Formatage? désinfection?

Bonjour,

Mon ordi est beaucoup trop lent. Il s'agit d'un IBM Z60m (?),et qui contient peu de ram (250?)! Pourtant je ne pense pas occuper la mémoire au max (ya-t-il un moyen de le voir?) Notez aussi que la batterie est naze, je fonctionne toujours sur secteur.

Suis-je infecté?? pourtant je fais ccleaner régulièrement.

J'ai avast professionnel (payé !, donc plutôt envie de formater ou nettoyer à fond que de changer mes programmes..). J'ai aussi Résident de spy-bot (?) mais je ne suis pas sûr qu'il soit activé.

Sur ma hotmail, je reçois souvent : "découvre qui te bloque sur msn, etc..". Est-ce un virus??

Je poste ci-dessous un log, pourriez-vous me dire ce qu'il y a lieu de faire : formatage? désinfection?

Le formatage supprime-t-il tous mes programmes et fichiers??

J'aimerais bien avoir une machine qui tourne et prends pas 2 h au démarrage et au lancement de programmes ou fenêtres internet !! désactiver processus au démarrage?? si oui, lesquels?

Merci pour votre aide

Logfile of random's system information tool 1.06 (written by random/random)
Run by Olivier at 2009-07-27 17:45:12
Microsoft Windows XP Professionnel Service Pack 3
System drive C: has 29 GB (40%) free of 72 GB
Total RAM: 510 MB (47% free)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 17:46:22, on 27/07/2009
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\ibmpmsvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\WgaTray.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\ThinkPad\ConnectUtilities\AcPrfMgrSvc.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Fichiers communs\Lenovo\Scheduler\scheduler_proxy.exe
C:\WINDOWS\system32\TpShocks.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\Lenovo\PkgMgr\HOTKEY\TPHKMGR.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Fichiers communs\Lenovo\tvt_reg_monitor_svc.exe
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Lenovo\PkgMgr\HOTKEY\TPONSCR.exe
C:\Program Files\Lenovo\PkgMgr\HOTKEY_1\TpScrex.exe
C:\Program Files\LENOVO\Message Center Plus\MCPLaunch.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.EXE
C:\PROGRA~1\THINKV~1\PrdCtr\LPMGR.exe
C:\WINDOWS\System32\TPHDEXLG.exe
C:\PROGRA~1\THINKV~1\PrdCtr\LPMLCHK.exe
C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
C:\WINDOWS\system32\TpKmpSVC.exe
C:\Program Files\ThinkPad\ConnectUtilities\ACWLIcon.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Fichiers communs\Lenovo\Scheduler\tvtsched.exe
C:\Program Files\ThinkPad\ConnectUtilities\ACTray.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\ThinkPad\Utilities\PWMDBSVC.EXE
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\ThinkPad\ConnectUtilities\AcSvc.exe
C:\Program Files\Lenovo\System Update\SUService.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\ccc.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\ThinkPad\ConnectUtilities\SvcGuiHlpr.exe
C:\PROGRA~1\Intel\Wireless\Bin\1XConfig.exe
C:\Program Files\ThinkPad\ConnectUtilities\AcMurocHlpr.exe
C:\Documents and Settings\Olivier\Bureau\RSIT.exe
C:\Program Files\trend micro\Olivier.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.missim.org/
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 = http://www.missim.org/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=127.0.0.1:9090
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local;<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: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.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: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [TVT Scheduler Proxy] C:\Program Files\Fichiers communs\Lenovo\Scheduler\scheduler_proxy.exe
O4 - HKLM\..\Run: [TpShocks] TpShocks.exe
O4 - HKLM\..\Run: [TPKMAPHELPER] C:\Program Files\ThinkPad\Utilities\TpKmapAp.exe -helper
O4 - HKLM\..\Run: [TPHOTKEY] C:\PROGRA~1\Lenovo\PkgMgr\HOTKEY\TPHKMGR.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [StartCCC] C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [PWRMGRTR] rundll32 C:\PROGRA~1\ThinkPad\UTILIT~1\PWRMGRTR.DLL,PwrMgrBkGndMonitor
O4 - HKLM\..\Run: [PSQLLauncher] "C:\Program Files\ThinkVantage Fingerprint Software\launcher.exe" /startup
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Message Center Plus] C:\Program Files\LENOVO\Message Center Plus\MCPLaunch.exe /start
O4 - HKLM\..\Run: [LPManager] C:\PROGRA~1\THINKV~1\PrdCtr\LPMGR.exe
O4 - HKLM\..\Run: [LPMailChecker] C:\PROGRA~1\THINKV~1\PrdCtr\LPMLCHK.exe
O4 - HKLM\..\Run: [EZEJMNAP] C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
O4 - HKLM\..\Run: [BLOG] rundll32 C:\PROGRA~1\ThinkPad\UTILIT~1\BatLogEx.DLL,StartBattLog
O4 - HKLM\..\Run: [ATIPTA] "C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [ACWLIcon] C:\Program Files\ThinkPad\ConnectUtilities\ACWLIcon.exe
O4 - HKLM\..\Run: [ACTray] C:\Program Files\ThinkPad\ConnectUtilities\ACTray.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [TomTomHOME.exe] "C:\Program Files\TomTom HOME 2\TomTomHOMERunner.exe"
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
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')
O4 - Startup: CCC.lnk = ?
O4 - Global Startup: Accélérateur de démarrage AutoCAD.lnk = C:\Program Files\Fichiers communs\Autodesk Shared\acstart16.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.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: 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
O16 - DPF: {2DAD3559-2923-4935-AD49-B673D2539944} (IASRunner Class) - https://support.lenovo.com/fr/en/
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: ACNotify - ACNotify.dll (file missing)
O23 - Service: Ac Profile Manager Service (AcPrfMgrSvc) - Lenovo - C:\Program Files\ThinkPad\ConnectUtilities\AcPrfMgrSvc.exe
O23 - Service: ACU Configuration Service (ACS) - Unknown owner - C:\WINDOWS\system32\acs.exe
O23 - Service: Access Connections Main Service (AcSvc) - Lenovo - C:\Program Files\ThinkPad\ConnectUtilities\AcSvc.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Autodesk Licensing Service - Autodesk, Inc. - C:\Program Files\Fichiers communs\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: EvtEng - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: ThinkPad PM Service (IBMPMSVC) - Lenovo - C:\WINDOWS\system32\ibmpmsvc.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: Power Manager DBC Service - Unknown owner - C:\Program Files\ThinkPad\Utilities\PWMDBSVC.EXE
O23 - Service: RegSrvc - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Service de rapport d'erreurs (ERSvc) - Unknown owner - C:\Program Files\tinyproxy\tinyproxy.exe (file missing)
O23 - Service: System Update (SUService) - Lenovo Group Limited - C:\Program Files\Lenovo\System Update\SUService.exe
O23 - Service: ThinkVantage Registry Monitor Service - Lenovo Group Limited - C:\Program Files\Fichiers communs\Lenovo\tvt_reg_monitor_svc.exe
O23 - Service: ThinkPad HDD APS Logging Service (TPHDEXLGSVC) - Lenovo. - C:\WINDOWS\System32\TPHDEXLG.exe
O23 - Service: IBM KCU Service (TpKmpSVC) - Unknown owner - C:\WINDOWS\system32\TpKmpSVC.exe
O23 - Service: TVT Scheduler - Lenovo Group Limited - C:\Program Files\Fichiers communs\Lenovo\Scheduler\tvtsched.exe