PC Très lent, 62 processus au démarrage

Bonjour,

J'espère que vous pourrez m'aider. Mon ordinateur est très lent. Je ne peux pas écouter de la musique sans qu'elle saute par exemple.

J'ai fait un rapport avec hitjackthis:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 15:52:16, on 01/09/2015
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Adobe\Photoshop Elements 3.0\PhotoshopElementsFileAgent.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Apoint\Apoint.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Realtek\InstallShield\AzMixerSel.exe
C:\WINDOWS\system32\ICO.EXE
C:\Program Files\Sony\ISB Utility\ISBMgr.exe
C:\Program Files\Sony\Wireless Switch Setting Utility\Switcher.exe
C:\Program Files\Sony\VAIO Update 2\VAIOUpdt.exe
C:\Program Files\Canon\IJ Network Scanner Selector EX\CNMNSST.exe
C:\Program Files\Western Digital\WD Security\WDDriveAutoUnlock.exe
C:\Program Files\Apoint\Apntex.exe
C:\Program Files\Real\RealPlayer\update\realsched.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Samsung\Kies\KiesTrayAgent.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Samsung\Kies\Kies.exe
C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
C:\Program Files\Malwarebytes Anti-Malware\mbamscheduler.exe
C:\Program Files\Malwarebytes Anti-Malware\mbamservice.exe
C:\Program Files\Adobe\Photoshop Elements 3.0\PhotoshopElementsDeviceConnect.exe
C:\Program Files\RealNetworks\RealDownloader\rndlresolversvc.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Malwarebytes Anti-Malware\mbam.exe
C:\Program Files\Western Digital\WD Drive Manager\WDDriveService.exe
C:\Program Files\Western Digital\WD SmartWare\WDRulesEngine.exe
C:\Program Files\Western Digital\WD SmartWare\WDBackupEngine.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe
C:\WINDOWS\system32\taskmgr.exe
C:\WINDOWS\system32\msiexec.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://fr.yahoo.com?fr=hp-avast&type=avastbcl
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://fr.search.yahoo.com/yhs/search?type=avastbcl&hspart=avast&hsimp=yhs-001&p={searchTerms}
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.google.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = www.google.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com?fr=hp-avast&type=avastbcl
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.bing.com/search?q={searchTerms}
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.bing.com/search?q={searchTerms}
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Documents and Settings\All Users\Application Data\RealNetworks\RealDownloader\BrowserPlugins\IE\rndlbrowserrecordplugin.dll
O2 - BHO: Canon Easy-WebPrint EX BHO - {3785D0AD-BFFF-47F6-BF5B-A587C162FED9} - C:\Program Files\Canon\Easy-WebPrint EX\ewpexbho.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Canon Easy-WebPrint EX - {759D9886-0C6F-4498-BAB6-4A5F47C6C72F} - C:\Program Files\Canon\Easy-WebPrint EX\ewpexhlp.dll
O4 - HKLM\..\Run: [Hcontrol] C:\WINDOWS\ATK0100\Hcontrol.exe
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [AzMixerSel] C:\Program Files\Realtek\InstallShield\AzMixerSel.exe
O4 - HKLM\..\Run: [Mouse Suite 98 Daemon] ICO.EXE
O4 - HKLM\..\Run: [ISBMgr.exe] C:\Program Files\Sony\ISB Utility\ISBMgr.exe
O4 - HKLM\..\Run: [Switcher.exe] C:\Program Files\Sony\Wireless Switch Setting Utility\Switcher.exe
O4 - HKLM\..\Run: [VAIO Update 2] "C:\Program Files\Sony\VAIO Update 2\VAIOUpdt.exe" /Stationary
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [APSDaemon] "C:\Program Files\Fichiers communs\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [CanonQuickMenu] C:\Program Files\Canon\Quick Menu\CNQMMAIN.EXE /logon
O4 - HKLM\..\Run: [IJNetworkScannerSelectorEX] C:\Program Files\Canon\IJ Network Scanner Selector EX\CNMNSST.exe /FORCE
O4 - HKLM\..\Run: [WD Drive Unlocker] C:\Program Files\Western Digital\WD Security\WDDriveAutoUnlock.exe
O4 - HKLM\..\Run: [WD Quick View] C:\Program Files\Western Digital\WD Quick View\WDDMStatus.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Real\RealPlayer\update\realsched.exe" -osboot
