Mon pc rame et je ne sais pas pourquoi

J'ai norton antivirus et mon pc a commencé a ramé du jours au lendemain ..!

Logfile of HijackThis v1.99.1
Scan saved at 20:34:28, on 19/09/2006
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
c:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
c:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
c:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
c:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
c:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\WIDCOMM\Logiciel Bluetooth\bin\btwdins.exe
C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
c:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
C:\Program Files\Hp\HP Software Update\HPWuSchd2.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\HPQ\Quick Launch Buttons\EabServr.exe
C:\Program Files\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
C:\Program Files\HP\Digital Imaging\bin\hpqimzone.exe
C:\PROGRA~1\hpq\Shared\HPQTOA~1.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
c:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Documents and Settings\Alex\Mes documents\Logiciel\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://www.bing.com/?cc=fr&toHttps=1&redig=55729C844D6A45819CAD368B3E178C9F
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www8.hp.com/fr/fr/home.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: NAV Helper - {A8F38D8D-E480-4D52-B7A2-731BB6995FDD} - c:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Norton AntiVirus - {C4069E3A-68F1-403E-B40E-20066696354B} - c:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\Hp\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ccApp] "c:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [eabconfg.cpl] C:\Program Files\HPQ\Quick Launch Buttons\EabServr.exe /Start
O4 - HKLM\..\Run: [Cpqset] C:\Program Files\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [RecGuard] C:\Windows\SMINST\RecGuard.exe
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Program Files\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: Démarrage rapide de HP Photosmart Premier.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqthb08.exe
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Envoyer à &Bluetooth - C:\Program Files\WIDCOMM\Logiciel Bluetooth\btsendto_ie_ctx.htm
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Logiciel Bluetooth\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-4017 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Logiciel Bluetooth\btsendto_ie.htm
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
O14 - IERESET.INF: START_PAGE_URL=https://www8.hp.com/fr/fr/home.html
O17 - HKLM\System\CCS\Services\Tcpip\..\{ABAD8AD9-A759-40E5-AD12-778995CD545C}: NameServer = 86.64.145.141 84.103.237.141
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Logiciel Bluetooth\bin\btwdins.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Internet Security Password Validation (ccISPwdSvc) - Symantec Corporation - c:\Program Files\Norton Internet Security\ccPwdSvc.exe
O23 - Service: Symantec Network Proxy (ccProxy) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: COM Host (comHost) - Symantec Corporation - c:\Program Files\Norton Internet Security\comHost.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
O23 - Service: Service Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - c:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: Symantec AVScan (SAVScan) - Symantec Corporation - c:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe