ciao a tutti,
chiedo cortesemente il controllo del log che ho preparato con il pgr Hijackthis
ringrazio e saluto

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 23.24.51, on 29/07/2015
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.9600.17840)
Boot mode: Normal

Running processes:
C:\WINDOWS\syswow64\wwahost.exe
C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe
C:\Program Files (x86)\AVG\AVG2015\avgui.exe
C:\WINDOWS\SysWOW64\ctfmon.exe
C:\Program Files (x86)\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://acer13.msn.com
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://www.google.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
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://go.microsoft.com/fwlink/p/?LinkId=255141
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: Skype for Business Click to Call BHO - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office 15\root\Office15\OCHelper.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: McAfee SiteAdvisor BHO - {B164E929-A1B6-4A06-B104-2CD0E90A88FF} - c:\PROGRA~2\mcafee\SITEAD~1\mcieplg.dll
O2 - BHO: Microsoft SkyDrive Pro Browser Helper - {D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF} - C:\Program Files\Microsoft Office 15\root\Office15\GROOVEEX.DLL
O3 - Toolbar: McAfee SiteAdvisor Toolbar - {0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064} - c:\PROGRA~2\mcafee\SITEAD~1\mcieplg.dll
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\amd64\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [AVG_UI] "C:\Program Files (x86)\AVG\AVG2015\avgui.exe" /TRAYONLY
O4 - HKCU\..\Run: [Spotify Web Helper] "C:\Program Files (x86)\Spotify\Data\SpotifyWebHelper.exe"
O4 - HKCU\..\Run: [uTorrent] "C:\Users\ANNINA\AppData\Roaming\uTorrent\uTorrent.exe" /MINIMIZED
O4 - HKCU\..\Run: [TomTomHOME.exe] "C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe"
O4 - HKCU\..\Run: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /minimized /regrun
O4 - HKLM\..\Policies\Explorer\Run: [BtvStack] "C:\Program Files (x86)\Qualcomm Atheros\Bluetooth Suite\BtvStack.exe"
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\Program Files\Microsoft Office 15\Root\Office15\EXCEL.EXE/3000
O8 - Extra context menu item: Se&nd to OneNote - res://C:\Program Files\Microsoft Office 15\Root\Office15\ONBttnIE.dll/105
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\Microsoft Office 15\root\Office15\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: Se&nd to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\Microsoft Office 15\root\Office15\ONBttnIE.dll
O9 - Extra button: Skype for Business Click to Call - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office 15\root\Office15\OCHelper.dll
O9 - Extra 'Tools' menuitem: Skype for Business Click to Call - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office 15\root\Office15\OCHelper.dll
O9 - Extra button: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\Microsoft Office 15\root\Office15\ONBttnIELinkedNotes.dll
O9 - Extra 'Tools' menuitem: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\Microsoft Office 15\root\Office15\ONBttnIELinkedNotes.dll
O9 - Extra button: Skype Click to Call settings - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O18 - Protocol: dssrequest - {5513F07E-936B-4E52-9B00-067394E91CC5} - c:\PROGRA~2\mcafee\SITEAD~1\mcieplg.dll
O18 - Protocol: osf - {D924BDC6-C83A-4BD5-90D0-095128A113D1} - C:\Program Files\Microsoft Office 15\root\Office15\MSOSB.DLL
O18 - Protocol: sacore - {5513F07E-936B-4E52-9B00-067394E91CC5} - c:\PROGRA~2\mcafee\SITEAD~1\mcieplg.dll
O18 - Protocol: skypec2c - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O23 - Service: SAS Core Service (!SASCORE) - SUPERAntiSpyware.com - C:\Program Files\SUPERAntiSpyware\SASCORE64.EXE
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\WINDOWS\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\WINDOWS\system32\atiesrxx.exe (file missing)
O23 - Service: AMD FUEL Service - Advanced Micro Devices, Inc. - C:\Program Files\ATI Technologies\ATI.ACE\Fuel\Fuel.Service.exe
O23 - Service: Apple Mobile Device Service - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: AtherosSvc - Qualcomm Atheros Commnucations - C:\Program Files (x86)\Qualcomm Atheros\Bluetooth Suite\adminservice.exe
O23 - Service: AVGIDSAgent - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2015\avgidsagent.exe
O23 - Service: AVG WatchDog (avgwd) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2015\avgwdsvc.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: CCDMonitorService - Acer Incorporated - C:\Program Files (x86)\Acer\Acer Cloud\CCDMonitorService.exe
O23 - Service: Device Fast-lane Service (DeviceFastLaneService) - Acer Incorporated - C:\Program Files\Acer\Acer Device Fast-lane\DeviceFastLaneSvc.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\Acer\Acer Power Management\ePowerSvc.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\WINDOWS\system32\fxssvc.exe (file missing)
O23 - Service: Servizio 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: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\WINDOWS\system32\IEEtwCollector.exe (file missing)
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Launch Manager Service (LMSvc) - Acer Incorporate - C:\Program Files\Acer\Acer Launch Manager\LMSvc.exe
O23 - Service: MBAMScheduler - Malwarebytes Corporation - C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamscheduler.exe
O23 - Service: MBAMService - Malwarebytes Corporation - C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamservice.exe
O23 - Service: McAfee SiteAdvisor Service - McAfee, Inc. - C:\Program Files\Common Files\McAfee\McSvcHost\McSvHost.exe
O23 - Service: McAfee Application Statistics Service (MfeASUM) - McAfee, Inc. - C:\Program Files\McAfee\AppStats\MfeASUM.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\WINDOWS\System32\msdtc.exe (file missing)
O23 - Service: Nero Update (NAUpdate) - Nero AG - c:\Program Files (x86)\Nero\Update\NASvc.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Norton Online Backup (NOBU) - Symantec Corporation - C:\Program Files (x86)\Symantec\Norton Online Backup\NOBuAgent.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\WINDOWS\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
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: @%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: TomTomHOMEService - TomTom - C:\Program Files (x86)\TomTom HOME 2\TomTomHOMEService.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\WINDOWS\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\WINDOWS\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\WINDOWS\system32\vssvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\WINDOWS\system32\wbengine.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-320 (WdNisSvc) - Unknown owner - C:\Program Files (x86)\Windows Defender\NisSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-310 (WinDefend) - Unknown owner - C:\Program Files (x86)\Windows Defender\MsMpEng.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 - 10548 bytes

