"Auto-Cochage" de case "lecture seu

Merci pour ta proposition, mais quand je suis dans l'éditeur de registre, la clé dont ils parlent n'eiste pas :(

une autre idée ?

@Del_ZurBon j'ai fais un scan avec hijack et ça donne ça :

Logfile of HijackThis v1.99.1
Scan saved at 18:05:34, on 20/02/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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
H:\Program files\AVG\AVG Anti-Spyware 7.5\guard.exe
E:\PROGRA~1\avg anti virus\avgamsvr.exe
E:\PROGRA~1\avg anti virus\avgupsvc.exe
E:\PROGRA~1\avg anti virus\avgemc.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\System32\svchost.exe
E:\PROGRA~1\avg anti virus\avgcc.exe
H:\Program files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\HP\hpcoretech\hpcmpmgr.exe
C:\Program Files\Messenger\MSMSGS.EXE
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Program Files\Utilitaire réseau pour SAGEM Wi-Fi 11g USB adapter\WLANUTL.exe
H:\Program files\HP\Digital Imaging\bin\hpqgalry.exe
C:\Documents and Settings\Del_Zur\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = c:\secure32.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com/?p=us
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = c:\secure32.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {371EE1EF-F177-1390-7807-08525DC0E55C} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O4 - HKLM\..\Run: [AVG7_CC] E:\PROGRA~1\avg anti virus\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [HP Software Update] "H:\Program files\HP\HP Software Update\HPWuSchd2.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.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: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - Global Startup: Démarrage rapide du logiciel HP Image Zone.lnk = H:\Program files\HP\Digital Imaging\bin\hpqthb08.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = H:\Program files\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Utilitaire réseau pour SAGEM Wi-Fi 11g USB adapter.lnk = ?
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: Sothink SWF Catcher - C:\Program Files\Fichiers communs\SourceTec\SWF Catcher\InternetExplorer.htm
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O15 - Trusted Zone: http://www.linerider.org
O16 - DPF: {39B0684F-D7BF-4743-B050-FDC3F48F7E3B} (FilePlanet Download Control Class) - https://www.fileplanet.com/
O16 - DPF: {AB86CE53-AC9F-449F-9399-D8ABCA09EC09} (Get_ActiveX Control) - https://h17000.www1.hp.com/ewfrf-JAVA/Secure/HPGetDownloadManager.ocx
O16 - DPF: {CD995117-98E5-4169-9920-6C12D4C0B548} (HGPlugin9USA Class) - http://gamedownload.ijjimax.com/gamedownload/dist/hgstart/HGPlugin9USA.cab
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Fichiers communs\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: partnershipreg - C:\Documents and Settings\All Users\Documents\Settings\partnership.dll (file missing)
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - H:\Program files\AVG\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - E:\PROGRA~1\avg anti virus\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - E:\PROGRA~1\avg anti virus\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - E:\PROGRA~1\avg anti virus\avgemc.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Microsoft authenticate service (MsaSvc) - Unknown owner - C:\WINDOWS\system32\msasvc.exe (file missing)
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe

si ça peut aider....