Pc portable très très lent au démarrage

Bonjour,

Je voudrais savoir si la lenteur énorme de mon ordinateur au démarrage provient d'un virus ou d'autre choses? que dois-je faire?
Je vous poste un rapport hijackthis si vous pouviez me donner un coup de main.

Merci d'avance

Aldouchka

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:22:09, on 29/11/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\carpserv.exe
C:\PROGRA~1\HPQ\ONE-TO~1\OneTouch.EXE
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Nikon\PictureProject\NkbMonitor.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\CAPPSWK.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\a-squared Free\a2service.exe
C:\WINDOWS\system32\HPConfig.exe
C:\Program Files\HPQ\Notebook Utilities\HPWirelessMgr.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\system32\CAPRPCSK.EXE
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\CAPPSWK.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Outlook Express\msimn.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Documents and Settings\Alde Lupasco-Massot\Bureau\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.free.fr/freebox/index.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://search.presario.net/...
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.presario.net/...
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.presario.net/...
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer - fourni par Tele2
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Program Files\Canon\Easy-WebPrint\Toolband.dll
O3 - Toolbar: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [Watch] C:\PROGRA~1\Minitel\Watch.exe
O4 - HKLM\..\Run: [PreloadApp] c:\hp\drivers\printers\photosmart\hphprld.exe c:\hp\drivers\printers\photosmart\setup.exe -d
O4 - HKLM\..\Run: [srmclean] C:\Cpqs\Scom\srmclean.exe
O4 - HKLM\..\Run: [Display Settings] C:\Program Files\HPQ\Notebook Utilities\hptasks.exe /s
O4 - HKLM\..\Run: [QT4HPOT] C:\PROGRA~1\HPQ\ONE-TO~1\OneTouch.EXE
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Cpqset] C:\Program Files\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [CAPON] C:\WINDOWS\System32\Spool\Drivers\w32x86\3\CAPONN.EXE
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - Global Startup: Fenêtre d'état Canon LBP-810.LNK = C:\WINDOWS\system32\spool\drivers\w32x86\3\CAPPSWK.EXE
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: NkbMonitor.exe.lnk = C:\Program Files\Nikon\PictureProject\NkbMonitor.exe
O9 - Extra button: Sites Perso - {06FE5D05-8F11-11d2-804F-00105A133818} - http://compaqnet.ifrance.com/heberg/accueil (file missing)
O9 - Extra 'Tools' menuitem: Compaq France - {06FE5D05-8F11-11d2-804F-00105A133818} - http://compaqnet.ifrance.com/heberg/accueil (file missing)
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=https://www.free.fr/freebox/index.html
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {511F9316-771B-4953-A268-1C36DA667FE9} - http://ip.sponsoradulto.com/cab/3/fr/SysWebTelecomInt.cab
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: HP Configuration Interface Service (HPConfig) - Hewlett-Packard - C:\WINDOWS\system32\HPConfig.exe
O23 - Service: HPWirelessMgr - Hewlett-Packard Co. - C:\Program Files\HPQ\Notebook Utilities\HPWirelessMgr.exe