how to solve(windows.tool.disabled)..please help me..

i don't know how to restore it..
here is the result of scan:
Malwarebytes' Anti-Malware 1.44
Database version: 3628
Windows 6.0.6001 Service Pack 1
Internet Explorer 7.0.6001.18000

25/1/2010 6:27:50 AM
mbam-log-2010-01-25 (06-27-50).txt

Scan type: Quick Scan
Objects scanned: 101131
Time elapsed: 2 minute(s), 56 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore\disableconfig (Windows.Tool.Disabled) -> Not selected for removal.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

Please download the current version of HijackThis from HERE

• Double click and run the installer.
  
• It will install to C:\Program Files\Trend Micro\HijackThis\hijackthis.exe
  
• After installing, you should get the user agreement, press accept and Hijack This will run.
  
• Select Do a system scan and save a log file. This will open a notepad file of everything Hijack This found, copy and paste it back here.
  

what i'm going to do then..
here is the result:
Logfile of Trend Micro HijackThis v2.0.3 (BETA)
Scan saved at 2:31:47 PM, on 25/1/2010
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18385)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Dell\DellDock\DellDock.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\DellTPad\Apoint.exe
C:\Program Files\IDT\WDM\sttray.exe
C:\Windows\System32\igfxtray.exe
C:\Windows\System32\hkcmd.exe
C:\Windows\System32\igfxpers.exe
C:\Windows\System32\WLTRAY.EXE
C:\Program Files\Dell\QuickSet\quickset.exe
C:\Program Files\Dell DataSafe Online\DataSafeOnline.exe
C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe
C:\Program Files\Dell Webcam\Dell Webcam Central\WebcamDell2.exe
C:\Program Files\Alwil Software\Avast4\ashDisp.exe
C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe
C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\Dell Video Chat\DellVideoChat.exe
C:\Windows\system32\igfxsrvc.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BTTray.exe
C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\DellTPad\Apntex.exe
C:\Program Files\DellTPad\HidFind.exe
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Users\User\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\User\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\User\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Windows\system32\wuauclt.exe
C:\Users\User\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\User\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Program Files\Trend\HijackThis\hijackthis.exe\TrendMicro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www1.ap.dell.com/content/default.aspx?c=my&l=en&s=gen
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www1.ap.dell.com/content/default.aspx?c=my&l=en&s=gen
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://us.rd.yahoo.com/customize/ie/defaults/su/msgr9/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://us.rd.yahoo.com/customize/ie/defaults/sb/msgr9/*http://www.yahoo.com/ext/search/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://us.rd.yahoo.com/customize/ie/defaults/sp/msgr9/*http://www.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
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O1 - Hosts: 209.85.225.99 www.hijackthis.de
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O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\PROGRA~1\Yahoo!\Companion\Installs\cpn0\yt.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Program Files\Microsoft Office\Office12\GrooveShellExtensions.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\Yahoo!\Companion\Installs\cpn0\yt.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [Apoint] C:\Program Files\DellTPad\Apoint.exe
O4 - HKLM\..\Run: [SysTrayApp] %ProgramFiles%\IDT\WDM\sttray.exe
O4 - HKLM\..\Run: [IgfxTray] C:\Windows\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\Windows\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\Windows\system32\igfxpers.exe
O4 - HKLM\..\Run: [Broadcom Wireless Manager UI] C:\Windows\system32\WLTRAY.exe
O4 - HKLM\..\Run: [QuickSet] C:\Program Files\Dell\QuickSet\QuickSet.exe
O4 - HKLM\..\Run: [Dell DataSafe Online] "C:\Program Files\Dell DataSafe Online\DataSafeOnline.exe" /m
O4 - HKLM\..\Run: [PDVDDXSrv] "C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe"
O4 - HKLM\..\Run: [Dell Webcam Central] "C:\Program Files\Dell Webcam\Dell Webcam Central\WebcamDell2.exe" /mode2
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [ctfmon.exe] ctfmon.exe
O4 - HKLM\..\Run: [YSearchProtection] "C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe"
O4 - HKLM\..\Run: [Malwarebytes Anti-Malware (reboot)] "C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe" /runcleanupscript
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [SightSpeed] "C:\Program Files\Dell Video Chat\DellVideoChat.exe" -bootmode
O4 - HKCU\..\Run: [Search Protection] C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
O4 - HKCU\..\Run: [Messenger (Yahoo!)] "C:\PROGRA~1\Yahoo!\MESSEN~1\YahooMessenger.exe" -quiet
O4 - .DEFAULT User Startup: Dell Dock First Run.lnk = C:\Program Files\Dell\DellDock\DellDock.exe (User 'Default user')
O4 - Startup: Adobe Gamma.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Startup: Dell Dock.lnk = C:\Program Files\Dell\DellDock\DellDock.exe
O4 - Startup: OneNote 2007 Screen Clipper and Launcher.lnk = C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE
O4 - Global Startup: Bluetooth.lnk = ?
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\Windows\system32\GPhotos.scr/200
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Send image to &Bluetooth Device... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O8 - Extra context menu item: Send page to &Bluetooth Device... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O13 - Gopher Prefix:
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Program Files\Microsoft Office\Office12\GrooveSystemServices.dll
O20 - Winlogon Notify: GoToAssist - C:\Program Files\Citrix\GoToAssist\514\G2AWinLogon.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Andrea ST Filters Service (AESTFilters) - Andrea Electronics Corporation - C:\Windows\System32\DriverStore\FileRepository\stwrt.inf_f6ef8056\aestsrv.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: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: Dock Login Service (DockLoginService) - Stardock Corporation - C:\Program Files\Dell\DellDock\DockLogin.exe
O23 - Service: GoToAssist - Citrix Online, a division of Citrix Systems, Inc. - C:\Program Files\Citrix\GoToAssist\514\g2aservice.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: SupportSoft Sprocket Service (DellSupportCenter) (sprtsvc_DellSupportCenter) - SupportSoft, Inc. - C:\Program Files\Dell Support Center\bin\sprtsvc.exe
O23 - Service: Audio Service (STacSV) - IDT, Inc. - C:\Windows\System32\DriverStore\FileRepository\stwrt.inf_f6ef8056\STacSV.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files\Common Files\SureThing Shared\stllssvr.exe
O23 - Service: @C:\Program Files\TuneUp Utilities 2010\TuneUpDefragService.exe,-1 (TuneUp.Defrag) - TuneUp Software - C:\Program Files\TuneUp Utilities 2010\TuneUpDefragService.exe
O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\Windows\System32\WLTRYSVC.EXE
O23 - Service: Yahoo! Updater (YahooAUService) - Yahoo! Inc. - C:\Program Files\Yahoo!\SoftwareUpdate\YahooAUService.exe

--
End of file - 14027 bytes

Please download and run this tool.

Download Malwarebytes' Anti-Malware from Here

Double Click mbam-setup.exe to install the application.

• Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
  
• If an update is found, it will download and install the latest version.
  
• Once the program has loaded, select "Perform Quick Scan", then click Scan.
  
• The scan may take some time to finish,so please be patient.
  
• When the scan is complete, click OK, then Show Results to view the results.
  
• Make sure that everything is checked, and click Remove Selected.
  
• When disinfection is completed, a log will open in Notepad and you may be prompted to Restart. (See Note)
  
• The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
  

Note:
If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts.
Click OK to either and let MBAM proceed with the disinfection process.
If asked to restart the computer, please do so immediately.

Post the contents of the MBAM Log.

the result of scanning same as before
here the result:
Malwarebytes' Anti-Malware 1.44
Database version: 3639
Windows 6.0.6001 Service Pack 1
Internet Explorer 7.0.6001.18000

26/1/2010 6:06:23 PM
mbam-log-2010-01-26 (18-06-23).txt

Scan type: Quick Scan
Objects scanned: 101991
Time elapsed: 4 minute(s), 9 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore\disableconfig (Windows.Tool.Disabled) -> Delete on reboot.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)