PC lent et fenêtre pour des antivirus

Bonsoir,

Mon PC est de plus en plus lent et j'ai des tas de fenêtre qui s'ouvrent qd je suis sur internet pour me dire que je dois télecharger et installer des antivirus et des antispyware. J'ai télécharger avg antispyware et il me détecte plein de truc.µMon antivirus est Macafee.
J'ai fait un hijackthis, voici le rapport :
Logfile of HijackThis v1.99.1
Scan saved at 22:39:43, on 3/02/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\Program Files\Network Associates\VirusScan\Avsynmgr.exe
C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Network Associates\VirusScan\VsStat.exe
C:\Program Files\Network Associates\VirusScan\Avconsol.exe
C:\Program Files\Network Associates\VirusScan\Webscanx.exe
C:\PROGRA~1\Toolbar\PIB.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\AGRSMMSG.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\System32\rundll32.exe
C:\WINDOWS\System32\NotifyPhoneBook.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\PROGRA~1\Toolbar\TBPS.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Psion\PsiWin\Psconsv.exe
C:\PROGRA~1\Toolbar\PIB.exe
C:\PROGRA~1\Psion\PsiWin\Elogerr.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\Nadine\Local Settings\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.websearch.com/search/ie.aspx?tbid=50135
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://69.50.191.52/2484/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.be/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\system32\spmrp.dll/sp.html#37049
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://www.websearch.com/search/ie.aspx?tbid=50135
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://69.50.191.52/2484/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.websearch.com/search/ie.aspx?tbid=50135
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://bestsearch.cc/2484/search.php?qq=
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.acer.com/worldwide/selection.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Microsoft Explorer - {3756900C-91CD-8645-BCA1-A735810F4101} - (no file)
O2 - BHO: (no name) - {4da4616d-7e6e-4fd9-a2d5-b6c535733e22} - (no file)
O2 - BHO: (no name) - {73364D99-1240-4dff-B12A-67E448373148} - (no file)
O2 - BHO: (no name) - {8952A998-1E7E-4716-B23D-3DBE03910972} - (no file)
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O3 - Toolbar: (no name) - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - (no file)
O3 - Toolbar: (no name) - {53E0B6E8-A51D-448B-B692-40B67B285543} - (no file)
O3 - Toolbar: (no name) - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - (no file)
O3 - Toolbar: (no name) - {339BB23F-A864-48C0-A59F-29EA915965EC} - (no file)
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.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: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [AME_CSA] rundll32 amecsa.cpl,RUN_DLL
O4 - HKLM\..\Run: [CloseDNF] C:\WINDOWS\System32\Utility.exe \1008
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [TBPS] C:\PROGRA~1\Toolbar\TBPS.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: Serveur de connexion PsiWin 2.3.lnk = C:\Program Files\Psion\PsiWin\Psconsv.exe
O8 - Extra context menu item: &Search - http://bar.mywebsearch.com/menusearch.html?p=ZNxdm39533
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra button: Créer un Favori de l'appareil mobile - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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
O12 - Plugin for .mid: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin2.dll
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O12 - Plugin for .mpeg: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin3.dll
O12 - Plugin for .png: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin5.dll
O14 - IERESET.INF: START_PAGE_URL=https://www.acer.com/worldwide/selection.html
O16 - DPF: {0594AF7E-573B-40DF-8165-E47AB2EAEFE8} - https://www.afternic.com/domains/downloadv3.com
O16 - DPF: {093F9CF8-0DE1-491C-95D5-5EC257BD4CA3} - https://www.afternic.com/domains/downloadv3.com
O16 - DPF: {09F1ADAC-76D8-4D0F-99A5-5C907DADB988} - http://cdn.downloadcontrol.com/files/installers/cab/SystemDoctor2006FreeInstall_fr.cab
O16 - DPF: {1EB17D1C-141D-4D9D-91CB-24D99215851D} - https://www.afternic.com/domains/downloadv3.com
O16 - DPF: {2472DCCC-68CE-49DA-AA81-E7E6D83C1DFA} - http://acces.blonde.com/package/op/PackageHtmlCab.CAB
O16 - DPF: {469C7080-8EC8-43A6-AD97-45848113743C} - https://www.afternic.com/domains/downloadv3.com
O16 - DPF: {7DBFDA8E-D33B-11D4-9269-00600868E56E} (WWWInstall Class) - http://go.securelive.com/speed/uk/WebInstall.dll
O16 - DPF: {86EEF11E-FF16-48CE-B1A2-474B663041A9} - http://1070810525000.kit.sexequalite.com/10152/CD/NewHentai.exe
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {C025FBB4-8327-4AA7-ABCE-1106EECF3CB6} - http://desktop.ilearning.com/launcher/irsshcl.dll
O16 - DPF: {D1B80EBF-1A26-4FEC-B0B9-DCB934C6507E} - http://dialup.carpediem.fr/CABS/1,0,3,8/fr/AccesMembre.cab
O16 - DPF: {EEECA057-AD0F-44A7-8BE5-8634CEDBDBD1} - https://www.afternic.com/domains/downloadv3.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{3B084093-D6ED-453C-8F73-6B1878D24E2C}: NameServer = 195.238.2.22 195.238.2.21
O18 - Filter: text/html - {582F7587-38B5-4425-89C4-707830116472} - (no file)
O18 - Filter: text/plain - {582F7587-38B5-4425-89C4-707830116472} - (no file)
O21 - SSODL: Web Event Logger - {7CFBACFF-EE01-1231-ABDD-416592E5D639} - (no file)
O23 - Service: Remote Procedure Call (RPC) Helper ( 11Fßä #•ºÄÖ`I) - Unknown owner - C:\WINDOWS\system32\javawb.exe (file missing)
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVSync Manager (AvSynMgr) - Unknown owner - C:\Program Files\Network Associates\VirusScan\Avsynmgr.exe
O23 - Service: GhostStartService - Symantec Corporation - C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
O23 - Service: McShield - Unknown owner - C:\Program Files\Fichiers communs\Network Associates\McShield\Mcshield.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: WinTools for IE service (WinToolsSvc) - Unknown owner - C:\Program Files\Common files\WinTools\WToolsS.exe (file missing)



merci pour votre aide