Sos Hijackthis + lenteur

Bonjour,
cela fait quelques jours que j'ai des lenteurs assez importantes et jusqu'à présent je n'ai trouvé aucune solution sur les forums.

Voici mon soucis, comme je l'ai dit j'ai des lenteurs avec mon pc mais bizarrement que quand je suis sur le bureau quand je suis sur Battlefield Bc2 aucune lenteur, rien tout va pour le mieux. J'ai aussi remarqué que quand je vais sur le gestionnaire des taches puis dans l'onglet performances, il est indiqué que ma mémoire physique disponible est égale à 0 Mo. Mon Ping est aussi depuis quelque temps très élevé.

(ci joint un screenshot de mon gestionaire des taches : [URL=https://www.imagup.com][IMG]http://ups.imagup.com/09/1270066934.PNG[/IMG][/URL])

J'ai bien sur avant de poster ce post mis à jour ma machine, réalisé une analyse anti-virus avec Nod32 et une analyse anti-spyware avec ad-aware mais rien n'a été trouvé.

J'ai donc lancé un scan hijackthis et étant donné que je suis incapable de le comprendre je sollicite votre précieuse aide :)
le voici :


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 08:48:18, on 31/03/2010
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v8.00 (8.00.6001.18882)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\ESET\ESET Smart Security\egui.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Windows\System32\rundll32.exe
C:\PROGRA~1\COMMON~1\France Telecom\Shared Modules\AlertModule\0\AlertModule.exe
C:\Program Files\Dell Support Center\bin\sprtcmd.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Steam\steam.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Windows\ehome\ehtray.exe
C:\Program Files\Common Files\Nikon\Monitor\NkMonitor.exe
C:\Users\ERWAN\AppData\Roaming\Microsoft\Notification de cadeaux MSN\lsnfier.exe
C:\Windows\System32\mobsync.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\OrangeHSS\systray\systrayapp.exe
C:\Program Files\Windows Live\Contacts\wlcomm.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Windows\system32\wuauclt.exe
C:\Windows\System32\wscript.exe
C:\Users\ERWAN\Downloads\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\Program Files\OrangeHSS\SearchURLHook\SearchPageURL.dll
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: flashget2 urlcatch - {1F364306-AA45-47B5-9F9D-39A8B94E7EF1} - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\bhoCATCH.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\ProgramData\Real\RealPlayer\BrowserRecordPlugin\IE\rpbrowserrecordplugin.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Veoh Video Compass - {52836EB0-631A-47B1-94A6-61F9D9112DAE} - C:\Program Files\Veoh Networks\Veoh Video Compass\SearchRecsPlugin.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [Ad-Watch] C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
O4 - HKLM\..\Run: [ORAHSSSessionManager] "C:\Program Files\OrangeHSS\SessionManager\SessionManager.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [egui] "C:\Program Files\ESET\ESET Smart Security\egui.exe" /hide /waitservice
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
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: [dellsupportcenter] "C:\Program Files\Dell Support Center\bin\sprtcmd.exe" /P dellsupportcenter
O4 - HKCU\..\Run: [Steam] "c:\program files\steam\steam.exe" -silent
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O8 - Extra context menu item: &Download All by FlashGet - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\Bhoall.htm
O8 - Extra context menu item: &Download by FlashGet - C:\Program Files\FlashGet Network\FlashGet universal\ComDlls\Bholink.htm
O9 - Extra button: (no name) - {5067A26B-1337-4436-8AFE-EE169C2DA79F} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra 'Tools' menuitem: Skype add-on for Internet Explorer - {5067A26B-1337-4436-8AFE-EE169C2DA79F} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O13 - Gopher Prefix:
O16 - DPF: {C1F8FC10-E5DB-4112-9DBF-6C3FF728D4E3} (DellSystemLite.Scanner) - http://support.dell.com/systemprofiler/DellSystemLite.CAB
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: ESET HTTP Server (EhttpSrv) - ESET - C:\Program Files\ESET\ESET Smart Security\EHttpSrv.exe
O23 - Service: ESET Service (ekrn) - ESET - C:\Program Files\ESET\ESET Smart Security\ekrn.exe
O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom SA - C:\PROGRA~1\COMMON~1\France Telecom\Shared Modules\FTRTSVC\0\FTRTSVC.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - C:\Program Files\ma-config.com\maconfservice.exe
O23 - Service: Performance Service (nTuneService) - NVIDIA - C:\Program Files\NVIDIA Corporation\nTune\nTuneService.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: PnkBstrB - Unknown owner - C:\Windows\system32\PnkBstrB.exe
O23 - Service: SupportSoft Sprocket Service (DellSupportCenter) (sprtsvc_DellSupportCenter) - SupportSoft, Inc. - C:\Program Files\Dell Support Center\bin\sprtsvc.exe
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files\Common Files\Steam\SteamService.exe
O23 - Service: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\3D Vision\nvSCPAPISvr.exe
O23 - Service: Update Center Service (UpdateCenterService) - NVIDIA - C:\Program Files\NVIDIA Corporation\System Update\UpdateCenterService.exe