Spyware ou fin de vie??Besoin d'aide

Mon Pc s'éteint sans arrêt, est très lent. La liaison internet ne veut plus démarrer. Chaque scan avec les outils classiques (type spybot) provoque un arrêt brutal.
Voici ce que donne Hijackthis:
Logfile of HijackThis v1.99.1

Scan saved at 22:04:41, on 14/01/2007

Platform: Windows XP SP2 (WinNT 5.01.2600)

MSIE: Unable to get Internet Explorer version!

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:\WINDOWS\system32\spoolsv.exe

C:\WINDOWS\system32\netdde.exe

C:\WINDOWS\System32\Ati2evxx.exe

C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe

C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe

C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe

C:\WINDOWS\system32\drivers\CDAC11BA.EXE

C:\WINDOWS\system32\CTsvcCDA.EXE

C:\WINDOWS\System32\FTRTSVC.exe

C:\WINDOWS\System32\HPZipm12.exe

C:\WINDOWS\System32\svchost.exe

C:\WINDOWS\System32\tlntsvr.exe

C:\WINDOWS\system32\UAService7.exe

C:\Program Files\NetDrive\wdService.exe

C:\WINDOWS\system32\WgaTray.exe

C:\WINDOWS\Explorer.EXE

C:\WINDOWS\system32\pctspk.exe

C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb12.exe

C:\WINDOWS\Hcontrol.exe

C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe

C:\WINDOWS\ATKOSD.exe

C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe

C:\Program Files\QuickTime\qttask.exe

C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe

C:\Program Files\Logitech\Video\LogiTray.exe

C:\WINDOWS\system32\LVCOMSX.EXE

C:\Program Files\NetDrive\netdrive.exe

C:\WINDOWS\system32\ctfmon.exe

C:\WINDOWS\system32\wscntfy.exe

C:\Program Files\Logitech\Video\FxSvr2.exe

C:\WINDOWS\system32\wuauclt.exe

C:\Documents and Settings\utilisateur\Bureau\HijackThis.exe

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens

O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll

O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll

O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll

O4 - HKLM\..\Run: [PCTVOICE] pctspk.exe

O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe

O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb12.exe

O4 - HKLM\..\Run: [Hcontrol] C:\WINDOWS\Hcontrol.exe

O4 - HKLM\..\Run: [ATIPTA] "C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe"

O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe

O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe"

O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime

O4 - HKLM\..\Run: [AVG7_CC] "C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe" /STARTUP

O4 - HKLM\..\Run: [LogitechVideoRepair] "C:\Program Files\Logitech\Video\ISStart.exe"

O4 - HKLM\..\Run: [LogitechVideoTray] "C:\Program Files\Logitech\Video\LogiTray.exe"

O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\system32\LVCOMSX.EXE

O4 - HKLM\..\Run: [WebDriveTray] "C:\Program Files\NetDrive\netdrive.exe" /trayicon

O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe

O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background

O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background

O4 - HKCU\..\Run: [Spyware Begone] c:\spywarebegone-fs\freescan.exe -FastScan

O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe

O4 - Global Startup: Logiciel Kodak EasyShare.lnk = C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe

O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000

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: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll

O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll

O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesfr.dll

O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesfr.dll

O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL

O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Fichiers communs\Microsoft Shared\Help\hxds.dll

O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\Program Files\Fichiers communs\Microsoft Shared\OFFICE12\MSOXMLMF.DLL

O20 - Winlogon Notify: khhig - C:\WINDOWS\

O20 - Winlogon Notify: qopqr - qopqr.dll (file missing)

O20 - Winlogon Notify: rqrqr - rqrqr.dll (file missing)

O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll

O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)

O21 - SSODL: Keraguni - {82F3404F-F971-464B-928D-07BD963DDA91} - C:\WINDOWS\system32\engambio.dll

O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe

O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe

O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe

O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe

O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe

O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE

O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE

O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom - C:\WINDOWS\System32\FTRTSVC.exe

O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe

O23 - Service: Kodak Camera Connection Software (KodakCCS) - Eastman Kodak Company - C:\WINDOWS\system32\drivers\KodakCCS.exe

O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe

O23 - Service: SecuROM User Access Service (V7) (UserAccess7) - Unknown owner - C:\WINDOWS\system32\UAService7.exe

O23 - Service: WebDrive Service (WebDriveService) - Unknown owner - C:\Program Files\NetDrive\wdService.exe

i quelqu'un peut m'aider, ce serait super, sachant que je sui une débutante dans tout ce qui est PC
merci