Sites malveillants. résultat: navigateur lent

Bonjour,
depuis que j'ai visité des sites malveillants, mon navigateur (google chrome) est devenu, par séquence, hyper lent, voir il n'ouvre plus les pages souhaitées. J'ai essayé avec explorer, c'est la meme chose. J'ai testé avec Avast et malwarebytes et ils ne trouvent rien. Le reste de mon portable va super bien, sa semble avoir affecté que mon navigateur. Je suis un peu désespéré car mon portable est neuf. Alors voilà, votre aide serait grandement appréciée. Merci d'avance.

J'ai fait un scan avec Hijackthis. Voici le résultat:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:47:18, on 2009-07-12
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18248)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Camera Assistant Software for Gateway\traybar.exe
C:\Program Files (x86)\avast\ashDisp.exe
C:\Program Files (x86)\Winamp\winampa.exe
C:\Program Files (x86)\Labtec\Mouse\V3.0\moffice.exe
C:\Program Files (x86)\Java\jre6\bin\jusched.exe
C:\Program Files\Camera Assistant Software for Gateway\CEC_MAIN.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BluetoothHeadsetProxy.exe
C:\Program Files (x86)\Windows Live\Contacts\wlcomm.exe
C:\Program Files (x86)\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.gateway.com/rdr.aspx?b=ACGW&l=0c0c&s=2&o=vp64&d=0309&m=m-2610h
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.ca/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.gateway.com/rdr.aspx?b=ACGW&l=0c0c&s=2&o=vp64&d=0309&m=m-2610h
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
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 = http://homepage.gateway.com/rdr.aspx?b=ACGW&l=0c0c&s=2&o=vp64&d=0309&m=m-2610h
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll
O2 - BHO: Google Dictionary Compression sdch - {C84D72FE-E17D-4195-BB24-76C02E2E7C4E} - C:\Program Files (x86)\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar.dll
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [Trigger New Acer AlaunchX] c:\Acer\Preload\Command\AlaunchX\AppInRun.exe
O4 - HKLM\..\Run: [Camera Assistant Software] "C:\Program Files\Camera Assistant Software for Gateway\traybar.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~2\avast\ashDisp.exe
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files (x86)\Winamp\winampa.exe"
O4 - HKLM\..\Run: [FLMOFFICE4DMOUSE] "C:\Program Files (x86)\Labtec\Mouse\V3.0\moffice.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\RunOnce: [New Acer AlaunchX] c:\Acer\Preload\Command\AlaunchX\LaunchAlaunchX.exe
O4 - HKLM\..\RunOnce: [Malwarebytes' Anti-Malware] "C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamgui.exe" /install /silent
O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware (reboot)] "C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbam.exe" /runcleanupscript
O4 - HKCU\..\Run: [swg] C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [Google Update] "C:\Users\client\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files (x86)\Windows Media Player\WMPNSCFG.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O4 - Global Startup: BigFix.lnk = C:\Program Files\BigFix\bigfix.exe
O4 - Global Startup: BTTray.lnk = ?
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~2\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Envoyer au périphérique &Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O8 - Extra context menu item: Envoyer l'&image au périphérique Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: PokerStars - {3AD14F0C-ED16-4e43-B6D8-661B03F6A1EF} - C:\Program Files (x86)\PokerStars\PokerStarsUpdate.exe
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: Envoyer à Bluetooth - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: Envoyer au périphérique &Bluetooth... - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O13 - Gopher Prefix:
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O18 - Filter: x-sdch - {B1759355-3EEC-4C1E-B0F1-B719FE26E377} - C:\Program Files (x86)\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files (x86)\avast\aswUpdSv.exe
O23 - Service: Ati External Event Utility - Unknown owner - C:\Windows\system32\Ati2evxx.exe (file missing)
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files (x86)\avast\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files (x86)\avast\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files (x86)\avast\ashWebSv.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: @dfsrres.dll,-101 (DFSR) - Unknown owner - C:\Windows\system32\DFSR.exe (file missing)
O23 - Service: Empowering Technology Service (ETService) - Unknown owner - C:\Program Files\GATEWAY\Gateway Recovery Management\Service\ETService.exe
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files (x86)\Gateway Games\Gateway Game Console\GameConsoleService.exe
O23 - Service: Service Google Update (gupdate1c9e1371100be3b) (gupdate1c9e1371100be3b) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: nProtect GameGuard Service (npggsvc) - Unknown owner - C:\Windows\system32\GameMon.des.exe (file missing)
O23 - Service: O2Micro Flash Memory Card Service (o2flash) - O2Micro International - C:\Program Files (x86)\O2Micro Flash Memory Card Driver\o2flash.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\SLsvc.exe,-101 (slsvc) - Unknown owner - C:\Windows\system32\SLsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
O23 - Service: XAudioService - Unknown owner - C:\Windows\system32\DRIVERS\xaudio64.exe (file missing)