era un po impestato ho gia fatto awdcleaner che mi ha tolto parecchie cose e malware bytes che nn ha trovato niente.Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 15:14:39, on 17/04/2013
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v9.00 (9.00.8112.16476)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
C:\Program Files (x86)\Sony\ISB Utility\ISBMgr.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Users\Public\Documents\AppData\PoApp\PService.exe
C:\Program Files\Sony\VAIO Care\listener.exe
C:\Program Files (x86)\Internet Explorer\IELowutil.exe
C:\Users\Alvaro.Anto\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Alvaro.Anto\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Alvaro.Anto\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Common Files\microsoft shared\virtualization handler\cvh.exe
C:\Program Files (x86)\Common Files\microsoft shared\virtualization handler\OfficeVirt.exe
C:\Program Files (x86)\Trend Micro\HiJackThis\HiJackThis.exe
C:\Windows\SysWOW64\DllHost.exe

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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre7\bin\ssv.dll
O2 - BHO: IESpeakDoc - {8D10F6C4-0E01-4BD4-8601-11AC1FDF8126} - C:\Program Files (x86)\Bluetooth Suite\IEPlugIn.dll
O2 - BHO: Guida per l'accesso a Windows Live ID - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\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 (x86)\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [IAStorIcon] C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
O4 - HKLM\..\Run: [ISBMgr.exe] "C:\Program Files (x86)\Sony\ISB Utility\ISBMgr.exe"
O4 - HKLM\..\Run: [PosService] C:\Users\Public\Documents\AppData\PoApp\PLauncher.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware] C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [Facebook Update] "C:\Users\Alvaro.Anto\AppData\Local\Facebook\Update\FacebookUpdate.exe" /c /nocrashserver
O4 - HKCU\..\Run: [Google Update] "C:\Users\Alvaro.Anto\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [SCheck] "C:\Users\Alvaro.Anto\AppData\Roaming\SCheck\SCheck.exe" check
O4 - HKCU\..\Run: [Intermediate] "C:\Users\Alvaro.Anto\AppData\Roaming\Intermediate\Intermediate.exe"
O4 - HKCU\..\Run: [Yontoo Desktop] "C:\Users\Alvaro.Anto\AppData\Roaming\Yontoo\YontooDesktop.exe"
O9 - Extra button: (no name) - {7815BE26-237D-41A8-A98F-F7BD75F71086} - C:\Program Files (x86)\Bluetooth Suite\IEPlugIn.dll
O9 - Extra 'Tools' menuitem: Send by Bluetooth to - {7815BE26-237D-41A8-A98F-F7BD75F71086} - C:\Program Files (x86)\Bluetooth Suite\IEPlugIn.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
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
O17 - HKLM\System\CCS\Services\Tcpip\..\{24011006-9CE1-4B68-81A7-E0DB95D423CE}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{61EBB892-7F79-4E51-993F-B8EEA16377E9}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{846ee342-7039-11de-9d20-806e6f6e6963}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{B9E545EC-82E1-41B3-B54E-C46E61DCB2E7}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{BCEB0A7E-4F91-4997-BE24-D3DADED14847}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{F078D6CF-90A0-4AC7-AE6A-8373C2C6D245}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CS1\Services\Tcpip\..\{24011006-9CE1-4B68-81A7-E0DB95D423CE}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CS2\Services\Tcpip\..\{24011006-9CE1-4B68-81A7-E0DB95D423CE}: NameServer = 8.8.8.8,8.8.4.4
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: ArcSoft Connect Daemon (ACDaemon) - ArcSoft Inc. - C:\Program Files (x86)\Common Files\ArcSoft\Connection Service\Bin\ACService.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: Atheros Bt&Wlan Coex Agent - Atheros - C:\Program Files (x86)\Bluetooth Suite\Ath_CoexAgent.exe
O23 - Service: AtherosSvc - Atheros Commnucations - C:\Program Files (x86)\Bluetooth Suite\adminservice.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Intel(R) Rapid Storage Technology (IAStorDataMgrSvc) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorDataMgrSvc.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Intel(R) Management and Security Application Local Management Service (LMS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\LMS\LMS.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: PMBDeviceInfoProvider - Sony Corporation - C:\Program Files (x86)\Sony\PMB\PMBDeviceInfoProvider.exe
O23 - Service: Pos Service (PowerOffer Service) - PowerOfferService - C:\Users\Alvaro.Anto\AppData\Local\PosService\Pos.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: VAIO Care Performance Service (SampleCollector) - Sony Corporation - C:\Program Files\Sony\VAIO Care\VCPerfService.exe
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Serv Updater (ServUpdater) - ServiceUpd - C:\Users\Alvaro.Anto\AppData\Local\ServUpdater\ServiceUpd.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: Software Upd (SoftwareUpd) - SoftwareUpdService - C:\Users\Alvaro.Anto\AppData\Local\SoftwareUpdater\SoftwareUpdService.exe
O23 - Service: VAIO Content Importer (SOHCImp) - Sony Corporation - C:\Program Files (x86)\Common Files\Sony Shared\SOHLib\SOHCImp.exe
O23 - Service: VAIO Device Searcher (SOHDs) - Sony Corporation - C:\Program Files (x86)\Common Files\Sony Shared\SOHLib\SOHDs.exe
O23 - Service: VAIO Entertainment Common Service (SpfService) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Entertainment Platform\SPF\SpfService64.exe
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\3D Vision\nvSCPAPISvr.exe
O23 - Service: CamMonitor (uCamMonitor) - ArcSoft, Inc. - C:\Program Files (x86)\ArcSoft\Magic-i Visual Effects 2\uCamMonitor.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Intel(R) Management and Security Application User Notification Service (UNS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\UNS\UNS.exe
O23 - Service: VAIO Event Service - Sony Corporation - C:\Program Files (x86)\Sony\VAIO Event Service\VESMgr.exe
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: VAIO Content Folder Watcher (VCFw) - Sony Corporation - C:\Program Files (x86)\Common Files\Sony Shared\VAIO Content Folder Watcher\VCFw.exe
O23 - Service: VAIO Content Metadata Intelligent Analyzing Manager (VcmIAlzMgr) - Sony Corporation - C:\Program Files\Sony\VCM Intelligent Analyzing Manager\VcmIAlzMgr.exe
O23 - Service: VAIO Content Metadata Intelligent Network Service Manager (VcmINSMgr) - Sony Corporation - C:\Program Files\Sony\VCM Intelligent Network Service Manager\VcmINSMgr.exe
O23 - Service: VAIO Content Metadata XML Interface (VcmXmlIfHelper) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VcmXml\VcmXmlIfHelper64.exe
O23 - Service: VCService - Sony Corporation - C:\Program Files\Sony\VAIO Care\VCService.exe
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: VSNService - Sony Corporation - C:\Program Files\Sony\VAIO Smart Network\VSNService.exe
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: VUAgent - Sony Corporation - C:\Program Files\Sony\VAIO Update\VUAgent.exe
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 12151 bytes

