Mon PC est trsè lent au démarrage

Bonjour,
mon PC rame depuis quelques mois. j'ai lancé Hijackthis et voici ci dessous le résultat.
Mon PC a un processor Pentium D CPU 2.80 HHtz avec 512 de RAM , et une carte Radeon 9250

J'utilise Avast version familale v 4.8 et Windows Defender; tous les 2 étant mis à jopur quotidiennemnet.
je n'ai rien vu pouir l'instant de choquant. Si un expert pouvait me donner des conseils , je serai très reconnaissant
Merci d'avance
Cordialement


Logfile of random's system information tool 1.06 (written by random/random)
Run by Propriétaire at 2010-02-25 19:47:07
Microsoft Windows XP Édition familiale Service Pack 3
System drive I: has 13 GB (17%) free of 76 GB
Total RAM: 511 MB (13% free)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:47:39, on 25/02/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
I:\WINDOWS\System32\smss.exe
I:\WINDOWS\system32\winlogon.exe
I:\WINDOWS\system32\services.exe
I:\WINDOWS\system32\lsass.exe
I:\WINDOWS\system32\Ati2evxx.exe
I:\WINDOWS\system32\svchost.exe
I:\Program Files\Windows Defender\MsMpEng.exe
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
I:\Program Files\Alwil Software\Avast4\ashServ.exe
I:\WINDOWS\system32\Ati2evxx.exe
I:\WINDOWS\Explorer.EXE
I:\Program Files\Windows Defender\MSASCui.exe
I:\WINDOWS\RTHDCPL.EXE
I:\Program Files\ATI Technologies\ATI.ACE\cli.exe
I:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
I:\Program Files\Java\jre6\bin\jusched.exe
I:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
I:\Program Files\Messenger\msmsgs.exe
I:\WINDOWS\system32\ctfmon.exe
I:\Program Files\Windows Live\Messenger\msnmsgr.exe
I:\WINDOWS\system32\spoolsv.exe
I:\Program Files\Windows Desktop Search\WindowsSearch.exe
I:\Program Files\Internet Explorer\iexplore.exe
I:\Program Files\Java\jre6\bin\jqs.exe
I:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
I:\Program Files\lotus\notes\ntmulti.exe
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Yahoo!\SoftwareUpdate\YahooAUService.exe
I:\WINDOWS\system32\SearchIndexer.exe
I:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
I:\Program Files\Internet Explorer\iexplore.exe
I:\Program Files\Alwil Software\Avast4\ashWebSv.exe
I:\WINDOWS\system32\taskmgr.exe
I:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
i:\WINDOWS\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
I:\Program Files\Internet Explorer\iexplore.exe
I:\WINDOWS\system32\SearchProtocolHost.exe
I:\WINDOWS\system32\SearchProtocolHost.exe
I:\Documents and Settings\Propriétaire\Mes documents\RSIT.exe
I:\Program Files\trend micro\Propriétaire.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://fr.yahoo.com/?fr=fp-yie8
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
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.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://fr.rd.yahoo.com/customize/ie/defaults/su/msgr8/*https://fr.search.yahoo.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Windows Internet Explorer fourni par Yahoo!
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - I:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - I:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - I:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - I:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - I:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [Windows Defender] "I:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [ATICCC] "I:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime
O4 - HKLM\..\Run: [avast!] I:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "I:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [Adobe ARM] "I:\Program Files\Fichiers communs\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [QuickTime Task] "I:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "I:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [YSearchProtection] "I:\Program Files\Yahoo!\Search Protection\SearchProtection.exe"
O4 - HKCU\..\Run: [MSMSGS] "I:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] I:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "I:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [Search Protection] I:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - S-1-5-18 Startup: Internet Explorer.lnk = I:\Program Files\Internet Explorer\iexplore.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: Internet Explorer.lnk = I:\Program Files\Internet Explorer\iexplore.exe (User 'Default user')
