ordi ralenti

bonjour,
voilà depuis quelque jours mon ordi ralenti au bout d'un certain temps
d'utilisation.
quelqu'un peut-il m'aider svp.
est-il infecté?
pourtant j'ai fait un scan avec avast il m'a trouvé un adware que j'ai
supprimé mais ça n'a rien changé.
je vous post un scan hidjack si ça peut vous aider.
merci de votre aide
grisouille30
Logfile of HijackThis v1.99.1
Scan saved at 19:09:07, on 11/04/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)

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:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.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\svchost.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATI9BE.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\Program Files\Creative\Shared Files\CamTray.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtMng.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosA2dp.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtHid.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtHsp.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows
Live\WLLoginProxy.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Alwil Software\Avast4\ashSimpl.exe
C:\Program Files\Hijackthis Version Française\hijackthis vf.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =ht tp://fr.msn.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar =http://g .msn.fr/0SEFRFR/SAOS02
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =http://w ww.msn.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =ht tp://fr.msn.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =http://f r.msn.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
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: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} -
C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live -
{9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers
communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} -
c:\program files\google\googletoolbar3.dll
O2 - BHO: Windows Live Toolbar Helper -
{BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live
Toolbar\msntb.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1 A}
- C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} -
C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\progra m
files\google\googletoolbar3.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0 }
- C:\Program Files\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [EPSON Stylus CX3600 Series]
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATI9BE.EXE /P26 "EPSON Stylu s
CX3600 Series" /O6 "USB001" /M "Stylus CX3600"
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [SpywareTerminator] "C:\Program Files\Spyware
Terminator\SpywareTerminatorShield.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program
Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows
Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Shareaza] "C:\Program Files\Shareaza\Shareaza.exe" -tra y
O4 - Global Startup: Bluetooth Manager.lnk = ?
O8 - Extra context menu item: &eBay Search - res://C:\Program
Files\eBay\eBay Toolbar2\eBayTb.dll/RCSearch.html
O8 - Extra context menu item: &Windows Live Search - res://C:\Program
Files\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Add to Windows &Live Favorites -http://favor ites.live.com/quickadd.aspx
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} -
C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) -
{08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program
Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} -
%windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 -
{85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file
missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} (Creative Software
AutoUpdate) -http://www.creative.com/softwareupd.../CTSUEng.c ab
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) -http:/ /messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {2250C29C-C5E9-4F55-BE4E-01E45A40FCF1} (CMediaMix Object) -http ://musicmix.messenger.msn.com/Medialogic.CAB
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) -http://gfx1.mail.live.com/mail/w1/r...NPUpld.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) -http:// messenger.zone.msn.com/FR-FR/a-UNO1/GAME_UNO1.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -ht tp://update.microsoft.com/windowsup.../client...
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} -http://www.inoculer.com /antivirus/Msie/bitdefender.cab
O16 - DPF: {AED98630-0251-4E83-917D-43A23D66D507} -http://activex.microgam ing.com/DLHelper/version7/DLHelper.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) -http://messenger.zone.msn.com/binar...b56649.cab
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) -ht tp://game12.zylom.com/activex/zylomgamesplayer.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient
Class) -http://messenger.zone.msn.com/binar...ent.cab569 07.cab
O16 - DPF: {D8089245-3211-40F6-819B-9E5E92CD61A2} (FlashXControl Object) - https://rivernile.microgaming.com/f...lashAX.cab
O16 - DPF: {F5A7706B-B9C0-4C89-A715-7A0C6B05DD48} (Minesweeper Flags Class )
-http://messenger.zone.msn.com/binar...b56986.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software
AutoUpdate Support Package) -http://www.creative.com/softwareupdate/su2/oc x/15035/CTPID.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} -
C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} -
C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: wlmailhtml - {03C514A3-1EFB-4856-9F99-10D7BE1653C0} -
C:\Program Files\Windows Live\Mail\mailcomm.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} -
C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program
Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software -
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil
Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwi l
Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil
Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program
Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: TOSHIBA Bluetooth Service - TOSHIBA CORPORATION - C:\Progra m
Files\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.exe