computer shuts down during Avast folder selection scan in safe mode

I was doing my weekly maintenance scans using Avast Home Edition, but my computer shut down during a thourough folder selection scan. Tried to do it again in safe mode and it shut down again. After running it a second and third time I noticed it shut down at this command - C:\Users\Owner\AppData\Roaming\WinRAR. I uninstalled WinRAR and all noticable RAR files using Revo Uninstaller, but the command still showed up in the scan and the computer shut down three more times before it was able to boot up completely. Please help...Thanks...

Here's the logfile from HijackThis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 3:39:16 PM, on 5/13/2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18226)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Alwil Software\Avast4\ashDisp.exe
C:\Program Files\COMODO\COMODO Internet Security\cfp.exe
C:\Program Files\SUPERAntiSpyware\SUPERANTISPYWARE.EXE
C:\Users\Owner\AppData\Local\Temp\SSUPDATE.EXE
C:\Program Files\Verizon Wireless\VZAccess Manager\VZAccess Manager.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Users\Owner\Downloads\hijackgpthis(2).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://www.yahoo.com/
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\Internet Explorer\SearchURL,(Default) = http://search.yahoo.com/search?fr=mcafee&p=%s
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:\Program Files\Microsoft\Search Enhancement Pack\Search Helper\SearchHelper.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: McAfee SiteAdvisor BHO - {B164E929-A1B6-4A06-B104-2CD0E90A88FF} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.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: Windows Live Toolbar Helper - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - C:\Program Files\Windows Live\Toolbar\wltcore.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: &Windows Live Toolbar - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - C:\Program Files\Windows Live\Toolbar\wltcore.dll
O3 - Toolbar: McAfee SiteAdvisor Toolbar - {0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
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: [COMODO Internet Security] "C:\Program Files\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKCU\..\Run: [SUPERAntiSpyware] C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.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')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
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: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\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
O13 - Gopher Prefix:
O16 - DPF: {0742B9EF-8C83-41CA-BFBA-830A59E23533} (Microsoft Data Collection Control) - https://support.microsoft.com/OAS/ActiveX/MSDcode.cab
O16 - DPF: {3860DD98-0549-4D50-AA72-5D17D200EE10} (Windows Live OneCare safety scanner control) - http://cdn.scan.onecare.live.com/resource/download/scanner/en-us/wlscctrl2.cab
O16 - DPF: {56762DEC-6B0D-4AB4-A8AD-989993B5D08B} (OnlineScanner Control) - http://www.eset.eu/buxus/docs/OnlineScanner.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{AE90468D-D9E8-4DAD-B558-2B85FE0E458A}: NameServer = 66.174.95.44 66.174.92.14
O18 - Protocol: sacore - {5513F07E-936B-4E52-9B00-067394E91CC5} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.dll
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.dll
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: COMODO Internet Security Helper Service (cmdAgent) - Unknown owner - C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: McAfee SiteAdvisor Service - Unknown owner - C:\Program Files\McAfee\SiteAdvisor\McSACore.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe

--
End of file - 6625 bytes

Hello.

• Open HijackThis.
  
• When Hijack This opens, click "Open the Misc Tools section"
  
• Then select "Open Uninstall Manager"
  
• Click on "Save List..." (generates uninstall_list.txt)
  
• Click Save, copy and paste the results in your next post.
  

Here's my uninstall list:

32 Bit HP CIO Components Installer
Adobe AIR
Adobe AIR
Adobe Flash Player 10 ActiveX
Adobe Flash Player 10 Plugin
Adobe Reader 9.1
Atheros for Acer Driver 5.3.0.56_Foxconn Installation Program
Atheros for Acer Driver v7.3.1.73_Foxconn Installation Program
avast! Antivirus
Broadcom Wireless LAN Driver 4.100.15.7_Negative_Foxconn
CCleaner (remove only)
Choice Guard
COMODO Internet Security
ESET Online Scanner
HijackThis 2.0.2
Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595)
Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484)
HP Customer Participation Program 10.0
HP Deskjet F2200 All-In-One Driver Software 10.0 Rel .3
HP Imaging Device Functions 10.0
HP Photosmart Essential 2.5
HP Smart Web Printing
HP Solution Center 10.0
HP Update
InfraRecorder
Java(TM) 6 Update 13
Junk Mail filter update
Malwarebytes' Anti-Malware
McAfee SiteAdvisor
Microsoft .NET Framework 3.5 SP1
Microsoft .NET Framework 3.5 SP1
Microsoft Office Live Add-in 1.3
Microsoft Office Outlook Connector
Microsoft Office Professional Edition 2003
Microsoft Search Enhancement Pack
Microsoft Silverlight
Microsoft SQL Server 2005 Compact Edition [ENU]
Microsoft Sync Framework Runtime Native v1.0 (x86)
Microsoft Sync Framework Services Native v1.0 (x86)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.17
Mozilla Firefox (3.0.10)
MSVCRT
MSXML 4.0 SP2 (KB954430)
NVIDIA Drivers
PANTECH PC USB Modem Software
Revo Uninstaller 1.83
RICOH R5C83x/84x Flash Media Controller Driver Ver.3.51.01
Security Update for CAPICOM (KB931906)
Security Update for CAPICOM (KB931906)
Shop for HP Supplies
SUPERAntiSpyware Free Edition
Ubuntu
VZAccess Manager
Windows Driver Package - ENE (enecir) HIDClass (09/04/2008 2.6.0.0)
Windows Live Call
Windows Live Communications Platform
Windows Live Essentials
Windows Live Essentials
Windows Live Family Safety
Windows Live Mail
Windows Live Messenger
Windows Live Movie Maker Beta
Windows Live OneCare safety scanner
Windows Live OneCare safety scanner
Windows Live Photo Gallery
Windows Live Sign-in Assistant
Windows Live Sync
Windows Live Toolbar
Windows Live Upload Tool
Windows Live Writer

Hello.

• Click Start >> Control Panel.
  
• Under the Programs click Uninstall a Program
  
• Highlight Revo Uninstaller 1.83
  
• Click on the Uninstall/Change button at the top.
  

Please download the OTMoveIt3 by OldTimer.

• Save it to your desktop.
  
• Please double-click OTMoveIt3.exe to run it.
  
• Copy the bolded text below to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose Copy):
  
  
  :files
  C:\Users\Owner\AppData\Roaming\WinRAR
  
  
  
• Return to OTMoveIt3, right click in the "Paste instructions for items to be Moved" window (under the light blue bar) and choose Paste.
  
• Click the red Moveit! button.
  
• Copy everything in the Results window (under the green bar) to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy), and paste it in your next reply.
  
• Close OTMoveIt3
  

If a file or folder cannot be moved immediately you may be asked to reboot the machine to finish the move process. If you are asked to reboot the machine choose Yes.

Please post the OTMoveIt log.

Here's the log from OTMoveIt3:

========== FILES ==========
C:\Users\Owner\AppData\Roaming\WinRAR moved successfully.

OTMoveIt3 by OldTimer - Version 1.0.11.0 log created on 05132009_171016

Hello.
Delete this folder in bold:
C:\_OTMoveIt

If you need compression software now, try 7zip, it's free and easy to use.

Okay, I deleted it to the recylcle bin. Should I empty it now?
I've never tried 7zip, but it's worth a shot...

Link
http://downloads.sourceforge.net/sevenzip/7z465.exe

If you zip/rar files don't show the correct picture, then right click a zip/rar > "Open With..."

OTMoveIt has been deleted. Should I try to run the scan again?
By the way, thanx for the URL...

You can try the scan now if you want to.