ParanoidAndroid

Thanks for that, I have been busy over the weekend (daughters' 18th) and will try all these steps as soon I get home.

I have already tried that but the earliest system restore is a day after the problem began :( I installed the first service pack the day after the problem thinking it might remedy the situation, alas, to no avail. The startup repair found no problems too :confused:

Sorry for the delay! Cannot start with 'Safe Mode', only method of logging on is through 'Last known good configuration' What am I looking for in the 'eventvwr'? Which part of it is relevant to the problem? Is it in the 'Summary of Administrative Events'? :confused: Apologies for being a bit of a novice and thanks again for the perserverance and assistance.

Where would I find the 'Startup Repair' if it has been pre-installed as I cannot recall receiving a Vista DVD when this computer was purchased? Note: Have found the 'Startup Repair' utility and it found no problems and my earliest system restore point is a day after the pc started having problems. I downloaded the first service pack for vista after the problems and it worked fine for that night but was back to it's old self in the morning! Is it anything to do with the 'msconfig' startup/service items? Thanks

Followed your instructions but no error code was generated :( Would it come on automatically when the computer was restarted? If not, where would I find it? Again, thanks for your help :) Note: I tried running 'chkdsk' but even that wouldn't start!

The name is Jude (I am a bloke btw) and I thank the Lord for people such as your good selves who devote their time and effort gratis to help novices such as myself :cool:

Hi Recently, my PC has decided to start re-booting itself. I have 2 accounts but never get the chance to press on any icon before it re-boots. I can start the computer up through F8 and using 'last known good configuration' and it works fine. I am running on Windows Vista, I have installed Hijack This and below is a log report, any help would be greatly appreciated:- Logfile of Trend Micro HijackThis v2.0.2 Scan saved at 10:43:19, on 27/04/2008 Platform: Windows Vista (WinNT 6.00.1904) MSIE: Internet Explorer v7.00 (7.00.6000.16643) Boot mode: Normal Running processes: C:\Windows\system32\taskeng.exe C:\Windows\system32\Dwm.exe C:\Windows\Explorer.EXE C:\Program Files\Windows Defender\MSASCui.exe C:\Windows\RtHDVCpl.exe C:\Windows\vsnpstd.exe C:\Windows\System32\rundll32.exe C:\Program Files\Alwil Software\Avast4\ashDisp.exe C:\Program Files\iTunes\iTunesHelper.exe C:\Program Files\Windows Sidebar\sidebar.exe C:\Program Files\Windows Media Player\wmpnscfg.exe C:\Windows\System32\mobsync.exe C:\Program Files\SpywareGuard\sgmain.exe C:\Windows\System32\rundll32.exe C:\Program Files\SpywareGuard\sgbhp.exe C:\Program Files\Trend Micro\HijackThis\HijackThis.exe R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = BBC - Homepage R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = Yahoo! UK & Ireland R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Live Search R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = Live Search R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = Yahoo! UK & Ireland R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = Yahoo! UK & Ireland R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file) O1 - Hosts: ::1 localhost O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file) O2 - BHO: ShowBarObj Class - {83A2F9B1-01A2-4AA5-87D1-45B6B8505E96} - C:\Windows\system32\ActiveToolBand.dll O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll O3 - Toolbar: Acer eDataSecurity Management - {5CBE3B7C-1E47-477e-A7DD-396DB0476E29} - C:\Windows\system32\eDStoolbar.dll O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe O4 - HKLM\..\Run: [snpstd] C:\Windows\vsnpstd.exe O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe" O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe" O4 - HKCU\..\Run: [sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE') O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE') O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE') O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe O4 - Global Startup: STK017 PNP Monitor.lnk = ? 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 O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe O23 - Service: AdwareAlert Scanning Engine (AdwareAlertSrv) - Unknown owner - C:\Program Files\AdwareAlert\AdwareAlert.srv.exe (file missing) O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe O23 - Service: Symantec Lic NetConnect service (CLTNetCnService) - Unknown owner - c:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe (file missing) O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe O23 - Service: iWinGamesInstaller - iWin Inc. - C:\Program Files\iWin Games\iWinGamesInstaller.exe -- End of file - 5604 bytes