PC lent à l'utilisation

Bonjour,

Depuis quelques temps mon PC tourne au ralenti et je n'arrive pas à trouver la solution.
Le processus tourne à 100 % alors que je ne fait vraiment pas grand chose dessus.

Lorsque je regarde ce qui tourne, je ne vois rien de suspect.

Voici la log du hikack de ce jour.

ogfile of Trend Micro HijackThis v2.0.2
Scan saved at 22:04:53, on 14/09/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.20583)
Boot mode: Normal

Running processes:
G:\WINDOWS\System32\smss.exe
G:\WINDOWS\system32\winlogon.exe
G:\WINDOWS\system32\services.exe
G:\WINDOWS\system32\lsass.exe
G:\WINDOWS\system32\svchost.exe
G:\WINDOWS\System32\svchost.exe
G:\WINDOWS\system32\spoolsv.exe
g:\program files\fichiers communs\logishrd\lvmvfm\LVPrcSrv.exe
G:\WINDOWS\Explorer.EXE
G:\WINDOWS\system32\hkcmd.exe
G:\WINDOWS\system32\igfxpers.exe
G:\WINDOWS\RTHDCPL.EXE
G:\Program Files\Unlocker\UnlockerAssistant.exe
G:\PROGRA~1\AVG\AVG8\avgtray.exe
G:\WINDOWS\system32\ctfmon.exe
G:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
G:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
G:\Program Files\Bonjour\mDNSResponder.exe
G:\Program Files\Sunbelt Software\Personal Firewall\kpf4ss.exe
G:\WINDOWS\System32\spool\DRIVERS\W32X86\3\lxdvserv.exe
G:\Program Files\Sunbelt Software\Personal Firewall\kpf4gui.exe
G:\WINDOWS\system32\svchost.exe
G:\PROGRA~1\AVG\AVG8\avgrsx.exe
G:\Program Files\iPod\bin\iPodService.exe
G:\Program Files\Sunbelt Software\Personal Firewall\kpf4gui.exe
G:\WINDOWS\System32\svchost.exe
G:\Program Files\Mozilla Firefox\firefox.exe
G:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
G:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
G:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
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 = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://login.live.com/ppsecure/sha1auth.srf?lc=1036
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - G:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - G:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - G:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} - G:\PROGRA~1\FlashFXP\IEFlash.dll
O4 - HKLM\..\Run: [IgfxTray] G:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] G:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] G:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "G:\Program Files\Fichiers communs\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [lxdvmon.exe] "G:\Program Files\Lexmark X5400 Series\lxdvmon.exe"
O4 - HKLM\..\Run: [lxdvamon] "G:\Program Files\Lexmark X5400 Series\lxdvamon.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] G:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [MSConfig] G:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "G:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKCU\..\Run: [CTFMON.EXE] G:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\Wcescomm.exe"
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] G:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] G:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-20\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] G:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] G:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://G:\PROGRA~1\MICROS~1\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - G:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - G:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - G:\PROGRA~1\MICROS~1\Office12\REFIEBAR.DLL
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5) - http://upload.facebook.com/controls/FacebookPhotoUploader5.cab
O16 - DPF: {A06BE318-C096-11D4-964F-0010A4D06F69} (TeleTVA Control) - https://tva.dgi.minefi.gouv.fr/activeX/TeleTVA.tva
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - G:\Program Files\AVG\AVG8\avgpp.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - G:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: avgrsstx.dll
O23 - Service: Apple Mobile Device - Apple, Inc. - G:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - G:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - G:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - G:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - G:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - G:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Sunbelt Kerio Personal Firewall 4 (KPF4) - Sunbelt Software - G:\Program Files\Sunbelt Software\Personal Firewall\kpf4ss.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - g:\program files\fichiers communs\logishrd\lvmvfm\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - G:\Program Files\Fichiers communs\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: lxdvCATSCustConnectService - Lexmark International, Inc. - G:\WINDOWS\System32\spool\DRIVERS\W32X86\3\\lxdvserv.exe
O23 - Service: lxdv_device - - G:\WINDOWS\system32\lxdvcoms.exe
O23 - Service: TVersityMediaServer - Unknown owner - G:\Program Files\TVersity\Media Server\MediaServer.exe