Eccomi qua. Di seguito vi invio il log di Hijack This. Ciao, jjmmy

Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 15.13.05, on 02/09/2016
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.10586.0545)

FIREFOX: 48.0.2 (x86 it)
Boot mode: Normal

Running processes:
C:\WINDOWS\SysWOW64\rundll32.exe
C:\Program Files (x86)\Everyday Auto Backup\AutoBackup.exe
C:\Users\PC\AppData\Local\Microsoft\OneDrive\OneDrive.exe
C:\Program Files (x86)\IObit\Advanced SystemCare\ASCTray.exe
C:\Windows\Samsung\PanelMgr\SSMMgr.exe
C:\Program Files (x86)\Logitech\LWS\Webcam Software\LWS.exe
C:\Program Files (x86)\Common Files\Freemake Shared\ProductUpdater\ProductUpdater.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\Logitech\LWS\Webcam Software\CameraHelperShell.exe
C:\Program Files\WindowsApps\Microsoft.Messaging_2.15.20002.0_x86__8wekyb3d8bbwe\SkypeHost.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Microsoft Office\Office12\OUTLOOK.EXE
C:\Users\PC\AppData\Local\Temp\7zOF533.tmp\HijackThis.exe

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 = https://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 =
O2 - BHO: PDF Architect 3 Helper - {06E08260-0695-4EC1-A74B-1310D8899D93} - C:\Program Files (x86)\PDF Architect 3\creator-ie-helper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.8.0_101\bin\ssv.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre1.8.0_101\bin\jp2ssv.dll
O3 - Toolbar: PDF Architect 3 Toolbar - {2DFF3579-5AA7-45B9-9328-1D38EA230861} - C:\Program Files (x86)\PDF Architect 3\creator-ie-plugin.dll
O4 - HKLM\..\Run: [Samsung PanelMgr] C:\WINDOWS\Samsung\PanelMgr\ssmmgr.exe /autorun
O4 - HKLM\..\Run: [LWS] C:\Program Files (x86)\Logitech\LWS\Webcam Software\LWS.exe -hide
O4 - HKLM\..\Run: [ProductUpdater] C:\Program Files (x86)\Common Files\Freemake Shared\ProductUpdater\ProductUpdater.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [Everyday Auto Backup] "C:\Program Files (x86)\Everyday Auto Backup\AutoBackup.exe" /1
O4 - HKCU\..\Run: [OneDrive] "C:\Users\PC\AppData\Local\Microsoft\OneDrive\OneDrive.exe" /background
O4 - HKCU\..\Run: [CCleaner Monitoring] "C:\Program Files\CCleaner\CCleaner64.exe" /MONITOR
O4 - HKCU\..\Run: [GarminExpressTrayApp] "C:\Program Files (x86)\Garmin\Express Tray\ExpressTray.exe"
O4 - HKCU\..\Run: [Advanced SystemCare 9] "C:\Program Files (x86)\IObit\Advanced SystemCare\ASCTray.exe" /Auto
O4 - HKUS\S-1-5-18\..\Run: [GarminExpressTrayApp] "C:\Program Files (x86)\Garmin\Express Tray\ExpressTray.exe" (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [GarminExpressTrayApp] "C:\Program Files (x86)\Garmin\Express Tray\ExpressTray.exe" (User 'Default user')
O4 - Global Startup: MimioStudio.lnk = C:\Program Files (x86)\mimio\MimioStudio\mimiosys.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE/3000
O9 - Extra button: Skype Click to Call settings - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~2\Office12\REFIEBAR.DLL
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O15 - Trusted Zone: http://help.eset.com (HKLM)
O15 - ESC Trusted Zone: http://help.eset.com (HKLM)
O16 - DPF: Garmin Communicator Plug-In - https://static.garmincdn.com/gcp/ie/4.2.0.0/GarminAxControl_32.CAB
O18 - Protocol: skypec2c - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O18 - Protocol: tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O18 - Protocol: windows.tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Advanced SystemCare Service 9 (AdvancedSystemCareService9) - IObit - C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\WINDOWS\System32\alg.exe (file missing)
O23 - Service: AtherosSvc - Unknown owner - C:\WINDOWS\system32\AdminService.exe (file missing)
O23 - Service: Intel(R) Content Protection HECI Service (cphs) - Intel Corporation - C:\WINDOWS\SysWow64\IntelCpHeciSvc.exe
O23 - Service: @%SystemRoot%\system32\DiagSvcs\DiagnosticsHub.StandardCollector.ServiceRes.dll,-1000 (diagnosticshub.standardcollector.service) - Unknown owner - C:\WINDOWS\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe (file missing)
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: ESET Service (ekrn) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\ekrn.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\WINDOWS\system32\fxssvc.exe (file missing)
O23 - Service: Freemake Improver - Freemake - C:\ProgramData\Freemake\FreemakeUtilsService\FreemakeUtilsService.exe
O23 - Service: Garmin Device Interaction Service - Garmin Ltd. or its subsidiaries - C:\Program Files (x86)\Garmin\Device Interaction Service\GarminService.exe
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: Intel(R) Integrated Clock Controller Service - Intel(R) ICCS (ICCS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Integrated Clock Controller Service\ICCProxy.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\WINDOWS\system32\IEEtwCollector.exe (file missing)
O23 - Service: Intel(R) HD Graphics Control Panel Service (igfxCUIService1.0.0.0) - Unknown owner - C:\WINDOWS\system32\igfxCUIService.exe (file missing)
O23 - Service: Intel(R) Capability Licensing Service Interface - Intel(R) Corporation - C:\Program Files\Intel\iCLS Client\HeciServer.exe
O23 - Service: Intel(R) Capability Licensing Service TCP IP Interface - Intel(R) Corporation - C:\Program Files\Intel\iCLS Client\SocketHeciServer.exe
O23 - Service: Intel(R) Dynamic Application Loader Host Interface Service (jhi_service) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL\jhi_service.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: LiveUpdate (LiveUpdateSvc) - IObit - C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
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: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.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: PDF Architect 3 - pdfforge GmbH - C:\Program Files (x86)\PDF Architect 3\ws.exe
O23 - Service: PDF Architect 3 CrashHandler - pdfforge GmbH - C:\Program Files (x86)\PDF Architect 3\crash-handler-ws.exe
O23 - Service: PDF Architect 3 Creator - pdfforge GmbH - C:\Program Files (x86)\PDF Architect 3\creator-ws.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: @%SystemRoot%\system32\SensorDataService.exe,-101 (SensorDataService) - Unknown owner - C:\WINDOWS\System32\SensorDataService.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: @%SystemRoot%\system32\TieringEngineService.exe,-702 (TieringEngineService) - Unknown owner - C:\WINDOWS\system32\TieringEngineService.exe (file missing)
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)

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End of file - 11657 bytes

Bel log, ma il problema qual'è ?