Ordinateur trop long

Bonjour, j'ai un souci avec mon ordinateur , il est vraiment très long a chaque fois que j'ouvre une application Je soupçonne un virus .Pouvez vous m'aider ?

Je poste mon rapport Hijack
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:58:58, on 22/10/2009
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16890)
Boot mode: Normal

Running processes:
C:\windows\system32\taskeng.exe
C:\windows\system32\Dwm.exe
C:\windows\Explorer.EXE
C:\Program Files\Trend Micro\Internet Security\UfSeAgnt.exe
C:\Program Files\LogMeIn\x86\LogMeInSystray.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\Program Files\Intel\AMT\atchk.exe
C:\Program Files\PDF Complete\pdfsty.exe
C:\Windows\System32\hkcmd.exe
C:\Windows\System32\igfxpers.exe
C:\Program Files\HP\HP Software Update\hpwuSchd2.exe
C:\Program Files\Roxio\Drag-to-Disc\DrgToDsc.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\Common Files\LightScribe\LightScribeControlPanel.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Trend Micro\Internet Security\TMAS_OE\TMAS_OEMon.exe
C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files\HP\Digital Imaging\bin\hpqSTE08.exe
C:\Program Files\HP\Digital Imaging\bin\hpqbam08.exe
C:\windows\system32\wuauclt.exe
C:\windows\system32\igfxsrvc.exe
C:\windows\system32\conime.exe
C:\Program Files\Internet Explorer\IEUser.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\windows\system32\Macromed\Flash\FlashUtil10c.exe
C:\Users\VISTA\Desktop\HiJackThis.exe

O23 - Service: PDF Document Manager (pdfcDispatcher) - PDF Complete Inc - C:\Program Files\PDF Complete\pdfsvc.exe
O23 - Service: RoxMediaDB9 - Sonic Solutions - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxMediaDB9.exe
O23 - Service: Composant de commande centrale Trend Micro (SfCtlCom) - Trend Micro Inc. - C:\Program Files\Trend Micro\Internet Security\SfCtlCom.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files\Common Files\SureThing Shared\stllssvr.exe
O23 - Service: Trend Micro Unauthorized Change Prevention Service (TMBMServer) - Trend Micro Inc. - C:\Program Files\Trend Micro\BM\TMBMSRV.exe
O23 - Service: Trend Micro Proxy Service (tmproxy) - Trend Micro Inc. - C:\Program Files\Trend Micro\Internet Security\TmProxy.exe
O23 - Service: Intel(R) Active Management Technology User Notification Service (UNS) - Intel - C:\Program Files\Intel\AMT\UNS.exe