LENT portable depuis 3 jours

Bonjour à tous,
depuis quelques jours, TOUTES mes actions sur mon portable sont ralenties; ouverture de dossiers, internet (firefox autant que explorer), jeux, etc. J'avais un certain problème de lenteur depuis le mois de mars, mais ce n'était que lorsque j'ouvrais l'explorateur Window (mon dossier par exemple) et ça ne le faisait qu'une fois dans la journée.
Maintenant, à toutes les fois que j'ouvre un dossier, une clé USB, le poste de travail... j'en ai pour 10-15 secondes et des fois plus.
Un autre problème nouveau est la lenteur de Firefox qui fige et affiche "Ne répond pas". J'ai maintenant de la difficulté à ouvrir plus de deux onglets.
Finalement, en faisant des scans avec "SpeedUpMyPC", le programme trouve environ 30 fichiers caches après que j'ai seulement ouvert ma page d'accueil sur firefox (et c'est la page de mon Université). Donc, après 30 minutes sur internet, je peux accumuler 100-300 fichiers caches et autres temp files. Je trouve ça un peu étrange. Le programme trouve également toujours un "problème" avec le fichier places.sqlite de firefox. J'ai donc désinstallé et réinstallé Firefox (après des heures de niaisage) et ça n'a rien changé.

J'aurais donc besoin d'aide pour trouver le bobo, car j'ai joué avec tout ce que je connais, cherché sur le net pendant 2 jours et je ne trouve rien


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 10:01:32, on 2009-06-10
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal
<code>
Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\Explorer.EXE
C:\Program Files\Synaptics\SynTP\SynTPStart.exe
C:\Program Files\HP\QuickPlay\QPService.exe
C:\Program Files\Hewlett-Packard\HP Quick Launch Buttons\QLBCTRL.exe
C:\Program Files\Hewlett-Packard\HP QuickTouch\HPKBDAPP.exe
C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
C:\Program Files\Hewlett-Packard\HP Wireless Assistant\WiFiMsg.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\HpqSRmon.exe
C:\Program Files\Alwil Software\Avast4\ashDisp.exe
C:\Program Files\ScanSoft\OmniPageSE4\OpWareSE4.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Windows\ehome\ehtray.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Hewlett-Packard\Shared\HpqToaster.exe
C:\PROGRA~1\MICROS~3\Office12\WINWORD.EXE
C:\Program Files\Microsoft\Office Live\OfficeLiveSignIn.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Windows Live\Contacts\wlcomm.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

