Gestionnaire desactiver

Bonjour, s'il y a quelqu'un pour m'aider a résoudre un problème que j'ai , je serais vraiment reconnaissant.
- j'arrive pas a activer les fichiers cachés : dans outil il n y a que synchroniser
- mon gestionnaires des taches est désactiver, "Le Gestionnaire des tâches a été désactivé par votre administrateur".
je colle le rapport de Hijackthis:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:17:20, on 23/11/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Unable to get Internet Explorer version!
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:\WINDOWS\system32\svchost.exe
C:\Program Files\AVG\AVG9\avgchsvx.exe
C:\Program Files\AVG\AVG9\avgrsx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\AVG\AVG9\Identity Protection\Agent\Bin\AVGIDSAgent.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Elaborate Bytes\VirtualCloneDrive\VCDDaemon.exe
C:\PROGRA~1\AVG\AVG9\avgtray.exe
C:\Program Files\WinMover\WinMover.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\AVG\AVG9\avgwdsvc.exe
C:\Program Files\AVG\AVG9\avgfws9.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\AVG\AVG9\Identity Protection\agent\bin\avgidsmonitor.exe
C:\Program Files\AVG\AVG9\avgemc.exe
C:\Program Files\AVG\AVG9\avgam.exe
C:\Program Files\AVG\AVG9\avgnsx.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\WINDOWS\regedit.exe
C:\Documents and Settings\Administrateur\Bureau\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
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 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
F2 - REG:system.ini: Shell=Explorer.exe SSVICHOSST.exe
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} - C:\PROGRA~1\FlashFXP\IEFlash.dll
O3 - Toolbar: AVG Security Toolbar - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
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: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [VirtualCloneDrive] "C:\Program Files\Elaborate Bytes\VirtualCloneDrive\VCDDaemon.exe" /s
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QT Lite\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [Synchronization Manager] %SystemRoot%\system32\mobsync.exe /logon
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKCU\..\Run: [WinMover] "C:\Program Files\WinMover\WinMover.exe" /q
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [Yahoo Messengger] C:\WINDOWS\system32\SSVICHOSST.exe
O4 - HKUS\S-1-5-20\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-20\..\RunOnce: [SweetRegistry] rundll32 advpack.dll,LaunchINFSection SweetReg.inf,PerUserStub (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [JkDefrag] rundll32 advpack.dll,LaunchINFSection JKDEFRAG.INF,RunOnce,1,N (User 'Default user')
O7 - HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System, DisableRegedit=1
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{63EEAE59-8999-4937-8F8C-E324FC8303FF}: NameServer = 208.67.222.222 208.67.220.220
O18 - Protocol: avgsecuritytoolbar - {F2DDE6B2-9684-4A55-86D4-E255E237B77C} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: AVG Security Toolbar Service - Unknown owner - C:\Program Files\AVG\AVG9\Toolbar\ToolbarBroker.exe
O23 - Service: AVG E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgemc.exe
O23 - Service: AVG WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: AVG Firewall (avgfws9) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgfws9.exe
O23 - Service: AVG9IDSAgent (AVGIDSAgent) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\Identity Protection\Agent\Bin\AVGIDSAgent.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe