[XP] mon pc ram a fond!

hello,
j'ai de gros problemes avec mon pc qui ram beaucoup et qui se plante souvent :
caracteristiques : P4, windows XP, 512 de ram, DD 240go (80 + 160)
j'ai vu que un log hijack pourait vous etres util pour m'aider : le voila

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\OmniPageSE\opware32.exe
C:\WINDOWS\System32\LVCOMS.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\MMaestro\BWheel35.exe
C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
C:\PROGRA~1\ANTIVI~1\Avast4\ashDisp.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\antivirus Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\antivirus Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\PROGRA~1\Iomega\System32\AppServices.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\wanmpsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Iomega\AutoDisk\ADService.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\antivirus Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\antivirus Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\calc.exe
C:\DOCUME~1\NOL~1\LOCALS~1\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.mudhwbsmkgy.biz/GNy/DH7vfmqJ8Q5krokd2fHOE3jtp248DPHbe0nyhoCEmyNaOSwRdr...
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.zijcnqmjlozlukjogvokn.uk/GNy/DH7vfmrSg5xNl6pQAM5NQ5s3w4W71qMua5364N4.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.free.fr/freebox/index.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O3 - Toolbar: (no name) - {BA52B914-B692-46c4-B683-905236F6F655} - (no file)
O4 - HKLM\..\Run: [Omnipage] C:\Program Files\OmniPageSE\opware32.exe
O4 - HKLM\..\Run: [DXM6Patch_981116] C:\WINDOWS\p_981116.exe /Q:A
O4 - HKLM\..\Run: [LVComs] C:\WINDOWS\System32\LVCOMS.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [LWBMOUSE] C:\MMaestro\BWheel35.exe
O4 - HKLM\..\Run: [bags bold bait name] C:\Documents and Settings\All Users\Application Data\Grey Wipe Bags Bold\Ping Bolt.exe
O4 - HKLM\..\Run: [x34k35W] ncxntbbu.exe
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [ADUserMon] C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ANTIVI~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SSBkgdUpdate] C:\Program Files\Fichiers communs\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe -Embedding -boot
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Internet warn] C:\DOCUME~1\NOL~1\APPLIC~1\ANTESP~1\Download comp.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
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=https://www.free.fr/freebox/index.html
O16 - DPF: {3a4f9191-65a8-11d5-85c1-0001023952c1} (TE) - http://web.igo.fr//Installskyline/TEInstall/TE.cab
O16 - DPF: {45E83043-1F6F-4D22-A5E7-0138EA171B49} (FileSharingCtrl Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/FileSharing/fr/fileshar...
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobpptapster - Unknown owner - (no file)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\antivirus Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\antivirus Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\antivirus Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\antivirus Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Cadence License Manager - Macrovision Corporation - C:\OrCAD\license_manager\lmgrd.exe
O23 - Service: CADopia License Manager - Macrovision Corporation - C:\OrCAD\OrCAD_10.5\INTELL~1\LicenseManager\lmgrd.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Iomega App Services - Iomega Corporation - C:\PROGRA~1\Iomega\System32\AppServices.exe
O23 - Service: Flexlm (lmgrd) - Macrovision Corporation - C:\OrCAD\OrCAD_10.5\IntelliCAD 4\LicenseManager\lmgrd.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - %ProgramFiles%\WinPcap\rpcapd.exe" -d -f "%ProgramFiles%\WinPcap\rpcapd.ini (file missing)
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: WAN Miniport (ATW) Service (WANMiniportService) - America Online, Inc. - C:\WINDOWS\wanmpsvc.exe
O23 - Service: Iomega Active Disk (_IOMEGA_ACTIVE_DISK_SERVICE_) - Iomega Corporation - C:\Program Files\Iomega\AutoDisk\ADService.exe



est ce que quelqu'un d'assez competant dans le domaine pourrait me dire si il y a des probleme la dedans

merci bien d'avance!