Fichier thumbs.db

slt,cmt cava?
jé un prb de fichier thumbs.db qui me géne a chaque dossier j les trouve est c que c normal?
et jé constate que lpc est un peu lent et le naviguateur c bloque de temps en temps est c que c'est grave?
et merci bien
jé fait un analyse avec hijackthis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 07:21:54, on 28/02/2011
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\svchost.exe
C:\Program Files\AVG\AVG9\avgchsvx.exe
C:\Program Files\AVG\AVG9\avgrsx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
C:\PROGRA~1\AVG\AVG9\avgtray.exe
C:\Program Files\FlashGet Network\FlashGet universal\FlashGet.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\My Connection\BackgroundService\ModemListener.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\LG Electronics\Modem USB LG Electronics\UMAService.exe
C:\Program Files\LG Electronics\LG EV-DO Rev.A USB Modem\Modem Software\REVAService.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\AVG\AVG9\avgwdsvc.exe
C:\WINDOWS\system32\cisvc.exe
C:\Program Files\My Connection\BackgroundService\ServiceManager.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
C:\Program Files\AVG\AVG9\avgnsx.exe
C:\Program Files\AVG\AVG9\avgemc.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Hewlett-Packard\Shared\HpqToaster.exe
C:\Program Files\My Connection\ModemApplication.exe
C:\Program Files\Opera\opera.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.google.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.wana.ma
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.files-ftp.com/~unicorni/phpBB2/index.php
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: flashget2 urlcatch - {1F364306-AA45-47B5-9F9D-39A8B94E7EF1} - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\bhoCATCH.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O4 - HKLM\..\Run: [hpWirelessAssistant] %ProgramFiles%\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [FlashGet] "C:\Program Files\FlashGet Network\FlashGet universal\FlashGet.exe" /min
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [DWQueuedReporting] "C:\PROGRA~1\FICHIE~1\MICROS~1\DW\dwtrig20.exe" -t
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [IAM Wave ModemListener] C:\Program Files\My Connection\BackgroundService\ModemListener.exe start
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [FlashGet] "C:\Program Files\FlashGet Network\FlashGet universal\FlashGet.exe" /min
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [UMService] C:\Program Files\LG Electronics\Modem USB LG Electronics\UMAService.exe
O4 - HKCU\..\Run: [REVAService] C:\Program Files\LG Electronics\LG EV-DO Rev.A USB Modem\Modem Software\REVAService.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
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')
O8 - Extra context menu item: &Download All by FlashGet - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\Bhoall.htm
O8 - Extra context menu item: &Download by FlashGet - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\Bholink.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe (file missing)
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.files-ftp.com/~unicorni/phpBB2/index.php
O16 - DPF: {E77F23EB-E7AB-4502-8F37-247DBAF1A147} (Windows Live Hotmail Photo Upload Tool) - http://gfx2.hotmail.com/mail/w4/pr01/photouploadcontrol/MSNPUpld.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{A4A0FD9F-D2D7-4D15-80EB-975647BE037E}: NameServer = 212.217.0.1 212.217.0.12
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: AVG Free E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgemc.exe
O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: IAM Wave Modem Device Helper - Unknown owner - C:\Program Files\My Connection\BackgroundService\ServiceManager.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - C:\Program Files\ma-config.com\maconfservice.exe