Bonjour,

mon PC est devenu très lent suite au changement de ma carte graphique (remplacement d'une 8600GTS par une HD4870) et à une réorganisation de mon boîtier (carton son...). Depuis j'ai un coeur de mon processeur qui tourne à fond, même au repos alors que l'autre ne fait rien. Aucuns processus n'apparait dans le gestionnaire de tâches donc je ne sais pas ce qui me bouffe ces ressources.

Voici mon scan Hijackthis, merci de votre aide:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 10:13:28, on 16/11/2009
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\spoolsv.exe
C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\ESET\ESET Smart Security\ekrn.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\rserver30\RServer3.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\TomTom HOME 2\TomTomHOMEService.exe
C:\Program Files\Fichiers communs\VMware\VMware Virtual Image Editing\vmount2.exe
C:\WINDOWS\system32\vmnat.exe
C:\Program Files\DynDNS Updater\DynUpSvc.exe
C:\Program Files\VMware\VMware Workstation\vmware-authd.exe
C:\WINDOWS\system32\vmnetdhcp.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\rserver30\FamItrfc.Exe
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\Program Files\VMware\VMware Workstation\vmware-tray.exe
C:\Program Files\VMware\VMware Workstation\hqtray.exe
C:\Program Files\Acronis\TrueImageEchoEnterpriseServer\TrueImageMonitor­.exe
C:\Program Files\Acronis\TrueImageEchoEnterpriseServer\TimounterMonitor­.exe
C:\Program Files\Fichiers communs\Acronis\Schedule2\schedhlp.exe
C:\Program Files\ESET\ESET Smart Security\egui.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\WINDOWS\CTHELPER.EXE
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\SuperCopier2\SuperCopier2.exe
C:\Program Files\TomTom HOME 2\TomTomHOMERunner.exe
C:\Program Files\ATnotes\ATnotes.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\ccc.exe
C:\WINDOWS\system32\taskmgr.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.google.fr/ie
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.google.fr
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,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
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 = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.google.fr/ie
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://www.google.fr/search?q=%s
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [High Definition Audio Property Page Shortcut] HDAShCut.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [SoundMAX] "C:\Program Files\Analog Devices\SoundMAX\Smax4.exe" /tray
O4 - HKLM\..\Run: [vmware-tray] C:\Program Files\VMware\VMware Workstation\vmware-tray.exe
O4 - HKLM\..\Run: [VMware hqtray] "C:\Program Files\VMware\VMware Workstation\hqtray.exe"
O4 - HKLM\..\Run: [TrueImageMonitor.exe] C:\Program Files\Acronis\TrueImageEchoEnterpriseServer\TrueImageMonitor.exe
O4 - HKLM\..\Run: [AcronisTimounterMonitor] C:\Program Files\Acronis\TrueImageEchoEnterpriseServer\TimounterMonitor.exe
O4 - HKLM\..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Fichiers communs\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM\..\Run: [egui] "C:\Program Files\ESET\ESET Smart Security\egui.exe" /hide /waitservice
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Fichiers communs\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [SuperCopier2.exe] C:\Program Files\SuperCopier2\SuperCopier2.exe
O4 - HKCU\..\Run: [TomTomHOME.exe] "C:\Program Files\TomTom HOME 2\TomTomHOMERunner.exe"
O4 - HKCU\..\Run: [ATnotes.exe] C:\Program Files\ATnotes\ATnotes.exe
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_01] rundll32 advpack.dll,DelNodeRunDLL32 "C:\WINDOWS\Srchasst" (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_02] rundll32 advpack.dll,DelNodeRunDLL32 "C:\WINDOWS\msagent" (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_03] rundll32 advpack.dll,DelNodeRunDLL32 "C:\WINDOWS\Help\Tours" (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_04] cmd.exe /c md "%USERPROFILE%\Local Settings\Temp" (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_06] rundll32 advpack.dll,LaunchINFSection nlite.inf,nLiteReg (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_07] rundll32 advpack.dll,LaunchINFSection nlite.inf,S (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\RunOnce: [nlpo_01] rundll32 advpack.dll,DelNodeRunDLL32 "C:\WINDOWS\Srchasst" (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-21-1123561945-1604221776-725345543-1009\..\RunOnce: [nlpo_01] rundll32 advpack.dll,DelNodeRunDLL32 "C:\WINDOWS\Srchasst" (User '?')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\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: @C:\Program Files\Messenger\Msgslang.dll,-61144 - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: @C:\Program Files\Messenger\Msgslang.dll,-61144 - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{5BDEB1F8-4000-4B6D-97AF-CE33776948F6}: NameServer = 216.146.35.35,216.146.36.36
O17 - HKLM\System\CCS\Services\Tcpip\..\{8C8798E4-C3AE-4C47-B248-9E4039297C8E}: NameServer = 216.146.35.35,216.146.36.36
O17 - HKLM\System\CCS\Services\Tcpip\..\{D262108C-A0DA-459B-BB77-169C60487E87}: NameServer = 216.146.35.35,216.146.36.36
O17 - HKLM\System\CCS\Services\Tcpip\..\{FFE47C42-957E-424C-9319-91978863EB6E}: NameServer = 216.146.35.35,216.146.36.36
O20 - AppInit_DLLs: C:\WINDOWS\system32\rserver30\newtstop.dll
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.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: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: DynDNS Updater - Dynamic Network Services, Inc. - C:\Program Files\DynDNS Updater\DynUpSvc.exe
O23 - Service: Eset HTTP Server (EhttpSrv) - ESET - C:\Program Files\ESET\ESET Smart Security\EHttpSrv.exe
O23 - Service: Eset Service (ekrn) - ESET - C:\Program Files\ESET\ESET Smart Security\ekrn.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: HP Port Resolver - Hewlett-Packard Company - C:\WINDOWS\system32\spool\drivers\w32x86\3\HPBPRO.EXE
O23 - Service: HP Status Server - Hewlett-Packard Company - C:\WINDOWS\system32\spool\drivers\w32x86\3\HPBOID.EXE
O23 - Service: Imapi Helper - Alex Feinman - C:\Program Files\ISO Recorder\ImapiHelper.exe
O23 - Service: Service de l’iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Program Files\Fichiers communs\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Radmin Server V3 (RServer3) - Famatech International Corp. - C:\WINDOWS\system32\rserver30\RServer3.exe
O23 - Service: TomTomHOMEService - TomTom - C:\Program Files\TomTom HOME 2\TomTomHOMEService.exe
O23 - Service: VMware Agent Service (ufad-ws60) - VMware, Inc. - C:\Program Files\VMware\VMware Workstation\vmware-ufad.exe
O23 - Service: VMware Authorization Service (VMAuthdService) - VMware, Inc. - C:\Program Files\VMware\VMware Workstation\vmware-authd.exe
O23 - Service: VMware DHCP Service (VMnetDHCP) - VMware, Inc. - C:\WINDOWS\system32\vmnetdhcp.exe
O23 - Service: VMware Virtual Mount Manager Extended (vmount2) - VMware, Inc. - C:\Program Files\Fichiers communs\VMware\VMware Virtual Image Editing\vmount2.exe
O23 - Service: VMware NAT Service - VMware, Inc. - C:\WINDOWS\system32\vmnat.exe
End of file - 11219 bytes

Configuration: Windows XP
Firefox 3.5.5