[Closed] Computer Shutting Down By Itself

My computer shuts itself off at random times. Following instructions from a 2007 thread on this subject, here is my:
Logfile of HijackThis v1.99.1
Scan saved at 8:03:55 AM, on 6/12/2010
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.17055)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\Program Files\Webroot\WebrootSecurity\WRConsumerService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\arservice.exe
C:\WINDOWS\system32\cisvc.exe
C:\Program Files\Executive Software\Diskeep\DkService.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Common Files\LightScribe\LSSrvc.exe
C:\Program Files\Google\Update\GoogleUpdate.exe
C:\WINDOWS\system32\PGPserv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\TiVo\Desktop\TiVoBeacon.exe
C:\Program Files\Webroot\WebrootSecurity\SpySweeper.exe
C:\Program Files\Canon\CAL\CALMAIN.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\HP\KBD\KBD.EXE
C:\windows\system\hpsysdrv.exe
C:\WINDOWS\Logi_MwX.Exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb07.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\BillP Studios\WinPatrol\WinPatrol.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\Webroot\WebrootSecurity\SpySweeperUI.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\TiVo\Desktop\Plus\TranscodingService.exe
C:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe
C:\Program Files\TiVo\Desktop\TiVoNotify.exe
C:\Program Files\TiVo\Desktop\TiVoServer.exe
C:\Program Files\TiVo\Desktop\TiVoTransfer.exe
C:\PROGRAM FILES\NOVOSOFT\HANDY BACKUP\hbagent.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkCalRem.exe
C:\PROGRAM FILES\LAVASOFT\AD-AWARE\AAWTRAY.EXE
C:\WINDOWS\EHOME\EHTRAY.EXE
C:\PROGRAM FILES\MUSICMATCH\MUSICMATCH JUKEBOX\MM_SERVER.EXE
C:\WINDOWS\eHome\ehmsas.exe
C:\PROGRAM FILES\MUSICMATCH\MUSICMATCH JUKEBOX\MMDiag.exe
C:\Program Files\MusicMatch\MusicMatch Jukebox\mim.exe
C:\PROGRAM FILES\SCANSOFT\OMNIPAGESE4.0\OPWARESE4.EXE
C:\PROGRAM FILES\HP DIGITALMEDIA ARCHIVE\DMASCHEDULER.EXE
C:\PROGRAM FILES\HP\DIGITAL IMAGING\BIN\HPQTRA08.EXE
C:\Program Files\HP\Digital Imaging\bin\hpqSTE08.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Program Files\Siber Systems\GoodSync\GoodSync.exe
C:\Program Files\Hijackthis\HijackThis.exe

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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_printenhancer.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Documents and Settings\All Users\Application Data\Real\RealPlayer\BrowserRecordPlugin\IE\rpbrowserrecordplugin.dll
O2 - BHO: bho2gr Class - {31FF080D-12A3-439A-A2EF-4BA95A3148E8} - C:\Program Files\GetRight\xx2gr.dll
O2 - BHO: RoboForm - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.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: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: Cooliris Plug-In for Internet Explorer - {EAEE5C74-6D0D-4aca-9232-0DA4A7B866BA} - C:\Program Files\PicLensIE\cooliris.dll
O2 - BHO: HP Smart BHO Class - {FFFFFFFF-CF4E-4F2B-BDC2-0E72E116A856} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O4 - HKLM\..\Run: [ftutil2] "C:\WINDOWS\system32\rundll32.exe" ftutil2.dll,SetWriteCacheMode
O4 - HKLM\..\Run: [Recguard] "C:\WINDOWS\SMINST\RECGUARD.EXE "
O4 - HKLM\..\Run: [KBD] "C:\HP\KBD\KBD.EXE "
O4 - HKLM\..\Run: [hpsysdrv] "c:\windows\system\hpsysdrv.exe "
O4 - HKLM\..\Run: [Logitech Utility] "C:\WINDOWS\Logi_MwX.Exe "
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] "C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb07.exe "
O4 - HKLM\..\Run: [WinPatrol] "C:\Program Files\BillP Studios\WinPatrol\WinPatrol.exe" -expressboot
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] "KHALMNPR.EXE "
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet
O4 - HKLM\..\Run: [NvCplDaemon] "RUNDLL32.EXE" C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [SpySweeper] "C:\Program Files\Webroot\WebrootSecurity\SpySweeperUI.exe" /startintray
O4 - HKLM\..\RunOnce: [Uninstall Adobe Download Manager] "C:\WINDOWS\system32\rundll32.exe" "C:\Program Files\NOS\bin\getPlus_Helper.dll ",Uninstall /IE2883E8F-472F-4fb0-9522-AC9BF37916A7 /Get1noarp
O4 - HKCU\..\Run: [Rapportexe] "C:\Program Files\Trusteer\Rapport\bin\RapportService.exe" -start -after_boot
O4 - HKCU\..\Run: [TranscodingService] C:\Program Files\TiVo\Desktop\Plus\\TranscodingService.exe
O4 - HKCU\..\Run: [RoboForm] "C:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe "