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [KiesTrayAgent] C:\Program Files\Samsung\Kies\KiesTrayAgent.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [] C:\Program Files\Samsung\Kies\External\FirmwareUpdate\KiesPDLR.exe
O4 - HKCU\..\Run: [KiesPreload] C:\Program Files\Samsung\Kies\Kies.exe /preload
O4 - HKCU\..\Run: [KiesAirMessage] C:\Program Files\Samsung\Kies\KiesAirMessage.exe -startup
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 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &Google Search - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~4\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O14 - IERESET.INF: START_PAGE_URL=http://www.club-vaio.com/fr/
O22 - SharedTaskScheduler: Pré-chargeur Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Démon de cache des catégories de composant - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe Active File Monitor (AdobeActiveFileMonitor) - Unknown owner - C:\Program Files\Adobe\Photoshop Elements 3.0\PhotoshopElementsFileAgent.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - Unknown owner - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: Journal des événements (Eventlog) - Unknown owner - C:\WINDOWS\system32\services.exe
O23 - Service: EvtEng - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Service Google Update (gupdate) (gupdate) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Service Google Update (gupdatem) (gupdatem) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Canon Inkjet Printer/Scanner/Fax Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: Image Converter video recording monitor for VAIO Entertainment - Sony Corporation - C:\Program Files\Sony\Image Converter 2\IcVzMon.exe
O23 - Service: Service COM de gravage de CD IMAPI (ImapiService) - Unknown owner - C:\WINDOWS\system32\imapi.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: MBAMScheduler - Malwarebytes Corporation - C:\Program Files\Malwarebytes Anti-Malware\mbamscheduler.exe
O23 - Service: MBAMService - Malwarebytes Corporation - C:\Program Files\Malwarebytes Anti-Malware\mbamservice.exe
O23 - Service: Partage de Bureau à distance NetMeeting (mnmsrvc) - Unknown owner - C:\WINDOWS\system32\mnmsrvc.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: MSCSPTISRV - Sony Corporation - C:\Program Files\Fichiers communs\Sony Shared\AVLib\MSCSPTISRV.exe
O23 - Service: PACSPTISVR - Sony Corporation - C:\Program Files\Fichiers communs\Sony Shared\AVLib\PACSPTISVR.exe
O23 - Service: Photoshop Elements Device Connect (PhotoshopElementsDeviceConnect) - Unknown owner - C:\Program Files\Adobe\Photoshop Elements 3.0\PhotoshopElementsDeviceConnect.exe
O23 - Service: Plug-and-Play (PlugPlay) - Unknown owner - C:\WINDOWS\system32\services.exe
O23 - Service: Gestionnaire de session d'aide sur le Bureau à distance (RDSessMgr) - Unknown owner - C:\WINDOWS\system32\sessmgr.exe
O23 - Service: RealNetworks Downloader Resolver Service - Unknown owner - C:\Program Files\RealNetworks\RealDownloader\rndlresolversvc.exe
O23 - Service: RegSrvc - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Carte à puce (SCardSvr) - Unknown owner - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\Program Files\Fichiers communs\Sony Shared\AVLib\SPTISRV.exe
O23 - Service: Journaux et alertes de performance (SysmonLog) - Unknown owner - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: VAIO Cooporated Initialisation (VCI) - Sony Corporation - C:\Program Files\Sony\VAIO Cooperated Initialisation\VCI_SVC.exe
O23 - Service: Cliché instantané de volume (VSS) - Unknown owner - C:\WINDOWS\System32\vssvc.exe
O23 - Service: WD Backup (WDBackup) - Western Digital - C:\Program Files\Western Digital\WD SmartWare\WDBackupEngine.exe
O23 - Service: WD Drive Manager (WDDriveService) - Western Digital - C:\Program Files\Western Digital\WD Drive Manager\WDDriveService.exe
O23 - Service: WD Rules (WDRulesService) - Western Digital - C:\Program Files\Western Digital\WD SmartWare\WDRulesEngine.exe
O23 - Service: Carte de performance WMI (WmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\wmiapsrv.exe
O23 - Service: Service Partage réseau du Lecteur Windows Media (WMPNetworkSvc) - Unknown owner - C:\Program Files\Windows Media Player\WMPNetwk.exe