Ciao! Ho fatto quello che mi hai detto, e per sicurezza ho fatto una scansione con hijackthis, ecco qui i logs:
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 14.40.36, on 16/05/2013
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v9.00 (9.00.8112.16483)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
C:\Windows\PLFSetI.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Acer Arcade Deluxe\PlayMovie\PMVService.exe
C:\Program Files\ESET\ESET NOD32 Antivirus\egui.exe
C:\Windows\ehome\ehtray.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Acer\Acer PowerSmart Manager\ePowerTray.exe
C:\Users\Marco\AppData\Local\Temp\RtkBtMnt.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CCC.exe
C:\Program Files\Common Files\Adobe\OOBE\PDApp\UWA\AAM Updates Notifier.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0909&m=aspire_5738
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.smsveloce.it/ricerca/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0909&m=aspire_5738
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 = ${URL_SEARCHPAGE}
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0909&m=aspire_5738
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1:9421;*.local;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\ProgramData\Real\RealPlayer\BrowserRecordPlugin\IE\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:\Program Files\Microsoft\Search Enhancement Pack\Search Helper\SEPsearchhelperie.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Windows Live Messenger Companion Helper - {9FDDE16B-836F-4806-AB1F-1455CBEFF289} - C:\Program Files\Windows Live\Companion\companioncore.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: Hotspot Shield Class - {F9E4A054-E9B1-4BC3-83A3-76A1AE736170} - C:\Program Files\Hotspot Shield\HssIE\HssIE.dll
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
O4 - HKLM\..\Run: [PLFSetI] C:\Windows\PLFSetI.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [LManager] C:\Program Files\Launch Manager\LManager.exe
O4 - HKLM\..\Run: [Acer ePower Management] C:\Program Files\Acer\Acer PowerSmart Manager\ePowerTrayLauncher.exe
O4 - HKLM\..\Run: [PlayMovie] "C:\Program Files\Acer Arcade Deluxe\PlayMovie\PMVService.exe"
O4 - HKLM\..\Run: [AdobeAAMUpdater-1.0] "C:\Program Files\Common Files\Adobe\OOBE\PDApp\UWA\UpdaterStartupUtility.exe"
O4 - HKLM\..\Run: [SwitchBoard] C:\Program Files\Common Files\Adobe\SwitchBoard\SwitchBoard.exe
O4 - HKLM\..\Run: [egui] "C:\Program Files\ESET\ESET NOD32 Antivirus\egui.exe" /hide /waitservice
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [uTorrent] "C:\Program Files\uTorrent\uTorrent.exe" /MINIMIZED
O4 - HKCU\..\Run: [Facebook Update] "C:\Users\Marco\AppData\Local\Facebook\Update\FacebookUpdate.exe" /c /nocrashserver
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_6CE5017F567343CA.dll/cmsidewiki.html
O9 - Extra button: @C:\Program Files\Windows Live\Companion\companionlang.dll,-600 - {0000036B-C524-4050-81A0-243669A86B9F} - C:\Program Files\Windows Live\Companion\companioncore.dll
O9 - Extra button: @C:\Program Files\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1004 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: @C:\Program Files\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1003 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {5C051655-FCD5-4969-9182-770EA5AA5565} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab56986.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/MessengerGamesContent/GameContent/it/uno1/GAME_UNO1.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{74109EBC-C055-44D6-BF78-61C0F79E71F9}: NameServer = 198.153.192.1,4.2.2.5
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: c:\progra~1\browse~1\sprote~1.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {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: Agere Modem Call Progress Audio (AgereModemAudio) - Agere Systems - C:\Windows\system32\agrsmsvc.exe
O23 - Service: AMD External Events Utility - AMD - C:\Windows\system32\atiesrxx.exe
O23 - Service: Autodesk Content Service - Unknown owner - C:\Program Files\Autodesk\Content Service\Connect.Service.ContentService.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: ESET Service (ekrn) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\ekrn.exe
O23 - Service: Acer ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\Acer\Acer PowerSmart Manager\ePowerSvc.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Program Files\Intel\WiFi\bin\EvtEng.exe
O23 - Service: FLEXnet Licensing Service - Flexera Software, Inc. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio di Google Update (gupdate1cac28faee88f88) (gupdate1cac28faee88f88) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Hotspot Shield Service (hshld) - AnchorFree Inc. - C:\Program Files\Hotspot Shield\bin\openvpnas.exe
O23 - Service: Hotspot Shield Routing Service (HssSrv) - AnchorFree Inc. - C:\Program Files\Hotspot Shield\HssWPR\hsssrv.exe
O23 - Service: Hotspot Shield Tray Service (HssTrayService) - Unknown owner - C:\Program Files\Hotspot Shield\bin\HssTrayService.EXE
O23 - Service: Hotspot Shield Monitoring Service (HssWd) - Unknown owner - C:\Program Files\Hotspot Shield\bin\hsswd.exe
O23 - Service: MyWinLocker Service (MWLService) - Egis Technology Inc. - C:\Program Files\EgisTec\MyWinLocker 3\x86\\MWLService.exe
O23 - Service: NTI IScheduleSvc - NewTech Infosystems, Inc. - C:\Program Files\NewTech Infosystems\Acer Backup Manager\IScheduleSvc.exe
O23 - Service: NTI Backup Now 5 Backup Service (NTIBackupSvc) - NewTech InfoSystems, Inc. - C:\Program Files\NewTech Infosystems\NTI Backup Now 5\BackupSvc.exe
O23 - Service: NTI Backup Now 5 Scheduler Service (NTISchedulerSvc) - NewTech Infosystems, Inc. - C:\Program Files\NewTech Infosystems\NTI Backup Now 5\SchedulerSvc.exe
O23 - Service: Internet Pass-Through Service (PassThru Service) - Unknown owner - C:\Program Files\HTC\Internet Pass-Through\PassThruSvr.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files\Spybot - Search & Destroy\SDWinSec.exe
O23 - Service: ServiceLayer - Nokia - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: Skype C2C Service - Unknown owner - C:\ProgramData\Skype\Toolbars\Skype C2C Service\c2c_service.exe (file missing)
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files\Skype\Updater\Updater.exe
O23 - Service: SwitchBoard - Adobe Systems Incorporated - C:\Program Files\Common Files\Adobe\SwitchBoard\SwitchBoard.exe

--
End of file - 11232 bytes

Ciao, ecco i log:
# AdwCleaner v2.300 - Logfile creato il 16/05/2013 alle 18:16:39
# Aggiornamento 28/04/2013 by Xplode
# Sistema Operativo : Windows Vista (TM) Home Premium Service Pack 2 (32 bits)
# Utente : Marco - PC-MARCO
# Modalità Avvio : Modalità Normale
# Eseguito da : C:\Users\Marco\Downloads\adwcleaner.exe
# Opzioni [Elimina]


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


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

Cartella Eliminato : C:\ProgramData\BBrowse22ssave
Cartella Eliminato : C:\ProgramData\InstallMate
Cartella Eliminato : C:\Users\Marco\AppData\LocalLow\BBrowse22ssave

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

Chiave Eliminata : HKCU\Software\1ClickDownload
Chiave Eliminata : HKCU\Software\AppDataLow\SProtector
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\App Management\ARPCache\Vid-Saver
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{F9E4A054-E9B1-4BC3-83A3-76A1AE736170}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{F9E4A054-E9B1-4BC3-83A3-76A1AE736170}
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\grusskartencenter.com
Chiave Eliminata : HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains\grusskartencenter.com
Chiave Eliminata : HKLM\SOFTWARE\Classes\AppID\{608D3067-77E8-463D-9084-908966806826}
Chiave Eliminata : HKLM\SOFTWARE\Classes\CLSID\{35B8892D-C3FB-4D88-990D-31DB2EBD72BD}
Chiave Eliminata : HKLM\SOFTWARE\Classes\CLSID\{F9E4A054-E9B1-4BC3-83A3-76A1AE736170}
Chiave Eliminata : HKLM\SOFTWARE\Classes\Interface\{3F607E46-0D3C-4442-B1DE-DE7FA4768F5C}
Chiave Eliminata : HKLM\SOFTWARE\Classes\Interface\{FE0273D1-99DF-4AC0-87D5-1371C6271785}
Chiave Eliminata : HKLM\SOFTWARE\Classes\TypeLib\{93E3D79C-0786-48FF-9329-93BC9F6DC2B3}
Chiave Eliminata : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F9E4A054-E9B1-4BC3-83A3-76A1AE736170}
Chiave Eliminata : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved\{EF99BD32-C1FB-11D2-892F-0090271D4F88}
Chiave Eliminata : HKLM\Software\SP Global
Chiave Eliminata : HKLM\Software\SProtector

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

-\\ Internet Explorer v9.0.8112.16483

[OK] Registro Pulito.

-\\ Google Chrome v26.0.1410.64

File : C:\Users\Marco\AppData\Local\Google\Chrome\User Data\Default\Preferences

[OK] File Pulito.

File : C:\Users\Marco_uni\AppData\Local\Google\Chrome\User Data\Default\Preferences

[OK] File Pulito.

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

AdwCleaner[R1].txt - [7500 octets] - [17/02/2013 12:58:21]
AdwCleaner[S1].txt - [6939 octets] - [17/02/2013 12:58:50]
AdwCleaner[S2].txt - [2659 octets] - [16/05/2013 18:16:39]

########## EOF - C:\AdwCleaner[S2].txt - [2719 octets] ##########

C'è da dire però che mi ha combinato casini con google chrome...

ciao, cosa intendi con invadente?