Pus de c: accessible sous 2000 pro

est-ce que tu peux y accéder par le mode sans échec?

justement lors du mode sans echec il me refait: "pas de fichier d'échange, etc...
pourtant il boot..?
peut-être une infection ou le resultat d'une infection?
j'ai bien essayer un sfc.exe chkdsk etc...
cela ne change rien
voici un petit hijackthis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 07:49:48, on 23/04/2009
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Boot mode: Normal

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\cisvc.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\oodag.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\UStorSrv.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\Program Files\UltraVNC\WinVNC.exe
C:\WINNT\System32\mspmspsv.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\atiptaxx.exe
C:\PROGRA~1\DATACA~1\FLashKsk.exe
D:\Temp\HijackThis.exe

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.20.254:3128
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Program Files\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [PowerQuest Startup Utility] C:\Program Files\PowerQuest\PartitionMagic4\UTILITY\MMOVER32\PQINIT.EXE
O4 - HKLM\..\Run: [NeroCheck] C:\WINNT\System32\NeroCheck.exe
O4 - HKLM\..\Run: [DataCaching] C:\PROGRA~1\DATACA~1\FLashKsk.exe
O4 - HKLM\..\Run: [WinVNC] "C:\Program Files\UltraVNC\WinVNC.exe" -servicehelper
O4 - HKLM\..\Run: [SunJavaUpdateSched] c:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKLM\..\Run: [Selector StartApp] C:\RCS\V14\StartApp.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKCU\..\Run: [SuperCopier2.exe] C:\Program Files\SuperCopier2\SuperCopier2.exe
O4 - HKUS\.DEFAULT\..\Run: [internat.exe] internat.exe (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [^SetupICWDesktop] C:\Program Files\Internet Explorer\Connection Wizard\icwconn1.exe /desktop (User 'Default user')
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - c:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - c:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINNT\System32\Ati2evxx.exe
O23 - Service: AppSight Black Box Service (BBxService) - Unknown owner - C:\RCS\Bin\BBxService.exe (file missing)
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: O&O Defrag - O&O Software GmbH - C:\WINNT\system32\oodag.exe
O23 - Service: RCS Date/Time Service (RCSDateTimeService) - Unknown owner - C:\RCS\V14\rcsdttms.exe (file missing)
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: SPBBCSvc - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: UStorage Server Service - OTi - C:\WINNT\system32\UStorSrv.exe
O23 - Service: VNC Server (winvnc) - UltraVNC - C:\Program Files\UltraVNC\WinVNC.exe