[ƒW‚ð Bluetooth ƒfƒoƒCƒX‚É‘—M(&B)... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O8 - Extra context menu item: ƒy[ƒW‚ð Bluetooth ƒfƒoƒCƒX‚É‘—M(&B)... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O13 - Gopher Prefix:
O15 - ESC Trusted Zone: http://*.update.microsoft.com
O16 - DPF: {B8C4B31D-6DCE-4DF0-BF73-44686849F67D} (PDRInst1 Class) - http://imgcdn.pandora.tv/pan_img/p3player/package/pdrinst.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Smart Network Service (BeService) - Sony Corporation - C:\Program Files\Sony\Smart Network\BeService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Image Converter SCSI Service (ICScsiSV) - Sony Corporation - C:\Program Files\Sony\Image Converter 3\ICScsiSV.exe
O23 - Service: IcVzMonLauncher - Sony Corporation - C:\Program Files\Sony\Image Converter 3\IcVzMonLauncher.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Image Converter video recording monitor for VAIO Entertainment - Sony Corporation - C:\Program Files\Sony\Image Converter 3\IcVzMon.exe
O23 - Service: IviRegMgr - InterVideo - C:\Program Files\Common Files\InterVideo\RegMgr\iviRegMgr.exe
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - BitDefender S.R.L. - C:\Program Files\Common Files\BitDefender\BitDefender Update Service\livesrv.exe
O23 - Service: MSCSPTISRV - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\MSCSPTISRV.exe
O23 - Service: PACSPTISVR - Unknown owner - C:\Program Files\Common Files\Sony Shared\AVLib\PACSPTISVR.exe
O23 - Service: SonicStage Back-End Service - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\SsBeSvc.exe
O23 - Service: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\SPTISRV.exe
O23 - Service: SonicStage SCSI Service (SSScsiSV) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\SSScsiSV.exe
O23 - Service: SigmaTel Audio Service (STacSV) - SigmaTel, Inc. - C:\Windows\system32\stacsv.exe
O23 - Service: TXVDrv Service (TxVDrvSvc) - Texim Corporation. - C:\Program Files\JustSystems\PersonalShelter\TxVDrvSvc.exe
O23 - Service: VAIO Entertainment TV Device Arbitration Service - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Entertainment Platform\VzCs\VzHardwareResourceManager\VzHardwareResourceManager.exe
O23 - Service: VAIO Event Service - Sony Corporation - C:\Program Files\Sony\VAIO Event Service\VESMgr.exe
O23 - Service: VAIO Media Integrated Server (VAIOMediaPlatform-IntegratedServer-AppServer) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\VMISrv.exe
O23 - Service: VAIO Media Integrated Server (HTTP) (VAIOMediaPlatform-IntegratedServer-HTTP) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\Platform\SV_Httpd.exe
O23 - Service: VAIO Media Integrated Server (UPnP) (VAIOMediaPlatform-IntegratedServer-UPnP) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\Platform\UPnPFramework.exe
O23 - Service: VAIO Media Gateway Server (VAIOMediaPlatform-Mobile-Gateway) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\Platform\VmGateway.exe
O23 - Service: VAIO Media Content Collection (VAIOMediaPlatform-UCLS-AppServer) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\UCLS.exe
O23 - Service: VAIO Media Content Collection (HTTP) (VAIOMediaPlatform-UCLS-HTTP) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\Platform\SV_Httpd.exe
O23 - Service: VAIO Media Content Collection (UPnP) (VAIOMediaPlatform-UCLS-UPnP) - Sony Corporation - C:\Program Files\Sony\VAIO Media Integrated Server\Platform\UPnPFramework.exe
O23 - Service: VAIO Content Metadata Intelligent Analyzing Manager (VcmIAlzMgr) - Sony Corporation - C:\Program Files\Sony\VCM Intelligent Analyzing Manager\VcmIAlzMgr.exe
O23 - Service: VAIO Content Metadata XML Interface (VcmXmlIfHelper) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VcmXml\VcmXmlIfHelper.exe
O23 - Service: VAIO Entertainment UPnP Client Adapter (Vcsw) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Entertainment Platform\VCSW\VCSW.exe
O23 - Service: BitDefender Virus Shield (VSSERV) - BitDefender S.R.L. - C:\Program Files\BitDefender\BitDefender 2008\vsserv.exe
O23 - Service: VAIO Entertainment Database Service (VzCdbSvc) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Entertainment Platform\VzCdb\VzCdbSvc.exe
O23 - Service: VAIO Entertainment File Import Service (VzFw) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Entertainment Platform\VzCdb\VzFw.exe
O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe
O23 - Service: BitDefender Communicator (XCOMM) - BitDefender - C:\Program Files\Common Files\BitDefender\BitDefender Communicator\xcommsvr.exe