Mémoire physique diminue?

Bonjour, je viens de voir dans "information systeme" que la mémoire physique disponible de mon PC est de 357 mo tandis que j'en ai 768 Mo.

Pourquoi ce phénomène? Que faire pour le retour a la normal? car en effet je remarque, qu'elle diminue petit a petit.

Merci de vos réponses :-D

Désolé je comprend pas trop ce que tu viens de dire ^^

Pour information ma carte graphique est : ATI Radeon 9200

Comme anti virus, j'ai avast (mis a jour) et Norton (pas mis a jour)

Logfile of HijackThis v1.99.1
Scan saved at 21:03:02, on 13/07/2006
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\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Norton Internet Security\NISUM.EXE
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Virtual CD v4 SDK\system\vcsplay.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\modem ADSL USB\modem ADSL USB\dslmon.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpohmr08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Norton Internet Security\ccPxySvc.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Virtual CD v4 SDK\system\vcssecs.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\Cedric\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.neuf.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.gwshop.net/?inc=accueil
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {00000000-59D4-4008-9058-080011001200} - (no file)
O2 - BHO: (no name) - {00000000-C1EC-0345-6EC2-4D0300000000} - (no file)
O2 - BHO: (no name) - {00000000-F09C-02B4-6EC2-AD0300000000} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\apps\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {3ceff6cd-6f08-4e4d-bccd-ff7415288c3b} - (no file)
O2 - BHO: (no name) - {77701e16-9bfe-4b63-a5b4-7bd156758a37} - (no file)
O2 - BHO: (no name) - {7b55bb05-0b4d-44fd-81a6-b136188f5deb} - (no file)
O2 - BHO: (no name) - {8333c319-0669-4893-a418-f56d9249fca6} - (no file)
O2 - BHO: (no name) - {9c691a33-7dda-4c2f-be4c-c176083f35cf} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {e52dedbb-d168-4bdb-b229-c48160800e81} - (no file)
O2 - BHO: (no name) - {ffd2825e-0785-40c5-9a41-518f53a8261f} - (no file)
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Fichiers communs\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [Adware.Srv32] C:\WINDOWS\System32\runsrv32.exe
O4 - HKLM\..\Run: [Transponder] C:\WINDOWS\System32\susp.exe
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [VCSPlayer] "C:\Program Files\Virtual CD v4 SDK\system\vcsplay.exe"
O4 - HKLM\..\Run: [CleanEasyImg] c:\apps\easydvd\cleanall.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe" /WinStart
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: DSLMON.lnk = ?
O4 - Global Startup: hp psc 1000 series.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
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
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/bina [...] b31267.cab
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/bina [...] b31267.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/bina [...] b31267.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6 [...] vSniff.cab
O16 - DPF: {33331111-1111-1111-1111-611111193423} -
O16 - DPF: {33331111-1111-1111-1111-611111193429} -
O16 - DPF: {33331111-1111-1111-1111-615111193427} -
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/window [...] 2785724218
O16 - DPF: {64311111-1111-1121-1111-111191113457} - file://c:\eied_s7.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6 [...] /cabsa.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/micros [...] 2786025203
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537 [...] scan53.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/bina [...] b31267.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/bina [...] b32846.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{C32EE389-58C4-4D6C-A9F2-9BE4A5DFDAB6}: NameServer = 84.103.237.145 86.64.145.145
O18 - Protocol: bw+0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw+0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw-0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw-0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw00 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw00s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw10 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw10s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw20 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw20s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw30 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw30s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw40 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw40s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw50 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw50s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw60 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw60s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw70 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw70s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw80 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw80s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw90 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bw90s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwa0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwa0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwb0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwb0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwc0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwc0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwd0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwd0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwe0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwe0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwf0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwf0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O18 - Protocol: bwg0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwg0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwh0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwh0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0s - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O18 - Protocol: offline-8876480 - {43B7DA3E-9496-4CA5-ABD7-BA1E5C50979C} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~2\GOEC62~1.DLL
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Boonty Games - BOONTY - C:\Program Files\Fichiers communs\BOONTY Shared\Service\Boonty.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation Service (ccPwdSvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Proxy Service (ccPxySvc) - Symantec Corporation - C:\Program Files\Norton Internet Security\ccPxySvc.exe
O23 - Service: Service Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Internet Security Accounts Manager (NISUM) - Symantec Corporation - C:\Program Files\Norton Internet Security\NISUM.EXE
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Center\SymWSC.exe
O23 - Service: Virtual CD v4 Security service (SDK - Version) (VCSSecS) - H+H Software GmbH - C:\Program Files\Virtual CD v4 SDK\system\vcssecs.exe

Voila, c'est grave docteur?

Jai fait l'analyse avant de l'avoir desinstalé :-)
Merci de tes conseils, je fais sa de suite