O4 - HKCU\..\Run: [TivoNotify] "C:\Program Files\TiVo\Desktop\TiVoNotify.exe" /service /registry /auto:TivoNotify
O4 - HKCU\..\Run: [TivoServer] "C:\Program Files\TiVo\Desktop\TiVoServer.exe" /service /registry /auto:TivoServer
O4 - HKCU\..\Run: [TivoTransfer] "C:\Program Files\TiVo\Desktop\TiVoTransfer.exe "
O4 - HKCU\..\Run: [Handy Backup 6.0] "C:\PROGRAM FILES\NOVOSOFT\HANDY BACKUP\hbagent.exe" -logon
O4 - Startup: WKCALREM.LNK = C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkCalRem.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O8 - Extra context menu item: Download with GetRight - C:\Program Files\GetRight\GRdownload.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Open with GetRight Browser - C:\Program Files\GetRight\GRbrowse.htm
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra button: Launch Cooliris - {3437D640-C91A-458f-89F5-B9095EA4C28B} - C:\Program Files\PicLensIE\cooliris.dll
O9 - Extra button: Bonjour - {7F9DB11C-E358-4ca6-A83D-ACC663939424} - C:\Program Files\Bonjour\ExplorerPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\Office12\REFIEBAR.DLL
O9 - Extra button: HP Smart Select - {DDE87865-83C5-48c4-8357-2F5B1AA84522} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O9 - Extra button: Internet Connection Help - {E2D4D26B-0180-43a4-B05F-462D6D54C789} - C:\WINDOWS\PCHEALTH\HELPCTR\Vendors\CN=Hewlett-Packard,L=Cupertino,S=Ca,C=US\IEButton\support.htm
O9 - Extra 'Tools' menuitem: Internet Connection Help - {E2D4D26B-0180-43a4-B05F-462D6D54C789} - C:\WINDOWS\PCHEALTH\HELPCTR\Vendors\CN=Hewlett-Packard,L=Cupertino,S=Ca,C=US\IEButton\support.htm
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - (no file)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - (no file)
O10 - Unknown file in Winsock LSP: c:\program files\bonjour\mdnsnsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\pgplsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\pgplsp.dll
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: Garmin Communicator Plug-In - https://my.garmin.com/static/m/cab/2.8.3/GarminAxControl.CAB
O16 - DPF: {74C861A1-D548-4916-BC8A-FDE92EDFF62C} - http://mediaplayer.walmart.com/installer/install.cab
O16 - DPF: {A27C56D2-3F58-4ABB-AA31-1168EDA6636F} (PCMaticVer Class) - http://utilities.pcpitstop.com/Nirvana/controls/pcmatic.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} (get_atlcom Class) - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O16 - DPF: {FFB3A759-98B1-446F-BDA9-909C6EB18CC7} (PCPitstop Exam) - http://utilities.pcpitstop.com/Optimize3/pcpitstop2.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{0B39C4F2-A3EC-4579-805B-9BF7C764E58D}: NameServer = 208.67.222.222,208.67.220.220
O17 - HKLM\System\CCS\Services\Tcpip\..\{4B604EAF-89DC-4890-A3F6-8AE867A040F1}: NameServer = 208.67.222.222,208.67.220.220
O17 - HKLM\System\CCS\Services\Tcpip\..\{892900FC-9814-4488-99C0-81491C1EE93D}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{B4686077-FA46-4561-A035-7DDA665FD41A}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CS1\Services\Tcpip\..\{0B39C4F2-A3EC-4579-805B-9BF7C764E58D}: NameServer = 208.67.222.222,208.67.220.220
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O20 - AppInit_DLLs: pgpmapih.dll "c:\progra~1\google\google desktop search\googledesktopnetwork3.dll "
O20 - Winlogon Notify: dimsntfy - C:\WINDOWS\
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: Canon Camera Access Library 8 (CCALib8) - Canon Inc. - C:\Program Files\Canon\CAL\CALMAIN.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\Diskeep\DkService.exe
O23 - Service: Google Desktop Manager 5.9.1005.12335 (GoogleDesktopManager-051210-111108) - Google - C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe" /svc (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Unknown owner - C:\Program Files\Java\jre6\bin\jqs.exe" -service -config "C:\Program Files\Java\jre6\lib\deploy\jqs\jqs.conf (file missing)
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PGPserv - PGP Corporation - C:\WINDOWS\system32\PGPserv.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: TiVo Beacon Service (TivoBeacon2) - Unknown owner - C:\Program Files\TiVo\Desktop\TiVoBeacon.exe" /service (file missing)
O23 - Service: Webroot Spy Sweeper Engine (WebrootSpySweeperService) - Webroot Software, Inc. (www.webroot.com) - C:\Program Files\Webroot\WebrootSecurity\SpySweeper.exe
O23 - Service: Webroot Client Service (WRConsumerService) - Webroot Software, Inc. - C:\Program Files\Webroot\WebrootSecurity\WRConsumerService.exe