Sarebbe sempre meglio dire se il pc ha dei problemi, comunque dal log non emerge niente di pericoloso, ci sarebbero delle voci in avvio inutili, questa ti consiglio di toglierla:
O4 - HKCU\..\Run: [uTorrent] "C:\Users\ANNINA\AppData\Roaming\uTorrent\uTorrent.exe" /MINIMIZED

Se hai dei rallentamenti o reindirizzamenti, fai queste scansioni:
Scarica ed installa MalwareBytes: clicca qui per il download: http://it.malwarebytes.org/
Clicca su: scarica la versione Gratuita alla sinistra, nella finestra che appare clic su Salva file,
poi per installarlo clic su: mbam-setup.exe
Alla fine dell'installazione nell’ultima schermata deseleziona la voce Attiva la prova gratuita di Malwarebytes Anti-Malware Pro.
Se il sw è in inglese, vai nella scheda Settings e seleziona la voce Italian dal menu a tendina Language per tradurre il programma in italiano.
Prima di fare la scansione AGGIORNALO. (è molto importante)
Poi clic su SCANSIONE seleziona la voce scansione di minaccia
Elimina gli eventuali file infetti trovati. (li devi selezionare, e poi cliccare su "Rimuovi selezionati")
Posta il log.

Scarica Adwcleaner sul desktop:
http://dw2.it.uptodown.com/dw/1435411607/a94c018f502a4aea50c76175543cf32ee028bd97/adwcleaner-4-207-multi-win.exe
Per il download cliccare su: Download now
Chiudi tutti i browser (è importante IE,Firefox Chrome ecc...)
Clicca sul pulsante "Scan".
Finita la scansione clicca su "Clean"
Conferma con OK le varie finestre che ti compariranno.
Il pc si riavvierà, e uscirà il log con le eliminazioni.
Postalo qui.

Scarica Junkware Removal Tool sul desktop.
http://thisisudax.org/downloads/JRT.exe
Il download dovrebbe partire entro 5 secondi
Disattiva temporaneamente l'antivirus per evitare potenziali conflitti.
Doppio click su JRT
Lo strumento si aprirà e avvierà la scansione del sistema.
Devi avere pazienza in quanto questo tool può richiedere del tempo per completare la scansione .
Al termine, un log (JRT.txt) viene salvato sul desktop e si aprirà automaticamente.
Postalo qui.

Ciao