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.usherbrooke.ca/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://hp-consumer.my.aol.qc.ca/?icid=notebook
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 = http://hp-consumer.my.aol.qc.ca/?icid=notebook
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
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: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - (no file)
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: NCO 2.0 IE BHO - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - (no file)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - (no file)
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [SynTPStart] C:\Program Files\Synaptics\SynTP\SynTPStart.exe
O4 - HKLM\..\Run: [QPService] "C:\Program Files\HP\QuickPlay\QPService.exe"
O4 - HKLM\..\Run: [QlbCtrl] %ProgramFiles%\Hewlett-Packard\HP Quick Launch Buttons\QlbCtrl.exe /Start
O4 - HKLM\..\Run: [OnScreenDisplay] C:\Program Files\Hewlett-Packard\HP QuickTouch\HPKBDAPP.exe
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [WAWifiMessage] C:\Program Files\Hewlett-Packard\HP Wireless Assistant\WiFiMsg.exe
O4 - HKLM\..\Run: [hpqSRMon] C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpqSRMon.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [OpwareSE4] "C:\Program Files\ScanSoft\OmniPageSE4\OpwareSE4.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.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')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O13 - Gopher Prefix:
O16 - DPF: {049A470D-F818-4E34-B14D-E4E237DADCF8} (CPlayFirstFashionDasControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-fashion-dash/fashiondashweb.1.0.0.21.cab
O16 - DPF: {055B4212-4C81-448E-AFA9-C3CA4AAE8F95} (CPlayFirstDairyDashWControl Object) - http://www.shockwave.com/content/dairydash/sis/DairyDashWeb.1.0.0.12.cab
O16 - DPF: {195B4BBF-E1E4-4020-9773-0A8C6F65EA35} (CPlayFirstCookingDasControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-cooking-dash/CookingDashWeb.1.0.0.9.cab
O16 - DPF: {2108E348-A0C0-1563-D327-730450CF5E34} (CPlayFirstDDComcastControl Object) - http://www.shockwave.com/content/dinerdash/sis/DDComcast.1.0.0.39.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w2/resources/VistaMSNPUpldfr-ca.cab
O16 - DPF: {6715D12F-213F-4C6E-ACE1-8A363F550B96} (CPlayFirstDoggieDashControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-doggie-dash/DoggieDash.1.0.0.6.cab
O16 - DPF: {74E4A24D-5224-4F05-8A41-99445E0FC22B} (GameHouse Games Player) - http://aolsvc.aol.com/onlinegames/free-trial-big-island-blends/gamehouseplayer.cab
O16 - DPF: {74EF5274-F439-2168-B543-14745B625C72} (CPlayFirstWeddingDasControl Object) - http://www.shockwave.com/content/weddingdash2/sis/WeddingDash2Web.1.0.0.13.cab
O16 - DPF: {7D492D61-303A-45C3-8A55-63449339943D} (CPlayFirstNightShiftControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-the-nightshift-code/NightShiftCodeWeb.1.0.0.5.cab
O16 - DPF: {7E980B9B-8AE5-466A-B6D6-DA8CF814E78A} (MJLauncherCtrl Class) - http://www.shockwave.com/content/chainz2/sis/mjolauncher.cab
O16 - DPF: {B516CA4E-A5BA-405C-AFCF-A97F08CC7429} (GoBit Games Player) - http://www.shockwave.com/content/burgershop/sis/EggoKitchen/GoBitGamesPlayer_v5.cab
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://aolsvc.aol.com/onlinegames/free-trial-delicious-2-deluxe/zylomplayer.cab
O16 - DPF: {C0C0CB9B-BFEB-47C2-90FA-BE9692875ADB} (CPlayFirstPetShopHopControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-pet-shop-hop/petshophopweb.1.0.0.16.cab
O16 - DPF: {D40F5876-A494-4124-8161-82625BB28C06} (CPlayFirstChocolatieControl Object) - http://aolsvc.aol.com/onlinegames/free-trial-chocolatier-2-secret-ingredients/Chocolatier2Web.1.0.0.14.cab
O16 - DPF: {E41BA393-9078-424E-9554-9DB5126F5F4C} (CPlayFirstDreamChronControl Object) - http://www.shockwave.com/content/dreamchronicles2/sis/dream2web.1.0.0.13.cab
O16 - DPF: {EA6246B4-F380-443F-8727-9AEA3371146C} (CPlayFirstWeddingDashControl Object) - http://www.shockwave.com/content/weddingdash/sis/WeddingDash.1.0.0.47.cab
O20 - Winlogon Notify: mdc - C:\Windows\SYSTEM32\notification.dll
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Com4Qlb - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\HP Quick Launch Buttons\Com4Qlb.exe
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files\HP Games\My HP Game Console\GameConsoleService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: HP Health Check Service - Hewlett-Packard - c:\Program Files\Hewlett-Packard\HP Health Check\hphc_service.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: PIXMA Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: Service de l’iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: QuickPlay Background Capture Service (QBCS) (QPCapSvc) - Unknown owner - C:\Program Files\HP\QuickPlay\Kernel\TV\QPCapSvc.exe
O23 - Service: QuickPlay Task Scheduler (QTS) (QPSched) - Unknown owner - C:\Program Files\HP\QuickPlay\Kernel\TV\QPSched.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files\Spybot - Search & Destroy\SDWinSec.exe
O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe