Windows en anglais ET français

Bonjour a tous.
J'ai un petit problème, il se trouve que XP ainsi que nombreux de mes programmes tel outlook express ou internet explorer, sont en anglais alors que je voudrai qu'ils soient en français.
Que faire?
Merci d'avance.
Voici mon log hijack this:

Logfile of HijackThis v1.99.1
Scan saved at 12:34:34, on 21/06/05
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
c:\windows\System\DLLPlug.exe
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\MSGLOOP.EXE
C:\PROGRAM FILES\EASY INTERNET\ENCMONTR.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON CLEANSWEEP\CSINJECT.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\ZONELABS\VSMON.EXE
C:\WINDOWS\SYSTEM\MSG32.EXE
C:\OUTILS\AVAST\ALWIL SOFTWARE\AVAST4\ASHSERV.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\MMKEYBD.EXE
C:\WINDOWS\SYSTEM\HPSYSDRV.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\OUTILS\AVAST\ALWIL SOFTWARE\AVAST4\ASHMAISV.EXE
C:\WINDOWS\LOADQM.EXE
C:\OUTILS\AVAST\ALWIL SOFTWARE\AVAST4\ASHWEBSV.EXE
C:\PROGRAM FILES\WANADOO\CNXMON.EXE
C:\PROGRAM FILES\WANADOO\TASKBARICON.EXE
C:\WINDOWS\SYSTEM\WDBTNMGR.EXE
C:\OUTILS\ZONE LABS\ZONEALARM\ZLCLIENT.EXE
C:\PROGRAM FILES\IOMEGA\TOOLS\IMGICON.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\KEYBDMGR.EXE
C:\PROGRAM FILES\SAGEM\SAGEM F@ST 800-840\DSLMON.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\NETROPA\ONSCREEN DISPLAY\OSD.EXE
C:\WINDOWS\SYSTEM\RPCSS.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\MMUSBKB2.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\ENOLA\EANNE\QUENTIN\ANTIVIRUS\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.wanadoo.fr/go/qqo/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.wanadoo.fr/go/qqo/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.wanadoo.fr
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\PROGRA~1\WANADOO\SEARCH~2.DLL
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] c:\windows\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] c:\windows\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [Keyboard Manager] C:\Program Files\Netropa\One-touch Multimedia Keyboard\MMKeybd.exe
O4 - HKLM\..\Run: [HPScanPatch] C:\WINDOWS\SYSTEM\HPScanFix.exe
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [Tweak UI] RUNDLL32.EXE TWEAKUI.CPL,TweakMeUp
O4 - HKLM\..\Run: [ashMaiSv] C:\OUTILS\AVAST\ALWILS~1\AVAST4\ashmaisv.exe
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [avast! Web Scanner] C:\OUTILS\AVAST\ALWILS~1\AVAST4\ASHWEBSV.EXE
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\WANADOO\CnxMon.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\WANADOO\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\WANADOO\TaskbarIcon.exe
O4 - HKLM\..\Run: [WD Button Manager] WDBtnMgr.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\OUTILS\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [Encompass_ENCMONTR] C:\Program Files\Easy Internet\ENCMONTR.EXE
O4 - HKLM\..\RunServices: [CSINJECT.EXE] C:\Program Files\Norton SystemWorks\Norton CleanSweep\CSINJECT.EXE
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [TrueVector] C:\WINDOWS\SYSTEM\ZONELABS\VSMON.EXE -service
O4 - HKLM\..\RunServices: [avast!] C:\OUTILS\AVAST\Alwil Software\Avast4\ashServ.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE" /background
O4 - Startup: Options de démarrage Iomega.lnk = C:\Program Files\Iomega\Tools\IMGSTART.EXE
O4 - Startup: IomegaWare.lnk = C:\Program Files\Iomega\Iomegaware\COMMANDER.EXE
O4 - Startup: Iomega Disk Icons.lnk = C:\Program Files\Iomega\Tools\IMGICON.EXE
O4 - Startup: QuikSync.lnk = C:\Program Files\Iomega\QuikSync\QUIKSYNC.EXE
O4 - Startup: Iomega Backup Scheduler.lnk = C:\Program Files\Iomega\Iomega Backup\dtiom98.exe
O4 - Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - User Startup: Options de démarrage Iomega.lnk = C:\Program Files\Iomega\Tools\IMGSTART.EXE
O4 - User Startup: IomegaWare.lnk = C:\Program Files\Iomega\Iomegaware\COMMANDER.EXE
O4 - User Startup: Iomega Disk Icons.lnk = C:\Program Files\Iomega\Tools\IMGICON.EXE
O4 - User Startup: QuikSync.lnk = C:\Program Files\Iomega\QuikSync\QUIKSYNC.EXE
O4 - User Startup: Iomega Backup Scheduler.lnk = C:\Program Files\Iomega\Iomega Backup\dtiom98.exe
O4 - User Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\SYSTEM\Shdocvw.dll
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\SYSTEM\MSJAVA.DLL
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\SYSTEM\MSJAVA.DLL
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O12 - Plugin for .mov: C:\PROGRA~1\INTERN~1\PLUGINS\npqtplugin.dll
O15 - Trusted Zone: *.groupemicroconcept.com
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O16 - DPF: {2FC9A21E-2069-4E47-8235-36318989DB13} (PPSDKActiveXScanner.MainScreen) - http://www.pestscan.com/scanner/axscanner.cab
O16 - DPF: {2CF5AACE-F33C-4079-82E5-E5DA4559D51B} (ActiveFormX Contrôle) - http://www.groupemicroconcept.com/ActiveX/ChargementFichier.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab