When I start-up my computer (Sony Vaio desktop), Windows Vista (Business Edition) start-ups and then, just at the point when the desktop usually displays, the screen remains black.

I can't use the mouse and CTRL+ALT+DELETE doesn't work.

I have spent about 10 hours trying to find a resolution. I have tried several different spyware checkers, software to help with Windows bootup etc.

I have tried all the usual procedures such as System Restore and Windows Repair, but nothing works. I have also tried booting up from the Windows Vista CD, but the repair/fix on that doesn't work either.

I have tried all the steps suggested here on the forums including Malwarebytes' Anti-Malware.

I can start-up in Safe mode.

Can anyone help please?

Here is my report from HijackThis if it's of any use:

"Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 00:16:44, on 07/08/2008
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18000)
Boot mode: Safe mode with network support

Running processes:
C:\Windows\System32\smss.exe
C:\Windows\system32\csrss.exe
C:\Windows\system32\csrss.exe
C:\WINDOWS\SYSTEM32\wininit.exe
C:\Windows\system32\services.exe
C:\WINDOWS\SYSTEM32\winlogon.exe
C:\Windows\system32\lsass.exe
C:\Windows\system32\lsm.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\System32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\Explorer.EXE
C:\Program Files\McAfee\MPF\MPFSrv.exe
C:\Windows\system32\svchost.exe
D:\Program Files\Spyware Doctor\pctsAuxs.exe
D:\Program Files\Spyware Doctor\pctsSvc.exe
D:\Program Files\Spyware Doctor\pctsTray.exe
C:\Windows\System32\svchost.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\wmiprvse.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
c:\PROGRA~1\mcafee\msc\mcuimgr.exe
C:\Program Files\Microsoft Office\Office12\OUTLOOK.EXE
D:\Program Files\HijackThis\HijackThis.exe
C:\Windows\system32\wbem\wmiprvse.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 = http://affiliateblog.co.uk/topblogs/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: IE7Pro - {00011268-E188-40DF-A514-835FCD78B1BF} - D:\Program Files\IEPro\iepro.dll
O2 - BHO: TBSB09144 Class - {05AECC73-F213-47EF-ABBB-D6E3A3190778} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: flashget urlcatch - {2F364306-AA45-47B5-9F9D-39A8B94E7EF7} - D:\Program Files\FlashGet\jccatch.dll
O2 - BHO: McAntiPhishingBHO - {377C180E-6F0E-4D4C-980F-F45BD3D40CF4} - c:\PROGRA~1\mcafee\msk\mcapbho.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\PROGRA~3\SPYBOT~1\SDHelper.dll
O2 - BHO: RoboForm - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files\Roboform\roboform.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Program Files\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - C:\Program Files\McAfee\VirusScan\scriptsn.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - (no file)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - (no file)
O2 - BHO: Snap Shots - {BB81C3DB-2DEA-4AE9-96B3-13E6661FF03B} - (no file)
O2 - BHO: TransactionProtector BHO - {C1656CCA-D2EA-4A32-94AE-AE0B180E6449} - (no file)
O2 - BHO: FlashGet GetFlash Class - {F156768E-81EF-470C-9057-481BA8380DBA} - D:\Program Files\FlashGet\getflash.dll
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Roboform\roboform.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - (no file)
O3 - Toolbar: Snap Shots - {8CD8EA48-D284-477E-B6DF-85D1E39D855F} - (no file)
O3 - Toolbar: Transaction Protector - {E7620C98-FCCC-40E5-92EC-C7685D2E1E40} - (no file)
O3 - Toolbar: Free Traffic Bar by E-Business Tutor - {F275EF20-1E52-47B8-98D3-0537A2EB8223} - (no file)
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Program Files\Common Files\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [Logitech Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [lphcvt1j0ep4e] C:\Windows\system32\lphcvt1j0ep4e.exe
O4 - HKLM\..\Run: [avgnt] "D:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [Autorun Eater] D:\Program Files\Autorun Eater\oldmcdonald.exe
O4 - HKLM\..\Run: [ISTray] "D:\Program Files\Spyware Doctor\pctsTray.exe"
O4 - HKLM\..\Run: [mcagent_exe] C:\Program Files\McAfee.com\Agent\mcagent.exe /runkey
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\RunOnce: [GrpConv] grpconv -o
O4 - HKCU\..\Run: [DSS] C:\Windows\EditIPWzrd.exe
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'NETWORK SERVICE')
O4 - Startup: AutorunsDisabled
O4 - Startup: Microsoft Office Outlook 2007.lnk = ?
O4 - Startup: Trillian.lnk = D:\ProgramFiles\Trillian\trillian.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O8 - Extra context menu item: RoboForm Toolbar - file://C:\Program Files\Roboform\RoboFormComShowToolbar.html
O9 - Extra button: (no name) - AutorunsDisabled - (no file)
O9 - Extra button: IE7Pro Preferences - {0026439F-A980-4f18-8C95-4F1CBBF9C1D8} - D:\Program Files\IEPro\iepro.dll
O9 - Extra 'Tools' menuitem: IE7Pro Preferences - {0026439F-A980-4f18-8C95-4F1CBBF9C1D8} - D:\Program Files\IEPro\iepro.dll
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Sky - {08E730A4-FB02-45BD-A900-01E4AD8016F6} - http://www.sky.com (file missing)
O9 - Extra button: Blog This - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Blog This in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra button: RoboForm - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Roboform\RoboFormComShowToolbar.html
O9 - Extra 'Tools' menuitem: RoboForm Toolbar - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Roboform\RoboFormComShowToolbar.html
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~1\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~3\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~3\SPYBOT~1\SDHelper.dll
O13 - Gopher Prefix:
O17 - HKLM\System\CCS\Services\Tcpip\..\{F6868C67-C38D-4867-847F-CD23C7D047EB}: NameServer = 208.67.222.222,208.67.220.220
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Program Files\Microsoft Office\Office12\GrooveSystemServices.dll
O23 - Service: McAfee Application Installer Cleanup (0244751218048432) (0244751218048432mcinstcleanup) - McAfee, Inc. - C:\Windows\TEMP\024475~1.EXE
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: Avira AntiVir Personal - Free Antivirus Scheduler (AntiVirScheduler) - Avira GmbH - D:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: Avira AntiVir Personal - Free Antivirus Guard (AntiVirService) - Avira GmbH - D:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: CbEvtSvc - Unknown owner - C:\Windows\System32\CbEvtSvc.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: KService - Kontiki Inc. - C:\Program Files\Kontiki\KService.exe
O23 - Service: LVCOMSer - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVMVFM\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\program files\common files\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Proxy Service (McProxy) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
O23 - Service: McAfee Real-time Scanner (McShield) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
O23 - Service: McAfee SystemGuards (McSysmon) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - C:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: McAfee SpamKiller Service (MSK80Service) - McAfee, Inc. - C:\Program Files\McAfee\MSK\MskSrver.exe
O23 - Service: ProtexisLicensing - Unknown owner - C:\Windows\system32\PSIService.exe
O23 - Service: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files\Spybot - Search & Destroy\SDWinSec.exe
O23 - Service: PC Tools Auxiliary Service (sdAuxService) - PC Tools - D:\Program Files\Spyware Doctor\pctsAuxs.exe
O23 - Service: PC Tools Security Service (sdCoreService) - PC Tools - D:\Program Files\Spyware Doctor\pctsSvc.exe

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