Probleme de virus mon pc est malade

Bonjour,
mon pc est infesté de virus cela n'arrete plus ,pourtant je n'avais jammais eu de probleme avec avast auparavant
je le nettoie pourtant régulierement ccleaner ,avg spyware, spybot 1 fois par semaine
pc ralenti au maximum
memoire vive inssufisante
arret intempestif
merci d'avance a la personne qui voudra bien m'aider

hijackhis du 29/04
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Brother\Brmfcmon\BrMfcmon.exe
C:\Program Files\PrintKey 2000 Fr\Printkey 2000 Fr.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.free.fr/freebox/index.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: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: SYSTRAN Web Translator 5.0 - {A5899B52-3AF9-4F56-85FE-AD7B3BE8490F} - C:\Program Files\SYSTRAN\5.0\Personal\IEPlugIn.dll
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [TomTomHOME.exe] "C:\Program Files\TomTom HOME\TomTomHOME.exe" -s
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SSBkgdUpdate] "C:\Program Files\Fichiers communs\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe" -Embedding -boot
O4 - HKLM\..\Run: [PaperPort PTD] C:\Program Files\ScanSoft\PaperPort\pptd40nt.exe
O4 - HKLM\..\Run: [IndexSearch] C:\Program Files\ScanSoft\PaperPort\IndexSearch.exe
O4 - HKLM\..\Run: [BrMfcWnd] C:\Program Files\Brother\Brmfcmon\BrMfcWnd.exe /AUTORUN
O4 - HKLM\..\Run: [SetDefPrt] C:\Program Files\Brother\Brmfl06a\BrStDvPt.exe
O4 - HKLM\..\Run: [ControlCenter3] C:\Program Files\Brother\ControlCenter3\brctrcen.exe /autorun
O4 - HKLM\..\Run: [PPort9reminder] "C:\Program Files\ScanSoft\PaperPort\WebEreg\Ereg.exe" -r "C:\Documents and Settings\All Users\Application Data\ScanSoft\PaperPort\9\Config\ereg.ini"
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [qoimhyduq] c:\documents and settings\jr\local settings\application data\qoimhyduq.exe qoimhyduq
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
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: La Solution Ciel (L).lnk = C:\CIEL\STARTER.EXE
O4 - Startup: RC.exe.lnk = C:\Program Files\DTV\DVB-T USB 2.0\RC.exe
O4 - Startup: PrintKey 2000 Fr.lnk = C:\Program Files\PrintKey 2000 Fr\Printkey 2000 Fr.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Recherche AOL Toolbar - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
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: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
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 - 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: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe