Ciao ccbusto!
Passate bene le vacanze?
Ecco qui:

# AdwCleaner v3.004 - Report created 15/09/2013 at 17:31:02
# Updated 15/09/2013 by Xplode
# Operating System : Windows Vista (TM) Home Premium Service Pack 2 (32 bits)
# Username : Marco - PC-MARCO
# Running from : C:\Users\Marco\Downloads\adwcleaner (1).exe
# Option : Clean

***** [ Services ] *****


***** [ Files / Folders ] *****

Folder Deleted : C:\Program Files\Wajam
Folder Deleted : C:\Users\Marco\Downloads\Documents\smart pc cleaner

***** [ Shortcuts ] *****


***** [ Registry ] *****

Value Deleted : HKCU\Software\Mozilla\Firefox\Extensions [{5a95a9e0-59dd-4314-bd84-4d18ca83a0e2}]
Key Deleted : HKLM\SOFTWARE\Classes\AppID\{D616A4A2-7B38-4DBC-9093-6FE7A4A21B17}
Key Deleted : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{A7A6995D-6EE1-4FD1-A258-49395D5BF99C}
Key Deleted : HKLM\Software\InstallIQ
Key Deleted : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{A92DAB39-4E2C-4304-9AB6-BC44E68B55E2}

***** [ Browsers ] *****

-\\ Internet Explorer v9.0.8112.16506


-\\ Mozilla Firefox v

-\\ Google Chrome v29.0.1547.66

[ File : C:\Users\Marco\AppData\Local\Google\Chrome\User Data\Default\preferences ]


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

AdwCleaner[R0].txt - [878 octets] - [25/08/2013 16:14:21]
AdwCleaner[R1].txt - [1457 octets] - [15/09/2013 17:30:06]
AdwCleaner[S0].txt - [946 octets] - [25/08/2013 16:15:16]
AdwCleaner[S1].txt - [1396 octets] - [15/09/2013 17:31:02]

########## EOF - C:\AdwCleaner\AdwCleaner[S1].txt - [1456 octets] ##########






E anche: Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 17.36.39, on 15/09/2013
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v9.00 (9.00.8112.16506)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Avira\AntiVir Desktop\avgnt.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=0613&m=aspire_5738
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0613&m=aspire_5738
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=0613&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 = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0613&m=aspire_5738
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
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: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [LManager] C:\Program Files\Launch Manager\LManager.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {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: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O15 - Trusted IP range: http://192.168.0.1
O15 - ESC Trusted IP range: http://192.168.0.1
O17 - HKLM\System\CCS\Services\Tcpip\..\{EEA61A8D-658D-4050-9395-14F399D34652}: NameServer = 192.168.0.1
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
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: Avira Pianificatore (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Real-Time Protection (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: BitComet Disk Boost Service (BITCOMET_HELPER_SERVICE) - www.BitComet.com - C:\Program Files\BitComet\tools\BitCometService.exe
O23 - Service: CLHNService - Unknown owner - C:\Program Files\Acer Arcade Deluxe\HomeMedia\Kernel\DMP\CLHNService.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Program Files\Intel\WiFi\bin\EvtEng.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - 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: MyWinLocker Service (MWLService) - Egis Technology Inc. - C:\Program Files\EgisTec\MyWinLocker 3\x86\\MWLService.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: StarWind AE Service (StarWindServiceAE) - StarWind Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe

--
End of file - 5567 bytes

Perfetto, ho risolto tutto!
Grazie mille, sempre i migliori! :D