Probleme sur mon systeme sysfader et key:HKEY

Bonjour,

explique moi ça svp j win sp3 et IE8

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:37:24, on 09/08/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.20861)
Boot mode: Normal

Running processes:
C:\WINDOWS.0\System32\smss.exe
C:\WINDOWS.0\system32\winlogon.exe
C:\WINDOWS.0\system32\services.exe
C:\WINDOWS.0\system32\lsass.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\System32\svchost.exe
C:\WINDOWS.0\system32\spoolsv.exe
C:\WINDOWS.0\Explorer.EXE
C:\Program Files\IDT\WDM\sttray.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\wuauclt.exe
E:\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [SysTrayApp] %ProgramFiles%\IDT\WDM\sttray.exe
O4 - HKCU\..\Run: [EPSON TX100 Series] C:\WINDOWS.0\System32\spool\DRIVERS\W32X86\3\E_FATIEDP.EXE /FU "C:\WINDOWS.0\TEMP\E_S6C.tmp" /EF "HKCU"
O4 - HKUS\S-1-5-20\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-20\..\RunOnce: [SweetRegistry] rundll32 advpack.dll,LaunchINFSection SweetReg.inf,PerUserStub (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'Default user')
O4 - Startup: Notification de cadeaux MSN.lnk = C:\Documents and Settings\Administrateur\Application Data\Microsoft\Notification de cadeaux MSN\lsnfier.exe
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS.0\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS.0\Network Diagnostic\xpnetdiag.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{761B44CA-F77C-48E7-931B-C702550D71DC}: NameServer = 208.67.222.222 208.67.220.220
O23 - Service: Audio Service (STacSV) - Unknown owner - j:\sound\idt\wdm\vista\STacSV.exe (file missing)