Ca rame pour arreter, Internet déconnecte ...

Le probleme:
pour arreter le pc : environ 5 mn a partir du moment ou on a cliqué sur " Démarrer / Arreter

internet se déconnecte au bout d'un certain temps variable (10 mn, 1/2 h, 1 heure ), la connection est toujours valide mais impossible d'aller sur un site. obligé d'arreter le pc et redemarrer pour reconnecter. le reboot ne suffit pas.
Ci joint Hi jack:

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\savedump.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\virusAVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\SECURI~1\av_fw\backweb\1044199\Program\SERVIC~1.EXE
C:\Program Files\Securitoo\av_fw\Anti-Virus\fsgk32st.exe
C:\Program Files\Securitoo\av_fw\Anti-Virus\FSGK32.EXE
C:\Program Files\Securitoo\av_fw\backweb\1044199\program\fsbwsys.exe
C:\Program Files\Securitoo\av_fw\Anti-Virus\fssm32.exe
C:\Program Files\Securitoo\av_fw\fswsclds.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Securitoo\av_fw\Common\FSMA32.EXE
C:\Program Files\Securitoo\av_fw\Common\FSMB32.EXE
C:\Program Files\Securitoo\av_fw\Common\FCH32.EXE
C:\Program Files\Securitoo\av_fw\Common\FAMEH32.EXE
C:\Program Files\Securitoo\av_fw\DFW\Program\fsdfwd.exe
C:\Program Files\Securitoo\av_fw\Anti-Virus\fsav32.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\Wanadoo\CnxMon.exe
C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe
C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
C:\Program Files\Securitoo\av_fw\Common\FSM32.EXE
C:\WINDOWS\system32\RunDll32.exe
C:\Program Files\Fichiers communs\Logitech\QCDriver\LVCOMS.EXE
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\Program Files\QuickTime\qttask.exe
C:\virusAVG Anti-Spyware 7.5\avgas.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Securitoo\av_fw\backweb\1044199\Program\BackWeb-1044199.exe
C:\Program Files\Wanadoo\EspaceWanadoo.exe
C:\Program Files\Wanadoo\ComComp.exe
C:\Program Files\Wanadoo\Watch.exe
C:\Documents and Settings\Eric\Mes documents\eric.litterst\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://www.orange.fr/portail
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.orange.fr/portail
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
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: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: EoRezoBHO - {64F56FC1-1272-44CD-BA6E-39723696E350} - C:\horloge\eoRezo\EoAdv\EOREZO~1.DLL (file missing)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_07\bin\ssv.dll
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\Wanadoo\CnxMon.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\Securitoo\av_fw\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Program Files\Securitoo\av_fw\TNB\TNBUtil.exe" /CHECKALL
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_07\bin\jusched.exe
O4 - HKLM\..\Run: [LVCOMS] C:\Program Files\Fichiers communs\Logitech\QCDriver\LVCOMS.EXE
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\virusAVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe"
O8 - Extra context menu item: &Search - http://ko.bar.need2find.com/KO/menusearch.html?p=KO
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
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
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_07\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.dll
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - https://www.orange.fr/portail (file missing) (HKCU)
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/default/kavwebscan_unicode.cab
O16 - DPF: {6A060448-60F9-11D5-A6CD-0002B31F7455} (ExentInf Class) -
O16 - DPF: {DC75FEF6-165D-4D25-A518-C8C4BDA7BAA6} (CPlayFirstDinerDashControl Object) - http://jeux.wanadoo.fr/online2/diner_dash/DinerDash.1.0.0.58.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{C23F1C4F-D90D-4D57-9BD1-56033A702FAF}: NameServer = 80.10.246.130 80.10.246.3
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Filter: text/html - (no CLSID) - (no file)
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\virusAVG Anti-Spyware 7.5\guard.exe
O23 - Service: Securitoo AntiVirus Firewall (BackWeb Client - 1044199) - Unknown owner - C:\PROGRA~1\SECURI~1\av_fw\backweb\1044199\Program\SERVIC~1.EXE
O23 - Service: F-Secure Gatekeeper Handler Starter - F-Secure Corp. - C:\Program Files\Securitoo\av_fw\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Authentication Agent (FSAA) - Unknown owner - C:\Program Files\Securitoo\av_fw\Common\FSAA.EXE (file missing)
O23 - Service: fsbwsys - F-Secure Corp. - C:\Program Files\Securitoo\av_fw\backweb\1044199\program\fsbwsys.exe
O23 - Service: F-Secure Distributed Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Program Files\Securitoo\av_fw\DFW\Program\fsdfwd.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Program Files\Securitoo\av_fw\Common\FSMA32.EXE
O23 - Service: F-Secure Windows Security Center Legacy Detection Service (Fswsclds) - F-Secure Corporation - C:\Program Files\Securitoo\av_fw\fswsclds.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe