Aide pour Rapport HijackThis

Bonjour,
Apres avoir scanner mon pc avec HijackThis, j'ai obtenu ce rapport ci dessous mais je n'y comprend rien. Pouvez vous m'aider svp?
Running processes:
C:\Users\Owner\AppData\Local\Google\Update\GoogleUpdate.exe
C:\Users\Owner\AppData\Roaming\cacaoweb\cacaoweb.exe
C:\Program Files (x86)\Skype\Phone\Skype.exe
C:\Program Files (x86)\Dell Webcam\Dell Webcam Central\WebcamDell2.exe
C:\Program Files (x86)\OpenOffice.org 3\program\soffice.exe
C:\Program Files (x86)\Roxio\OEM\Roxio Burn\RoxioBurnLauncher.exe
C:\Program Files (x86)\OpenOffice.org 3\program\soffice.bin
C:\Program Files (x86)\My Connection\BackgroundService\ModemListener.exe
C:\Program Files\AVAST Software\Avast\AvastUI.exe
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
C:\Program Files (x86)\Dell Stage\Dell Stage\stage_primary.exe
C:\Program Files (x86)\Dell Stage\Dell Stage\stage_secondary.exe
C:\Users\Owner\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\XGUJ5HGM\HijackThis.exe
C:\Users\Owner\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\TIQB2TG1\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = www.google.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/
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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe,
O2 - BHO: (no name) - MRI_DISABLED - (no file)
O2 - BHO: (no name) - {4d02e7e6-5930-4b51-b9b0-9f21b3789401} - (no file)
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~2\MICROS~1\Office14\GROOVEEX.DLL
O2 - BHO: avast! Online Security - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: (no name) - {978C7B0C-1709-4f9e-AE1C-95DC75079894} - (no file)
O2 - BHO: URLRedirectionBHO - {B4F3A835-0E21-4959-BA22-42B3008E02FF} - C:\PROGRA~2\MICROS~1\Office14\URLREDIR.DLL
O3 - Toolbar: (no name) - {9a95b751-bf3e-4ea8-a938-2d4d84cd4964} - (no file)
O3 - Toolbar: (no name) - {98889811-442D-49dd-99D7-DC866BE87DBC} - (no file)
O3 - Toolbar: (no name) - {ae07101b-46d4-4a98-af68-0333ea26e113} - (no file)
O4 - HKLM\..\Run: [Dell Webcam Central] "C:\Program Files (x86)\Dell Webcam\Dell Webcam Central\WebcamDell2.exe" /mode2
O4 - HKLM\..\Run: [Dell Registration] C:\Program Files (x86)\System Registration\prodreg.exe /boot
O4 - HKLM\..\Run: [Desktop Disc Tool] "C:\Program Files (x86)\Roxio\OEM\Roxio Burn\RoxioBurnLauncher.exe"
O4 - HKLM\..\Run: C:\Program Files (x86)\My Connection\BackgroundService\ModemListener.exe start
O4 - HKLM\..\Run: [AccuWeatherWidget] "C:\Program Files (x86)\Dell Stage\Dell Stage\AccuWeather\accuweather.exe" "C:\Program Files (x86)\Dell Stage\Dell Stage\AccuWeather\start.umj" --startup
O4 - HKLM\..\Run: [AvastUI.exe] "C:\Program Files\AVAST Software\Avast\AvastUI.exe" /nogui
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [RoxWatchTray] "C:\Program Files (x86)\Common Files\Roxio Shared\OEM\12.0\SharedCOM\RoxWatchTray12OEM.exe"
O4 - HKCU\..\Run: [Google Update] "C:\Users\Owner\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [OfficeSyncProcess] "C:\Program Files\Microsoft Office\Office14\MSOSYNC.EXE"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [cacaoweb] "C:\Users\Owner\AppData\Roaming\cacaoweb\cacaoweb.exe" -noplayer
O4 - HKCU\..\Run: [DellSystemDetect] C:\Users\Owner\AppData\Local\Apps\2.0\QJ81DGT3.GK2\ROV6V7HQ.85O\dell..tion_0f612f649c4a10af_0005.0006_f9e15713f5aac8ac\DellSystemDetect.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /minimized /regrun
O4 - .DEFAULT User Startup: Best Buy pc app.lnk = C:\ProgramData\Best Buy pc app\ClickOnceSetup.exe (User 'Default user')
O4 - Startup: OpenOffice.org 3.3.lnk = C:\Program Files (x86)\OpenOffice.org 3\program\quickstart.exe
O8 - Extra context menu item: &Envoyer à OneNote - res://C:\PROGRA~1\MICROS~2\Office14\ONBttnIE.dll/105
O8 - Extra context menu item: Append Link Target to Existing PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Append to Existing PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert Link Target to Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office14\EXCEL.EXE/3000
O9 - Extra button: @C:\Program Files (x86)\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1004 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: @C:\Program Files (x86)\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1003 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIE.dll
O9 - Extra button: Notes &liées OneNote - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIELinkedNotes.dll
O9 - Extra 'Tools' menuitem: Notes &liées OneNote - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIELinkedNotes.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O15 - Trusted Zone: *.beamrise.com
O15 - Trusted Zone: *.dell.com
O15 - Trusted Zone: http://www.samsungsetup.com/TS/Main/TS_SamlCheck.aspx
O16 - DPF: {CF84DAC5-A4F5-419E-A0BA-C01FFD71112F} (SysInfo Class) - http://content.systemrequirementslab.com/bin/srldetect_intel_4.5.22.0.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.DLL
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
O18 - Filter hijack: text/xml - {807573E5-5146-11D5-A672-00B0D022E945} - C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL
O20 - AppInit_DLLs: c:\progra~2\optimi~1\optpro~1.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Andrea RT Filters Service (AERTFilters) - Andrea Electronics Corporation - C:\Program Files\Realtek\Audio\HDA\AERTSr64.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\AVAST Software\Avast\AvastSvc.exe
O23 - Service: Bluetooth Media Service - Intel Corporation - C:\Program Files (x86)\Intel\Bluetooth\mediasrv.exe
O23 - Service: Bluetooth OBEX Service - Intel Corporation - C:\Program Files (x86)\Intel\Bluetooth\obexsrv.exe
O23 - Service: Cellcom_Guinea Silverstone Modem Device Helper - Unknown owner - C:\Program Files (x86)\My Connection\BackgroundService\ServiceManager.exe
O23 - Service: Intel(R) Content Protection HECI Service (cphs) - Intel Corporation - C:\Windows\SysWow64\IntelCpHeciSvc.exe
O23 - Service: Intel® PROSet/Wireless WiMAX Red Bend Device Management Service (DMAgent) - Red Bend Ltd. - C:\Program Files\Intel\WiMAX\Bin\DMAgent.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Program Files\Intel\WiFi\bin\EvtEng.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Service Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Service Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Intel(R) Integrated Clock Controller Service - Intel(R) ICCS (ICCS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Integrated Clock Controller Service\ICCProxy.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\Windows\system32\IEEtwCollector.exe (file missing)
O23 - Service: Canon Inkjet Printer/Scanner/Fax Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Program Files (x86)\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Intel(R) Management and Security Application Local Management Service (LMS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\LMS\LMS.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: Wireless PAN DHCP Server (MyWiFiDHCPDNS) - Unknown owner - C:\Program Files\Intel\WiFi\bin\PanDhcpDns.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: RoxMediaDB12OEM - Sonic Solutions - C:\Program Files (x86)\Common Files\Roxio Shared\OEM\12.0\SharedCOM\RoxMediaDB12OEM.exe
O23 - Service: Roxio Hard Drive Watcher 12 (RoxWatch12) - Sonic Solutions - C:\Program Files (x86)\Common Files\Roxio Shared\OEM\12.0\SharedCOM\RoxWatch12OEM.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: Realtek Audio Service (RtkAudioService) - Realtek Semiconductor - C:\Program Files\Realtek\Audio\HDA\RtkAudioService64.exe
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: SoftThinks Agent Service (SftService) - SoftThinks SAS - C:\Program Files (x86)\Dell DataSafe Local Backup\sftservice.EXE
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files (x86)\Common Files\SureThing Shared\stllssvr.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Intel(R) Management and Security Application User Notification Service (UNS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\UNS\UNS.exe
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: Intel® PROSet/Wireless WiMAX Service (WiMAXAppSrv) - Intel(R) Corporation - C:\Program Files\Intel\WiMAX\Bin\AppSrv.exe
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
O23 - Service: Intel(R) PROSet/Wireless Zero Configuration Service (ZeroConfigService) - Intel® Corporation - C:\Program Files\Intel\WiFi\bin\ZeroConfigService.exe

MERCI.