Il log della scorsa settimana riguardava un altro pc ? perchè c'era Vista mentre qui c'è Seven.
C'è ancora un pò di robaccia, non hai detto che problemi ci sono, rallentamenti e pagine non richieste ?
Hai PowerOffer e troppe voci in avvio inutili.

Fai queste operazioni, vai nel pannello di controllo, apri la lista dei programmi installati, cerca PowerOffer, se c'è disinstallalo, poi bisogna disattivare dei servizi collegati, vai nel Pannello di controllo - Strumenti amministrazione> Servizi e cerca queste voci: Pos Service (PowerOffer Service), Serv Updater, fai doppio clic su ogni voce e modifica il Tipo di avvio in Disabilitato. Sempre nei servizi cerca anche Software Upd (SoftwareUpd) se lo trovi disabilita anche lui.

Chiudi tutti i programmi e disconnesso lanci HJT e clicca sul secondo pulsante: Do a system scan only poi metti la spunta alle voci che ti indico e alla fine clic su Fix checked:

O4 - HKLM\..\Run: [ISBMgr.exe] "C:\Program Files (x86)\Sony\ISB Utility\ISBMgr.exe"

O4 - HKLM\..\Run: [PosService] C:\Users\Public\Documents\AppData\PoApp\PLauncher.exe

O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"

O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware] C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent

O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun

O4 - HKCU\..\Run: [Facebook Update] "C:\Users\Alvaro.Anto\AppData\Local\Facebook\Update\FacebookUpdate.exe" /c /nocrashserver

O4 - HKCU\..\Run: [Google Update] "C:\Users\Alvaro.Anto\AppData\Local\Google\Update\GoogleUpdate.exe" /c

O4 - HKCU\..\Run: [SCheck] "C:\Users\Alvaro.Anto\AppData\Roaming\SCheck\SCheck.exe" check

O4 - HKCU\..\Run: [Intermediate] "C:\Users\Alvaro.Anto\AppData\Roaming\Intermediate\Intermediate.exe"

O4 - HKCU\..\Run: [Yontoo Desktop] "C:\Users\Alvaro.Anto\AppData\Roaming\Yontoo\YontooDesktop.exe"

Poi una bella pulizia con Ccleaner compreso il Registro, per il Registro spunta tutte le voci.
Sempre con Ccleaner vai in Strumenti>Rirpistino Sistema, seleziona tutte le voci, rimane l'ultima che non è selezionabile, poi clic su Rmuovi, ok esci e riavvia.
Così il pc dovrebbe essere a posto, se c'è qualche altro problema, dillo. Ciao