PC lent, demande interpretation HijackThis

Bonjour, je vous copie et colle les info ci-dessous de l'ordinateur d'un ami qui est anormalement lent !!!
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 17:50:28, on 19/12/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\F-Secure\Common\FSM32.EXE
C:\WINDOWS\System32\RUNDLL32.EXE
C:\WINDOWS\System32\rundll32.exe
C:\PROGRA~1\SECURI~1\174112\Program\SERVIC~2.EXE
C:\Program Files\F-Secure\Common\FSMA32.EXE
C:\WINDOWS\System32\FTRTSVC.exe
C:\Program Files\F-Secure\Common\FSMB32.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRA~1\SECURI~1\174112\Program\BACKWE~2.EXE
C:\Program Files\F-Secure\Common\FCH32.EXE
C:\Program Files\F-Secure\Common\FAMEH32.EXE
C:\Program Files\F-Secure\Common\FSGK32.EXE
C:\Program Files\F-Secure\Anti-Virus\fsav32.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Wanadoo\GestionnaireInternet.exe
C:\Program Files\Wanadoo\ComComp.exe
C:\PROGRA~1\Wanadoo\Toaster.exe
C:\PROGRA~1\Wanadoo\Inactivity.exe
C:\PROGRA~1\Wanadoo\PollingModule.exe
C:\WINDOWS\System32\ALERTM~1\ALERTM~1.EXE
C:\Program Files\Wanadoo\Watch.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\MSN Messenger\usnsvc.exe
C:\WINDOWS\System32\taskmgr.exe
C:\Documents and Settings\Administrateur\Local Settings\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.orange.fr/portail
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Orange
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\PROGRA~1\Wanadoo\SEARCH~1.DLL
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\F-Secure\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
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')
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: Orange - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - https://www.orange.fr/portail (file missing) (HKCU)
O21 - SSODL: printers - {3BD0AF3F-4491-4AD7-BC7F-8B4F8EC53836} - libcintles3.dll (file missing)
O23 - Service: Securitoo AntiVirus (BackWeb Client - 174112) - Unknown owner - C:\PROGRA~1\SECURI~1\174112\Program\SERVIC~2.EXE
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Program Files\F-Secure\Common\FSMA32.EXE
O23 - Service: F-Secure Windows Security Center Legacy Detection Service (Fswsclds) - F-Secure Corporation - C:\Program Files\F-Secure\fswsclds.exe
O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom - C:\WINDOWS\System32\FTRTSVC.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe