Ordi ou connexion qui rame?je suis perdue!

à mon avis, ton ordinateur manque cruellement de RAM...

voici le rapport HijackThis:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:41:26, on 25/06/2012
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v9.00 (9.00.8112.16446)
Boot mode: Normal

Running processes:
C:\Program Files\TRENDnet\TEW-648UB\WlanCU.exe
C:\Program Files (x86)\Micro Application\LauncherMA.exe
C:\Program Files (x86)\eMachines\Hotkey Utility\HotkeyUtility.exe
C:\Program Files (x86)\Avira\AntiVir Desktop\avgnt.exe
C:\Program Files (x86)\SweetIM\Messenger\SweetIM.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\QuickTime\QTTask.exe
C:\Program Files (x86)\OfferBox\offerbox.exe
C:\Program Files (x86)\OfferBox\OfferBoxHTTPProxy.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Mozilla Firefox\plugin-container.exe
C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerPlugin_11_3_300_262.exe
C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerPlugin_11_3_300_262.exe
C:\Users\emiliensoizic\Downloads\hijackthis_telechargement_01net.exe
C:\Users\EMILIE~1\AppData\Local\Temp\01net\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://go.microsoft.com/fwlink/?linkid=54896
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.babylon.com/?affID=111804&tt=060612_6_&babsrc=HP_ss&mntrId=7cd932170000000000000014d1e9a3dd
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://fr.msn.com/
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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=127.0.0.1:56847
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe,
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Babylon toolbar helper - {2EECD738-5844-4a99-B4B6-146BF802613B} - C:\Program Files (x86)\BabylonToolbar\BabylonToolbar\1.5.3.17\bh\BabylonToolbar.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre6\bin\ssv.dll
O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live ID - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: DealPly - {A6174F27-1FFF-E1D6-A93F-BA48AD5DD448} - C:\Program Files (x86)\DealPly\DealPlyIE.dll
O2 - BHO: Bing Bar Helper - {d2ce3e00-f94a-4740-988e-03dc2f38c34f} - "C:\Program Files (x86)\Microsoft\BingBar\BingExt.dll" (file missing)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Bing Bar - {8dcb7100-df86-4384-8842-8fa844297b3f} - "C:\Program Files (x86)\Microsoft\BingBar\BingExt.dll" (file missing)
O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - (no file)
O3 - Toolbar: Babylon Toolbar - {98889811-442D-49dd-99D7-DC866BE87DBC} - C:\Program Files (x86)\BabylonToolbar\BabylonToolbar\1.5.3.17\BabylonToolbarTlbr.dll
O4 - HKLM\..\Run: [Hotkey Utility] C:\Program Files (x86)\eMachines\Hotkey Utility\HotkeyUtility.exe
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [APSDaemon] "C:\Program Files (x86)\Common Files\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [avgnt] "C:\Program Files (x86)\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [SweetIM] C:\Program Files (x86)\SweetIM\Messenger\SweetIM.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [offerbox] C:\Program Files (x86)\OfferBox\OfferBox.exe
O4 - HKCU\..\Run: [msnmsgr] ~"C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [Driver Updater] "C:\Program Files (x86)\Carambis\Driver Updater\dupdater.exe" /minimized
O4 - HKCU\..\Run: [ccleaner] "C:\Program Files\CCleaner\CCleaner64.exe" /AUTO
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVICE RÉSEAU')
O4 - Startup: Adobe Gamma.lnk = C:\Program Files (x86)\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Startup: Lanceur.lnk = C:\Program Files (x86)\Micro Application\LauncherMA.exe
O4 - Global Startup: Wireless Configuration Utility.lnk = C:\Program Files\TRENDnet\TEW-648UB\WlanCU.exe
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
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
O13 - Gopher Prefix:
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files (x86)\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
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: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: Avira Planificateur (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Protection temps réel (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
O23 - Service: GRegService (Greg_Service) - Acer Incorporated - C:\Program Files (x86)\eMachines\Registration\GregHSRW.exe
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: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: Nero BackItUp Scheduler 4.0 - Nero AG - C:\Program Files (x86)\Common Files\Nero\Nero BackItUp 4\NBService.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: OfferBox update service - Aedge Performance BCN SL - C:\Program Files (x86)\OfferBox\OfferBoxUpdateService.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
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: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Updater Service - Acer Group - C:\Program Files\eMachines\eMachines Updater\UpdaterService.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: WlanWpsSvc - Unknown owner - C:\Program Files\TRENDnet\TEW-648UB\WlanWpsSvc.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)