Ciao cbbusto,
ho fatto le operazioni consigliate , ti allego i log richiesti :

# AdwCleaner v2.101 - Logfile creato il 19/12/2012 alle 14:32:24
# Aggiornamento 16/12/2012 by Xplode
# Sistema Operativo : Microsoft Windows XP Service Pack 3 (32 bits)
# Utente : Pinuccio - PINUCCIO-A6435D
# Modalità Avvio : Modalità Normale
# Eseguito da : C:\Documents and Settings\Pinuccio\Documenti\Download\adwcleaner.exe
# Opzioni [Elimina]


***** [Servizi] *****


***** [File / Cartelle] *****

Cartella Eliminato : C:\Documents and Settings\All Users\Dati applicazioni\Babylon
Cartella Eliminato : C:\Documents and Settings\All Users\Dati applicazioni\boost_interprocess
Cartella Eliminato : C:\Documents and Settings\All Users\Dati applicazioni\SweetIM
Cartella Eliminato : C:\Documents and Settings\Pinuccio\Dati applicazioni\Babylon
Cartella Eliminato : C:\Documents and Settings\Pinuccio\Dati applicazioni\BabylonToolbar
Cartella Eliminato : C:\Documents and Settings\Pinuccio\Dati applicazioni\searchquband
Cartella Eliminato : C:\Programmi\Conduit
Cartella Eliminato : C:\Programmi\Free Offers from Freeze.com
Cartella Eliminato : C:\Programmi\Smartdl
Cartella Eliminato : C:\Programmi\SweetIM
File Eliminato : C:\user.js

***** [Registro] *****

Chiave Eliminata : HKCU\Software\BabylonToolbar
Chiave Eliminata : HKCU\Software\Conduit
Chiave Eliminata : HKCU\Software\DataMngr_Toolbar
Chiave Eliminata : HKCU\Software\IM
Chiave Eliminata : HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{AFDBDDAA-5D3F-42EE-B79C-185A7020515B}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{2EECD738-5844-4A99-B4B6-146BF802613B}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{5AB7104A-B71F-49AD-9154-F7F8806AE848}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{98889811-442D-49DD-99D7-DC866BE87DBC}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{C9A6357B-25CC-4BCF-96C1-78736985D412}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{EEE6C35C-6118-11DC-9C72-001320C79847}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{2EECD738-5844-4A99-B4B6-146BF802613B}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{5AB7104A-B71F-49AD-9154-F7F8806AE848}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{98889811-442D-49DD-99D7-DC866BE87DBC}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{C9A6357B-25CC-4BCF-96C1-78736985D412}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{EEE6C35C-6118-11DC-9C72-001320C79847}
Chiave Eliminata : HKCU\Software\searchqutoolbar
Chiave Eliminata : HKCU\Software\SmartBar
Chiave Eliminata : HKCU\Software\Softonic
Chiave Eliminata : HKCU\Software\Surf Canyon
Chiave Eliminata : HKCU\Software\SweetIM
Chiave Eliminata : HKLM\Software\Babylon
Chiave Eliminata : HKLM\Software\BabylonToolbar
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{09C554C3-109B-483C-A06B-F14172F1A947}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{35C1605E-438B-4D64-AAB1-8885F097A9B1}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{4E1E9D45-8BF9-4139-915C-9F83CC3D5921}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{B12E99ED-69BD-437C-86BE-C862B9E5444D}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{BDB69379-802F-4EAF-B541-F8DE92DD98DB}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{D7EE8177-D51E-4F89-92B6-83EA2EC40800}
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\BrowserConnection.dll
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\DNSBHO.dll
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\escort.DLL
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\escortApp.DLL
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\escortEng.DLL
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\escorTlbr.DLL
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\esrv.EXE
Chiave Eliminata : HKLM\SOFTWARE\Classes\b
Chiave Eliminata : HKLM\SOFTWARE\Classes\Babylon.dskBnd
Chiave Eliminata : HKLM\SOFTWARE\Classes\Babylon.dskBnd.1
Chiave Eliminata : HKLM\SOFTWARE\Classes\bbylnApp.appCore
Chiave Eliminata : HKLM\SOFTWARE\Classes\bbylnApp.appCore.1
Chiave Eliminata : HKLM\SOFTWARE\Classes\CLSID\{3C471948-F874-49F5-B338-4F214A2EE0B1}
Chiave Eliminata : HKLM\SOFTWARE\Classes\CLSID\{C9A6357B-25CC-4BCF-96C1-78736985D412}
Chiave Eliminata : HKLM\SOFTWARE\Classes\escort.escortIEPane
Chiave Eliminata : HKLM\SOFTWARE\Classes\escort.escortIEPane.1
Chiave Eliminata : HKLM\SOFTWARE\Classes\escort.escrtBtn.1
Chiave Eliminata : HKLM\SOFTWARE\Classes\esrv.BabylonESrvc
Chiave Eliminata : HKLM\SOFTWARE\Classes\esrv.BabylonESrvc.1
Chiave Eliminata : HKLM\SOFTWARE\Classes\Interface\{6E4C89CF-3061-4EE4-B22A-B7A8AAEA5CB3}
Chiave Eliminata : HKLM\SOFTWARE\Classes\Prod.cap
Chiave Eliminata : HKLM\SOFTWARE\Classes\SearchQUIEHelper.DNSGuard
Chiave Eliminata : HKLM\SOFTWARE\Classes\SearchQUIEHelper.DNSGuard.1
Chiave Eliminata : HKLM\Software\Conduit
Chiave Eliminata : HKLM\Software\Freeze.com
Chiave Eliminata : HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{8375D9C8-634F-4ECB-8CF5-C7416BA5D542}
Chiave Eliminata : HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{99079A25-328F-4BD4-BE04-00955ACAA0A7}
Chiave Eliminata : HKLM\Software\SweetIM

