Mon pc "rame"

Bonjour,

mon ordinateur est très lent
il a été formaté il y a 2 mois
hier je l'ai scanné : pas de virus
et je l'ai défragmenté, et il rame toujours
pouvez-vous m'aider
merci

voici mon log

Logfile of HijackThis v1.99.1
Scan saved at 15:42:06, on 09/11/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\Google Updater\GoogleUpdater.exe
C:\Program Files\F-Secure\Anti-Virus\fsgk32st.exe
C:\Program Files\F-Secure\Common\FSMA32.EXE
C:\Program Files\F-Secure\Anti-Virus\FSGK32.EXE
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Program Files\F-Secure\Common\FSMB32.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\F-Secure\Common\FCH32.EXE
C:\Program Files\F-Secure\Common\FAMEH32.EXE
C:\Program Files\F-Secure\Anti-Virus\fsqh.exe
C:\Program Files\F-Secure\Common\FNRB32.EXE
C:\Program Files\F-Secure\Anti-Virus\fssm32.exe
C:\Program Files\F-Secure\Common\FIH32.EXE
C:\Program Files\F-Secure\FSAUA\program\fsaua.exe
C:\Program Files\F-Secure\FWES\Program\fsdfwd.exe
C:\Program Files\F-Secure\Anti-Virus\fsav32.exe
C:\Program Files\F-Secure\FSGUI\fsguidll.exe
C:\Program Files\Microsoft Office\Office10\WINWORD.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Répertoire temporaire 1 pour hijackthis[1].zip\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.google.fr/?gws_rd=ssl
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
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: EoRezoBHO - {64F56FC1-1272-44CD-BA6E-39723696E350} - C:\Program Files\EoRezo\EoAdv\EoRezoBHO.dll (file missing)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.1.615.5858\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\F-Secure\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Program Files\F-Secure\FSGUI\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [AdobeUpdater] C:\Program Files\Fichiers communs\Adobe\Updater5\AdobeUpdater.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Outil de mise à jour Google.lnk = C:\Program Files\Google\Google Updater\GoogleUpdater.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\f-secure\fsps\program\fslsp.dll
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} (HardwareDetection Control) - https://www.touslesdrivers.com/index.php?v_page=29
O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - F-Secure Corporation - C:\Program Files\F-Secure\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Network Request Broker - F-Secure Corporation - C:\Program Files\F-Secure\Common\FNRB32.EXE
O23 - Service: F-Secure Automatic Update Agent (FSAUA) - F-Secure Corporation - C:\Program Files\F-Secure\FSAUA\program\fsaua.exe
O23 - Service: F-Secure Anti-Virus Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Program Files\F-Secure\FWES\Program\fsdfwd.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Program Files\F-Secure\Common\FSMA32.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe