Systems is affected from Advirs virus..Please help...?? My boss is very very angry...

My system is badly affected from advirs virus. i am not able to open any drive, while opening drives it gives me message that " this operation has been cancelled due to restriction in effect on this computer. please contact system adminstrator"..
please remember i am the adminstrator user to the computer.
the Trend Micro HijackThis log report is follows.. please guide.. imediately.. ???
THANSK IN ADVANCE...
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ogfile of Trend Micro HijackThis v2.0.2
Scan saved at 3:31:28 PM, on 27/09/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Common Files\LightScribe\LSSrvc.exe
C:\Program Files\PDF Complete\pdfsvc.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\hijack.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\cmd.exe
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyServer = 10.88.1.200:443
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 10.*.*.*;*.adhaar.hr.gov.in;<local>
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{6AB44708-6BA6-4261-92F6-61CD5A5B1DFA}: NameServer = 10.88.1.10,10.88.1.11
O17 - HKLM\System\CS1\Services\Tcpip\..\{6AB44708-6BA6-4261-92F6-61CD5A5B1DFA}: NameServer = 10.88.1.10,10.88.1.11
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: PC Angel (PCA) - SoftThinks - C:\WINDOWS\SMINST\PCAngel.exe
O23 - Service: PDF Document Manager (pdfcDispatcher) - PDF Complete Inc - C:\Program Files\PDF Complete\pdfsvc.exe
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe
O24 - Desktop Component 0: (no name) - (no file)
--
End of file - 3645 bytes

[paroh]

First download and run spybot spyware scanner. Then run a complete antivirus scan of ur computer. if ur problem solve it is good otherwise

download below given software and run them

spybot

http://www.spybotupdates.com/files/spybotsd160.exe

FixIEDef

http://downloads.malwareteks.com/FixIEDef.exe

and ComboFix

http://www.techsupportforum.com/combofix.exe

comodo firewall

http://as2.download.comodo.com/cfp/download/setups/CFP_Setup_3.0.25.378_XP_Vista_x32.exe

Always use firewall comodo firewall , a good antivirus , and a spyware scanner