Que dois-je enlever qui est inutile

Bonjour
J'ai utilisé HiJackThis pour la première fois et je vous envoie le Journal, pourriez-vous m'indiquer ce que je dois garder et ce qui est inutile. J'utilise windowa xp familial
Merci
R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://nkvd.us/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.myexexex.com/searchbar.php
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.myexexex.com/search.php?said=spage&qq=%s
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = file://c:/spad/start.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://nnsearch.biz/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://nkvd.us/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.myexexex.com/search.php?said=spage
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.myexexex.com/search.php?said=spage
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = file://c:/spad/start.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.myexexex.com/searchbar.php
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.myexexex.com/search.php?said=spage&qq=%s
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = file://c:/spad/start.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.myexexex.com/search.php?said=spage&qq=%s
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.myexexex.com/search.php?said=spage
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.myexexex.com/search.php?said=spage
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = http://nnsearch.biz/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = http://nnsearch.biz/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R1 - HKCU\Software\Microsoft\Internet Explorer,Search = http://nkvd.us/
R1 - HKLM\Software\Microsoft\Internet Explorer,Search = http://nkvd.us/
R3 - Default URLSearchHook is missing
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {4E7BD74F-2B8D-469E-92EA-EC65A294AE31} - C:\WINDOWS\DOWNLO~1\ALTAVI~1.DLL
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: boîte à outils hp - {B2847E28-5D7D-4DEB-8B67-05D28BCF79F5} - C:\HP\EXPLOREBAR\HPTOOLKT.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: PowerSearch - {4E7BD74F-2B8D-469E-C6ED-ED6AA787AD2D} - C:\PROGRA~1\POWERS~1\Toolbar\pwrsfrst.dll (file missing)
O3 - Toolbar: AltaVista Toolbar - {4E7BD74F-2B8D-469E-92EA-EC65A294AE31} - C:\WINDOWS\DOWNLO~1\ALTAVI~1.DLL
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [hp Silent Service] C:\Windows\system32\HpSrvUI.exe
O4 - HKLM\..\Run: [hpScannerFirstBoot] c:\hp\drivers\scannercamera\scannerfb.exe
O4 - HKLM\..\Run: [StorageGuard] "C:\Program Files\VERITAS Software\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Program Files\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKLM\..\Run: [CamMonitor] C:\Program Files\Hewlett-Packard\Digital Imaging\Unload\hpqcmon.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [KBD] C:\HP\KBD\KBD.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [ashMaiSv] C:\PROGRA~1\ALWILS~1\Avast4\ashmaisv.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\MSMSGS.EXE" /background
O4 - HKCU\..\Run: [Washer] C:\Program Files\Washer\washer.exe /0
O4 - Startup: Démarrage d'Office.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O4 - Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Global Startup: hp center.lnk = C:\Program Files\hp center\137903\Program\BackWeb-137903.exe
O4 - Global Startup: HPAiODevice(hp psc 700 series) - 1.lnk = C:\Program Files\Hewlett-Packard\AiO\hp psc 700 series\Bin\hpobrt07.exe
O4 - Global Startup: KODAK Software Updater.lnk = C:\Program Files\Kodak\KODAK Software Updater\7288971\Program\backWeb-7288971.exe
O4 - Global Startup: Logiciel Kodak EasyShare.lnk = C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Add animation to IncrediMail Style Box - C:\PROGRA~1\INCRED~1\bin\resources\WebMenuImg.htm
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: AltaVista Search - file://C:\Program Files\ALTAVISTA Toolbar\Cache\SelectedContextSearch.htm
O8 - Extra context menu item: Backward &Links - res://c:\program files\google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Cac&hed Snapshot of Page - res://c:\program files\google\GoogleToolbar1.dll/cmcache.html
O8 - Extra context menu item: Recherche AltaVista - file://C:\Program Files\Dynamic Toolbar\ALTAVISTA\Cache\SelectedContextSearch.htm
O8 - Extra context menu item: Si&milar Pages - res://c:\program files\google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Traduction - file://C:\Program Files\Dynamic Toolbar\ALTAVISTA\Cache\SelectedContextTranslation.htm
O8 - Extra context menu item: Translate - file://C:\Program Files\ALTAVISTA Toolbar\Cache\SelectedContextTranslation.htm
O9 - Extra button: Microsoft® JavaScript® Console (HKLM)
O9 - Extra 'Tools' menuitem: JavaScript Console (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Messenger (HKLM)
O9 - Extra button: Microsoft® JavaScript® Console (HKCU)
O9 - Extra 'Tools' menuitem: JavaScript Console (HKCU)
O13 - DefaultPrefix:
O13 - WWW Prefix:
O13 - Home Prefix: http://www.nkvd.us/
O13 - Mosaic Prefix: http://www.nkvd.us/
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {4E7BD74F-2B8D-469E-92EA-EC65A294AE31} (AltaVista Toolbar) - http://toolbar.altavista.com/app/toolbar/cfg/altavista.cab?r=YXQPKR
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://207.188.7.150/1069501bdd052646f618/netzip/RdxIE601_fr.cab
O16 - DPF: {A3009861-330C-4E10-822B-39D16EC8829D} (CRAVOnline Object) - http://www.ravantivirus.com/scan/ravonline.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {D32C3BAD-5213-49BD-A7D5-E6DE6C0D8249} (CRAVOnline Object) - http://www.ravantivirus.com/scan/ravonline.cab
O16 - DPF: {F5D98C43-DB16-11CF-8ECA-0000C0FD59C7} (ActiveCGM Control) - http://infolot-cgm.mrnfp.gouv.qc.ca/ACGM/acgm.cab