***** [Browser Internet] *****

-\\ Internet Explorer v8.0.6001.18702

[OK] Registro Pulito.

*************************

AdwCleaner[S1].txt - [5487 octets] - [19/12/2012 14:32:24]

########## EOF - C:\AdwCleaner[S1].txt - [5547 octets] ##########


Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 14.37.47, on 19/12/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

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:\Programmi\Microsoft Security Client\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\RunDLL32.exe
C:\WINDOWS\vVX3000.exe
C:\Programmi\Microsoft Security Client\msseces.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programmi\Microsoft LifeCam\MSCamS32.exe
C:\Programmi\Nitro PDF\Reader 2\NitroPDFReaderDriverService2.exe
C:\Programmi\CDBurnerXP\NMSAccessU.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Documents and Settings\All Users\Dati applicazioni\Skype\Toolbars\Skype C2C Service\c2c_service.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Mozilla Firefox\plugin-container.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.tiscali.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Programmi\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RunDLL32.exe NvMCTray.dll,NvTaskbarInit -login
O4 - HKLM\..\Run: [nwiz] C:\Programmi\NVIDIA Corporation\nView\nwiz.exe /installquiet
O4 - HKLM\..\Run: [LifeCam] "C:\Programmi\Microsoft LifeCam\LifeExp.exe"
O4 - HKLM\..\Run: [VX3000] C:\WINDOWS\vVX3000.exe
O4 - HKLM\..\Run: [MSC] "c:\Programmi\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [DWQueuedReporting] "C:\PROGRA~1\FILECO~1\MICROS~1\DW\dwtrig20.exe" -t (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Scarica con Download &Express - C:\Programmi\Download Express\Add_Url.htm
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Programmi\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Programmi\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Programmi\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: NitroPDFReaderDriverCreatorReadSpool2 (NitroReaderDriverReadSpool2) - Nitro PDF Software - C:\Programmi\Nitro PDF\Reader 2\NitroPDFReaderDriverService2.exe
O23 - Service: NMSAccess - Unknown owner - C:\Programmi\CDBurnerXP\NMSAccessU.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: NVIDIA Update Service Daemon (nvUpdatusService) - NVIDIA Corporation - C:\Programmi\NVIDIA Corporation\NVIDIA Updatus\daemonu.exe
O23 - Service: Skype C2C Service - Skype Technologies S.A. - C:\Documents and Settings\All Users\Dati applicazioni\Skype\Toolbars\Skype C2C Service\c2c_service.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Programmi\Skype\Updater\Updater.exe

--
End of file - 6091 bytes

Va bene, anche io devo andare al lavoro, ci sentiamo questa sera sul tardi o al massimo domani mattina.
Grazie per adesso.
A presto risentirci
Pinuccio

Ciao cbbusto
ho eseguito tutte le tue indicazioni, sembra che al momento il pc sia migliorato, vediamo domani se mi da altri problemi.
Per il momento grazie ancora della tua disponibilità e a presto risentirci.
Buona notte.
Pinuccio