Hey Guys please Help Explorer keeps shutting down right at reboot and keeps recurring over and over again
Heres My log

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 4:56:50 PM, on 1/22/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)
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:\windows\system32\spoolsv.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\windows\system32\nvsvc32.exe
C:\windows\system32\svchost.exe
C:\Program Files\Lexmark 8300 Series\lxcjmon.exe
C:\Program Files\Lexmark 8300 Series\ezprint.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Unlocker\UnlockerAssistant.exe
C:\windows\system32\RUNDLL32.EXE
C:\windows\system32\ctfmon.exe
C:\windows\system32\wuauclt.exe
C:\WINDOWS\system32\lxcjcoms.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\uTorrent\uTorrent.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\windows\system32\taskmgr.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

O4 - HKLM\..\Run: [lxcjmon.exe] "C:\Program Files\Lexmark 8300 Series\lxcjmon.exe"
O4 - HKLM\..\Run: [EzPrint] "C:\Program Files\Lexmark 8300 Series\ezprint.exe"
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [UnlockerAssistant] "C:\Program Files\Unlocker\UnlockerAssistant.exe"
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [ctfmon.exe] C:\windows\system32\ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\windows\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\windows\Network Diagnostic\xpnetdiag.exe
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
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - http://dl8-cdn-01.sun.com/s/ESD5/JSCDL/jre/6u11-b90/jinstall-6u11-windows-i586-jc.cab?e=1232326844391&h=a1c181949ee64282bccbbd8c9fc4e614/&filename=jinstall-6u11-windows-i586-jc.cab
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: lxcj_device - - C:\WINDOWS\system32\lxcjcoms.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\windows\system32\nvsvc32.exe
O23 - Service: PC Tools Auxiliary Service (sdAuxService) - Unknown owner - C:\Program Files\Spyware Doctor\pctsAuxs.exe (file missing)
O23 - Service: PC Tools Security Service (sdCoreService) - Unknown owner - C:\Program Files\Spyware Doctor\pctsSvc.exe (file missing)
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - Unknown owner - C:\windows\System32\TuneUpDefragService.exe (file missing)
O23 - Service: TuneUp Program Statistics Service (TuneUp.ProgramStatisticsSvc) - Unknown owner - C:\windows\System32\TUProgSt.exe (file missing)

--
End of file - 3920 bytes

Everything in the log Seems completely okay to me. No suspicious activity. Did u ever suspend 'explorer.exe' from startup using any third-party program?? maybe that is causing the problem..

have you tried running a chkdisk it could be something simple like cross linked files or try running in safe mode and see if the same thing happens let me know what goes on after you have tried these please

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