Hello everyone.
I am really racking my brains here. I hope anyone can help, I truly am stuck.
A few nights ago I turned off my PC with NO prior major updates (no software installed, no updates, no reg editing). The next morning I turn it on, I log in however the desktop is blank. No start bar, no desktop icons, its as if EXPLORER.EXE hasnt loaded - but it has. Its in the taskmanager but clearly isnt working correctly.
I close the explorer.exe and open a new one - nothing. It crashes. I can sometimes open cmd.exe, but thats quite rare. Then some times, I will put in firefox.exe in the taskmanager run box and it works?! However this is rare and most the time the computer on startup is totally unresponsive. Heres what I've done to fix:
Add new admin user, login with this - didnt work
Start in safe mode - worked
System restore - restored to earlier date succesfully, but made no difference
Total antivirus scan - found a few, removed all successfully, still didnt work
Full chkdsk - fixed some errors, still didnt work
Unchecked all msconfig startup boxes - still didnt work
Started in diagnostic mode from msconfig (load basic drivers and services only) - still didnt work
Disabled all old, unused, and unneeded drivers - still didnt work
Really need help on this one guys, the almost constant state is just as if explorer.exe isnt loaded. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell is also explorere.exe which is what it should be

would really appreciate any help everyone. Attatched a highjackthis log in the mere hope of anything!
Code:
Logfile of HijackThis v1.99.1
Scan saved at 11:43:37 PM, on 10/6/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\System32\dlcgcoms.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\explorer.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\regedit.exe
C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe
C:\Program Files\HijackThis\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat
6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: OIN Analytics - {6B221E01-F517-4959-8C41-81948E7F2F17} - C:\Program Files\OINAnalytics\OINAnalytics1.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} -
C:\PROGRA~1\FlashFXP\IEFlash.dll
O4 - HKLM\..\Run: [DLCGCATS] rundll32 C:\WINDOWS\system32\spool\DRIVERS\W32X86\3\DLCGtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program
Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program
Files\Java\jre1.6.0_07\bin\ssv.dll
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: 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: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) -
http://gfx2.hotmail.com/mail/w3/pr01/resources/MSNPUpld.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -
http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1212006921848
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) -
http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1212006905348
O16 - DPF: {E1E73B44-2D20-47A9-9CA2-B534CEBBF856} (F-Secure Health Check 1.0) -
http://support.f-secure.com/enu/home/onlineservices/fshc/fscax.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft
Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware
2007\aawservice.exe
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems
Shared\Service\Adobelmsvc.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device
Support\bin\AppleMobileDeviceService.exe
O23 - Service: dlcg_device - - C:\WINDOWS\System32\dlcgcoms.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner -
%ProgramFiles%\WinPcap\rpcapd.exe" -d -f "%ProgramFiles%\WinPcap\rpcapd.ini (file missing)