O4 - Startup: Internet Explorer.lnk = I:\Program Files\Internet Explorer\iexplore.exe
O4 - Global Startup: Barre d'état système d'ATI CATALYST.lnk = I:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
O4 - Global Startup: Microsoft Office.lnk = I:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Windows Desktop Search.lnk = I:\Program Files\Windows Desktop Search\WindowsSearch.exe
O9 - Extra button: (no name) - {53F6FCCD-9E22-4d71-86EA-6E43136192AB} - (no file)
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - I:\WINDOWS\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - I:\WINDOWS\bdoscandel.exe
O9 - Extra button: (no name) - {925DAB62-F9AC-4221-806A-057BFB1014AA} - (no file)
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - I:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - I:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - I:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - I:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://appldnld.apple.com/QuickTime/qtactivex/qtplugin.cab
O16 - DPF: {05CA9FB0-3E3E-4B36-BF41-0E3A5CAA8CD8} (Office Genuine Advantage Validation Tool) - http://download.microsoft.com/download/C/B/F/CBF23A2C-3E55-4664-BC5C-762780D79BA0/OGAControl.cab
O16 - DPF: {1EF9F042-C2EB-4293-8213-474CAEEF531D} (TmHcmsX Control) - http://www.trendsecure.com/framework/control/en-US/activex/TmHcmsX.CAB
O16 - DPF: {215B8138-A3CF-44C5-803F-8226143CFC0A} (Trend Micro ActiveX Scan Agent 6.6) - http://eu-housecall.trendmicro-europe.com/housecall/applet/html/native/x86/win32/activex/hcImpl.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - I:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {3BFFE033-BF43-11D5-A271-00A024A51325} (iNotes6 Class) - https://fedhub.airfrance.fr/idp/eyJ2c2lkIjoidXJuOmlkcDpwcmQ6YWZyOnBmOmRtemk6c3Ryb25nIn0/SSO.saml2?SAMLRequest=lZLNbsIwEITvPEXkO0lwIAULIlG4gFqhhqo%2FXCpjb4RL7KReR4U%2BfRMatRxopfrgw2o88%2B3I42nldiaFtwrQefP6UoY7VZgJ2TlXIguCDOSu2vpc2cxyI8DPbKBkGcBxSQXN94vXQsmnZbXS%2BV7My3eh7%2BLnx81xZa71SqcO9D4WUXrc0oFZmDBYr1c%2Bcp1T4i3mE%2FIyBOjJiEcDGfNhGEVS0Hi4HUSjrA%2BUj%2Fochle1FLGChUHHjZsQGtKwG9JuGN%2FTkNEe68cb4j2AxRM69UPiHXRucEIqa1jBUSEzXAMyJ9h6envDag0rbeEKUeQk6Xj1GRvssVOQ%2FXrN6sHfDhwRbNMXSRoZlrWnZDyzDDWT%2BkONgx%2FTNqVtG%2BSp%2B1lhHBycNyt0ya3Chl8ro3SlW6wWjbJz%2FSyvo1PIvkHpv0B%2FlQkmGud6nK6nDfzl2HaV4OIuSWccnP%2Br5BM%3D&RelayState=03fbb114cb08d652c23259c3ae81f618bbca30bd&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=MCrtey0bctNnk9nVNgb8xCOiJGANIHMz%2BwndHfZM%2BYcgj95XgmSo2r3nO4TwKbgn53209GYqbY%2BiYZX%2Bgj%2FxZ2zdwWzA6sA4ZBtgdqYqnSUNFjl1jU4JTmIvsnelntKd3Qnq4WcfQJ8huuDdxFlZYvjPhINMO0H7cwZBAQ7kI%2B6IIzJkKiYiVo25Y3oUA%2BmGZAPE9Sv8dBQmngy9r0FVhl0wWwI32adaV3k9J2I%2BoZCnT1ZcNu50slK4qO1kmIER4Zzi5f
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx2.hotmail.com/mail/w2/pr02/resources/MSNPUpld.cab
O16 - DPF: {5AE58FCF-6F6A-49B2-B064-02492C66E3F4} (MUCatalogWebControl Class) - http://www.catalog.update.microsoft.com/ClientControl/en/x86/MuCatalogWebControl.cab?1207004692906
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.zebulon.fr/scan8/oscan8.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - https://www.trendmicro.com/en_us/forHome/products/housecall.html
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} (HardwareDetection Control) - https://www.touslesdrivers.com/index.php?v_page=29
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - I:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - I:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - I:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - I:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - I:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Service Google Update (gupdate) (gupdate) - Google Inc. - I:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - I:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Multi-user Cleanup Service - IBM Corp - I:\Program Files\lotus\notes\ntmulti.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies - I:\Program Files\WinPcap\rpcapd.exe
O23 - Service: Windows Live Setup Service (WLSetupSvc) - Unknown owner - I:\Program Files\Windows Live\installer\WLSetupSvc.exe (file missing)
O23 - Service: Yahoo! Updater (YahooAUService) - Yahoo! Inc. - I:\Program Files\Yahoo!\SoftwareUpdate\YahooAUService.exe