Symptomes Bizarres !

Bonjour à tous,

Bon alors voilà, j'ai acheté il y a 3 mois un Acer Aspire 5250. Windows 7 dessus.

Depuis plusieurs jours il y a des choses bizzares qui se passent !

- le démarrage est tt à fait normal jusqu'à l'écran pour le choix des utilisateurs. Là on clique sur une session, l'écran windows "bienvenue" apparait tout naturellement pdt quelques secondes et au moment ou le bureau devrait apparaitre, je me retrouve avec un écran noir et la souris blanche mobile.
J'ai testé d'attendre, la session est finalement apparue au bout d'un temps très long !
Quand je tente Ctrl+Alt+Suppr (au moment ou j'ai l'écran noir) il vient me parler de "préparation des options de sécurité", l'écran se fige et enfin il m'affiche l'écran censé apparaitre lorsqu'on fait Ctrl+Alt+Suppr !

Enfin, quand par miracla j'arrive à avoir ma session, les performances du PC m'apprennent que je suis à 100% d'utilissation de l'UC pratiquement en continu.

J'ai voulu faire une restauration du systemen mais manque de bol, aucuns points de resatau n'ont été crés depuis l'achat du PC donc action impossible.

Pouvez m'aider ?? Merci d'avance
Je laisse un rapport HijackThis au passage.



Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:19:47, on 02/12/2011
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v9.00 (9.00.8112.16421)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Norton AntiVirus\Engine\19.2.0.10\ccSvcHst.exe
C:\Program Files (x86)\Acer\clear.fi\MVP\.\Kernel\DMR\DMREngine.exe
C:\Program Files (x86)\EgisTec MyWinLockerSuite\x86\SuiteTray.exe
C:\Program Files (x86)\EgisTec IPS\PmmUpdate.exe
C:\Program Files (x86)\NTI\Acer Backup Manager\BackupManagerTray.exe
C:\Program Files (x86)\Launch Manager\LManager.exe
C:\Program Files (x86)\EgisTec IPS\EgisUpdate.exe
C:\Program Files (x86)\iTunes\iTunesHelper.exe
C:\Program Files (x86)\Acer\clear.fi\Movie\clear.fiMovieService.exe
C:\Program Files (x86)\Launch Manager\LMworker.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:\Users\VERO\Downloads\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://acer.msn.com
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://acer.msn.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://acer.msn.com
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\Main,Start Page = http://acer.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
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: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files (x86)\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Norton Vulnerability Protection - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files (x86)\Norton AntiVirus\Engine\19.2.0.10\IPS\IPSBHO.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: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Bing Bar Helper - {d2ce3e00-f94a-4740-988e-03dc2f38c34f} - "C:\Program Files (x86)\Microsoft\BingBar\BingExt.dll" (file missing)
O3 - Toolbar: Bing Bar - {8dcb7100-df86-4384-8842-8fa844297b3f} - "C:\Program Files (x86)\Microsoft\BingBar\BingExt.dll" (file missing)
O4 - HKLM\..\Run: [SuiteTray] "C:\Program Files (x86)\EgisTec MyWinLockerSuite\x86\SuiteTray.exe"
O4 - HKLM\..\Run: [EgisTecPMMUpdate] "C:\Program Files (x86)\EgisTec IPS\PmmUpdate.exe"
O4 - HKLM\..\Run: [EgisUpdate] "C:\Program Files (x86)\EgisTec IPS\EgisUpdate.exe" -d
O4 - HKLM\..\Run: [Norton Online Backup] C:\Program Files (x86)\Symantec\Norton Online Backup\NOBuClient.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [BackupManagerTray] "C:\Program Files (x86)\NTI\Acer Backup Manager\BackupManagerTray.exe" -h -k
O4 - HKLM\..\Run: [LManager] C:\Program Files (x86)\Launch Manager\LManager.exe
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files (x86)\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [ArcadeMovieService] "C:\Program Files (x86)\Acer\clear.fi\Movie\clear.fiMovieService.exe"
O4 - HKLM\..\Run: [APSDaemon] "C:\Program Files (x86)\Common Files\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files (x86)\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [Google Update] "C:\Users\ROLBY\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files (x86)\DAEMON Tools Lite\DTLite.exe" -autorun
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 - HKUS\S-1-5-21-261277071-2436758449-415052283-1004\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun (User 'VERO')
O4 - HKUS\S-1-5-18\..\RunOnce: [IsMyWinLockerReboot] msiexec.exe /qn /x{voidguid} (User 'Système')
O4 - HKUS\.DEFAULT\..\RunOnce: [IsMyWinLockerReboot] msiexec.exe /qn /x{voidguid} (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~2\MICROS~4\Office12\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: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra 'Tools' menuitem: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~4\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files (x86)\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files (x86)\Spybot - Search & Destroy\SDHelper.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: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\Windows\system32\atiesrxx.exe (file missing)
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: Dritek WMI Service (DsiWMIService) - Dritek System Inc. - C:\Program Files (x86)\Launch Manager\dsiwmis.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: EgisTec Ticket Service - Egis Technology Inc. - C:\Program Files (x86)\Common Files\EgisTec\Services\EgisTicketService.exe
O23 - Service: Acer ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\Acer\Acer ePower Management\ePowerSvc.exe
O23 - Service: EPSON V5 Service4(01) (EPSON_EB_RPCV4_01) - SEIKO EPSON CORPORATION - C:\ProgramData\EPSON\EPW!3 SSRP\E_S40STB.EXE
O23 - Service: EPSON V3 Service4(01) (EPSON_PM_RPCV4_01) - SEIKO EPSON CORPORATION - C:\ProgramData\EPSON\EPW!3 SSRP\E_S40RPB.EXE
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: GREGService - Acer Incorporated - C:\Program Files (x86)\Acer\Registration\GREGsvc.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Live Updater Service - Acer Incorporated - C:\Program Files\Acer\Acer Updater\UpdaterService.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: Norton AntiVirus (NAV) - Symantec Corporation - C:\Program Files (x86)\Norton AntiVirus\Engine\19.2.0.10\ccSvcHst.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Norton Online Backup (NOBU) - Symantec Corporation - C:\Program Files (x86)\Symantec\Norton Online Backup\NOBuAgent.exe
O23 - Service: NTI IScheduleSvc - NTI Corporation - C:\Program Files (x86)\NTI\Acer Backup Manager\IScheduleSvc.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: @%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: @%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)