Ordi kii s'éteind tout seul

Bonjour, j'ai l'impression ke maon ordi bugg et ralentie.
De plus il s'éteint tout seul
un message apparait puis il me laisse 50 seconde pour fermer toutes les applicaation avant qu'il s'éteigne.
Je suis entrain de re scanner.
tout les truc su style cleanup, anti spyware schearch and destroyed et adware 6 ont été faits.
Voila aidez moi svp
Voici mon log:

Logfile of HijackThis v1.99.1
Scan saved at 20:09:43, on 17/07/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\svchost.exe
I:\WINDOWS\System32\svchost.exe
I:\WINDOWS\system32\spoolsv.exe
I:\WINDOWS\Explorer.EXE
I:\Program Files\Eset\nod32kui.exe
I:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
I:\Program Files\Microsoft AntiSpyware\gcasServ.exe
I:\WINDOWS\System32\wins.exe
I:\Program Files\Numericable\Mon Assistant Internet\bin\mpbtn.exe
I:\Program Files\Microsoft AntiSpyware\gcasDtServ.exe
I:\Program Files\Eset\nod32krn.exe
I:\WINDOWS\System32\nvsvc32.exe
I:\WINDOWS\system32\ZoneLabs\vsmon.exe
I:\Program Files\Lavasoft\Ad-aware 6\Ad-aware.exe
I:\Program Files\MSN Messenger\msnmsgr.exe
I:\WINDOWS\System32\wuauclt.exe
I:\WINDOWS\System32\wuauclt.exe
I:\Program Files\Eset\nod32.exe
I:\Documents and Settings\Salem\Bureau\Nouveau dossier\Nouveau dossier\HijackThis-1.exe
I:\Program Files\Internet Explorer\iexplore.exe
I:\WINDOWS\system32\tftp.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = NUMERICABLE
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - I:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn\ycomp5_3_18_0.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - I:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - I:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn\ycomp5_3_18_0.dll
O4 - HKLM\..\Run: [nod32kui] "I:\Program Files\Eset\nod32kui.exe" /WAITSERVICE
O4 - HKLM\..\Run: [Zone Labs Client] I:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\Run: [gcasServ] "I:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: [Sygate Personal Firewall] wins.exe
O4 - HKLM\..\RunServices: [Sygate Personal Firewall] wins.exe
O4 - HKCU\..\Run: [Sygate Personal Firewall] wins.exe
O4 - Global Startup: Mon Assistant Internet.lnk = I:\Program Files\NUMERICABLE\Mon Assistant Internet\bin\matcli.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - I:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - I:\WINDOWS\web\related.htm
O16 - DPF: {04E214E5-63AF-4236-83C6-A7ADCBF9BD02} (HouseCall Control) - http://housecall60.trendmicro.com/housecall/xscan60.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab31267.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1120830344371
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {A3009861-330C-4E10-822B-39D16EC8829D} (CRAVOnline Object) - http://www.ravantivirus.com/scan/ravonline.cab
O23 - Service: NOD32 Kernel Service (NOD32krn) - Unknown owner - I:\Program Files\Eset\nod32krn.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - I:\WINDOWS\System32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - I:\WINDOWS\system32\ZoneLabs\vsmon.exe

MERCI