Probleme d anti virus

Bonjour,
Je n arrive plus a installer d anti virus.Jai fais un scan et voici ce qui me donne.
Que dois je faire?
Merci a celui qui repondra.

Malwarebytes' Anti-Malware 1.31
Version de la base de données: 1475
Windows 5.1.2600 Service Pack 2

08/12/2008 20:39:30
mbam-log-2008-12-08 (20-39-30).txt

Type de recherche: Examen complet (C:\|D:\|)
Eléments examinés: 186224
Temps écoulé: 49 minute(s), 10 second(s)

Processus mémoire infecté(s): 0
Module(s) mémoire infecté(s): 0
Clé(s) du Registre infectée(s): 9
Valeur(s) du Registre infectée(s): 1
Elément(s) de données du Registre infecté(s): 0
Dossier(s) infecté(s): 4
Fichier(s) infecté(s): 25

Processus mémoire infecté(s):
(Aucun élément nuisible détecté)

Module(s) mémoire infecté(s):
(Aucun élément nuisible détecté)

Clé(s) du Registre infectée(s):
HKEY_CLASSES_ROOT\torrentmanager.webmanager (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\torrentmanager.webmanager.1 (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{d5792aa9-d373-4039-8670-2cdab6a71f15} (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{2d2bee6e-3c9a-4d58-b9ec-458edb28d0f6} (Rogue.DriveCleaner) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{d5792aa9-d373-4039-8670-2cdab6a71f15} (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{09f1adac-76d8-4d0f-99a5-5c907dadb988} (Rogue.Multiple) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{d5792aa9-d373-4039-8670-2cdab6a71f15} (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\BitDownload (Trojan.Lop) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\WakeNet (Trojan.Adware) -> Quarantined and deleted successfully.

Valeur(s) du Registre infectée(s):
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mule_st_key (Trojan.Agent) -> Delete on reboot.

Elément(s) de données du Registre infecté(s):
(Aucun élément nuisible détecté)

Dossier(s) infecté(s):
C:\WINDOWS\system32\drivers\downld (Trojan.Agent) -> Files: 946 -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\SystemDoctor 2006 Free (Rogue.SystemDoctor) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\SystemDoctor 2006 Free\Logs (Rogue.SystemDoctor) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\m (Trojan.Agent) -> Delete on reboot.

Fichier(s) infecté(s):
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\qquas_navps.dat (Adware.Navipromo.H) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\qquas_nav.dat (Adware.Navipromo.H) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\qquas.dat (Adware.Navipromo.H) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\100078.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\100625.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\150218.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\93671.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\96859.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\129828.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\downld\132531.exe (Worm.Bagle) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Local Settings\Temporary Internet Files\Content.IE5\XGW52G1V\b64[3].jpg (Worm.Bagle) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\SystemDoctor 2006 Free\Logs\update.log (Rogue.SystemDoctor) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\m\data.oct (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\m\list.oct (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Documents and Settings\Propriétaire\Application Data\m\srvlist.oct (Trojan.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\mdelk.exe (Trojan.Spammer) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\wintems.exe (Trojan.Spammer) -> Delete on reboot.
C:\Documents and Settings\Propriétaire\Application Data\m\flec006.exe (Trojan.Agent) -> Delete on reboot.
C:\WINDOWS\system32\kzwdmhoe_navps.dat (Adware.NaviPromo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\kzwdmhoe_nav.dat (Adware.NaviPromo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\nvs2.inf (Adware.EGDAccess) -> Quarantined and deleted successfully.
C:\Program Files\EoRezo (Rogue.Eorezo) -> Delete on reboot.
C:\Documents and Settings\Propriétaire\Bureau\Spyware-Secure trial.lnk (Rogue.Spyware-Secure) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\hldrrr.exe (Rootkit.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\srosa.sys (Rootkit.Bagle) -> Quarantined and deleted successfully.