Mon pc bloque

Bonjour Mon pc bloque sans cesse surtout quand je ne l'utilise pas pendant un certain temps, ou quand il ce met en veille. Je vient de télécharger Hijackthis et j'ai poster le rapport ci-dessous. Ma question et est-ce que quel qu'un pourrait m'interpréter ce rapport merci pour vos réponses. Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 03:12:43, on 05/08/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)

FIREFOX: 22.0 (fr)
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
E:\Program Files\AVAST Software\Avast\AvastSvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\LSI SoftModem\agrsmsvc.exe
C:\WINDOWS\system32\CTSvcCDA.exe
C:\Program Files\Java\jre7\bin\jqs.exe
E:\Program Files\Malwarebytes' Anti-Malware\mbamscheduler.exe
E:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\RealNetworks\RealDownloader\rndlresolversvc.exe
C:\Program Files\SoftwareUpdater\UpdaterService.exe
E:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\VIAudioi\SBADeck\ADeck.exe
C:\Program Files\ATI Technologies\ATI HYDRAVISION\HydraDM.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Program Files\Unlocker\UnlockerAssistant.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\program files\real\realplayer\update\realsched.exe
C:\Program Files\Fichiers communs\Java\Java Update\jusched.exe
E:\Program Files\AVAST Software\Avast\avastUI.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Windows Desktop Search\WindowsSearch.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\Boun$\Mes documents\Downloads\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.fr/0SEFRFR/SAOS02
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: RealNetworks 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: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
O2 - BHO: avast! Online Security - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - E:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
O3 - Toolbar: avast! Online Security - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - E:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O4 - HKLM\..\Run: [AudioDeck] C:\Program Files\VIAudioi\SBADeck\ADeck.exe 1
O4 - HKLM\..\Run: [HydraVisionDesktopManager] C:\Program Files\ATI Technologies\ATI HYDRAVISION\HydraDM.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [UnlockerAssistant] "C:\Program Files\Unlocker\UnlockerAssistant.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Fichiers communs\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\program files\real\realplayer\update\realsched.exe" -osboot
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Fichiers communs\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [avast] "E:\Program Files\AVAST Software\Avast\avastUI.exe" /nogui
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /minimized /regrun
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: OfferBox.lnk = C:\Program Files\OfferBox\OfferBox.exe
O4 - Global Startup: Windows Search.lnk = C:\Program Files\Windows Desktop Search\WindowsSearch.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\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
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1340247175593
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1340247113046
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
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 Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - LSI Corporation - C:\Program Files\LSI SoftModem\agrsmsvc.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - AVAST Software - E:\Program Files\AVAST Software\Avast\AvastSvc.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTSvcCDA.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: 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: Service COM de gravage de CD IMAPI (ImapiService) - Unknown owner - C:\WINDOWS\system32\imapi.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Oracle Corporation - C:\Program Files\Java\jre7\bin\jqs.exe
O23 - Service: MBAMScheduler - Malwarebytes Corporation - E:\Program Files\Malwarebytes' Anti-Malware\mbamscheduler.exe
O23 - Service: MBAMService - Malwarebytes Corporation - E:\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: 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: Carte à puce (SCardSvr) - Unknown owner - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files\Skype\Updater\Updater.exe
O23 - Service: Software Updater (SrvUpdater) - Unknown owner - C:\Program Files\SoftwareUpdater\UpdaterService.exe
O23 - Service: Journaux et alertes de performance (SysmonLog) - Unknown owner - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: Cliché instantané de volume (VSS) - Unknown owner - C:\WINDOWS\System32\vssvc.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