ciao a tutti,
allego il log del notebook lenovo di mio figlio con win8 amd8 q.c. e 8gb ram con circa sei mesi di vita:

premetto che funziona bene e non si ravvisano rallentamenti o altre anomalie ( sempre controllato con cclenaer, malaw. e superantisp. e tutto ok);
volevo solo fare il punto della situazione e sapere se conviene pulire qualcosa visto che usa g.chrome
un grazie anticipato

logfile of Trend Micro HijackThis v2.0.5
Scan saved at 11:44:10, on 09/05/2015
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.9600.17416)


Boot mode: Normal

Running processes:
C:\Program Files (x86)\Spybot - Search & Destroy 2\SDTray.exe
C:\Program Files (x86)\Lenovo\PowerDVD10\PDVD10Serv.EXE
C:\Program Files\Lenovo\Lenovo Solution Center\LSCNotify.exe
C:\Users\FlavioMassimo\Desktop\utility lenovo\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://lenovo13.msn.com/?pc=LCJB
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://lenovo13.msn.com/?pc=LCJB
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: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~2\MICROS~2\Office14\GROOVEEX.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.8.0_25\bin\ssv.dll
O2 - BHO: URLRedirectionBHO - {B4F3A835-0E21-4959-BA22-42B3008E02FF} - C:\PROGRA~2\MICROS~2\Office14\URLREDIR.DLL
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre1.8.0_25\bin\jp2ssv.dll
O2 - BHO: DVDVideoSoft.WebPageAdjuster - {EE932B49-D5C0-4D19-A3DA-CE0849258DE6} - C:\Program Files (x86)\Common Files\DVDVideoSoft\bin\IEDownloadMenuAndBtns.dll
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\amd64\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [UpdateP2GShortCut] "C:\Program Files (x86)\Lenovo\Power2Go\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\Lenovo\Power2Go" UpdateWithCreateOnce "SOFTWARE\CyberLink\Power2Go\5.0"
O4 - HKLM\..\Run: [SDTray] "C:\Program Files (x86)\Spybot - Search & Destroy 2\SDTray.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [BCSSync] "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" /DelayServices
O4 - HKLM\..\Run: [FileTransferForMobileGo] C:\Program Files (x86)\Wondershare\MobileGo for Android\FileTransfer.exe
O4 - HKLM\..\Run: [Wondershare Helper Compact.exe] C:\Program Files (x86)\Common Files\Wondershare\Wondershare Helper Compact\WSHelper.exe
O4 - HKCU\..\Run: [Pokki] "%LOCALAPPDATA%\Pokki\Engine\HostAppServiceUpdater.exe" /LOGON
O4 - HKCU\..\Run: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /minimized /regrun
O4 - HKCU\..\Run: [GoogleChromeAutoLaunch_8DA6775E9C1D77206CA4EA6AFF23F27A] "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --no-startup-window
O4 - HKCU\..\Run: [GoogleDriveSync] "C:\Program Files (x86)\Google\Drive\googledrivesync.exe" /autostart
O4 - HKCU\..\Run: [SUPERAntiSpyware] C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe
O4 - HKLM\..\Policies\Explorer\Run: [BtvStack] "C:\Program Files (x86)\Bluetooth Suite\BtvStack.exe"
O4 - Global Startup: MobileGo Service.lnk = C:\Program Files (x86)\Wondershare\MobileGo for Android\MobileGoService.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~2\MICROS~2\Office14\EXCEL.EXE/3000
O8 - Extra context menu item: Free YouTube to MP3 Converter - C:\Program Files (x86)\Common Files\DVDVideoSoft\plugins\freeytmp3downloader.htm
O9 - Extra button: Free YouTube Download - {EE932B49-D5C0-4D19-A3DA-CE0849258DE6} - C:\Program Files (x86)\Common Files\DVDVideoSoft\bin\IEDownloadMenuAndBtns.dll
O9 - Extra 'Tools' menuitem: Free YouTube Download - {EE932B49-D5C0-4D19-A3DA-CE0849258DE6} - C:\Program Files (x86)\Common Files\DVDVideoSoft\bin\IEDownloadMenuAndBtns.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O18 - Filter hijack: text/xml - {807573E5-5146-11D5-A672-00B0D022E945} - C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL
O20 - Winlogon Notify: SDWinLogon - SDWinLogon.dll (file missing)
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: AtherosSvc - Windows (R) Win 7 DDK provider - C:\Program Files (x86)\Bluetooth Suite\adminservice.exe
O23 - Service: @C:\windows\system32\CxAudMsg64.exe,-100 (CxAudMsg) - Unknown owner - C:\windows\system32\CxAudMsg64.exe (file missing)
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\windows\System32\lsass.exe (file missing)
O23 - Service: Elan Service (ETDService) - ELAN Microelectronics Corp. - C:\Program Files\Elantech\ETDService.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: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\windows\system32\lsass.exe (file missing)
O23 - Service: LSCWinService - Unknown owner - C:\Program Files\Lenovo\Lenovo Solution Center\App\LSCWinService.exe
O23 - Service: LUService - Lenovo(beijing) Limited - C:\Program Files (x86)\Lenovo\Lenovo Updates\LUService.exe
O23 - Service: Maxthon Core Update Service (MaxthonUpdateSvc) - Maxthon - C:\Program Files (x86)\Maxthon\Modules\Service\Update\MaxthonUpdateSvc.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: NitroPDFDriverCreatorReadSpool8 (NitroDriverReadSpool8) - Nitro PDF Software - C:\Program Files\Common Files\Nitro\Pro\8.0\NitroPDFDriverService8x64.exe
O23 - Service: Nalpeiron Licensing Service (nlsX86cc) - Nalpeiron Ltd. - C:\windows\SysWOW64\NLSSRV32.EXE
O23 - Service: Lenovo PhoneCompanionPusher Service (PhoneCompanionPusher) - Lenovo - C:\Program Files\Lenovo PhoneCompanion\PhoneCompanionPusher.exe
O23 - Service: Lenovo PhoneCompanionVap Service (PhoneCompanionVap) - Lenovo - C:\Program Files\Lenovo PhoneCompanion\PhoneCompanionVap.exe
O23 - Service: Cyberlink RichVideo64 Service(CRVS) (RichVideo64) - Unknown owner - C:\Program Files\CyberLink\Shared files\RichVideo64.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: Conexant SmartAudio service (SAService) - Conexant Systems, Inc. - C:\windows\system32\SAsrv.exe
O23 - Service: Spybot-S&D 2 Scanner Service (SDScannerService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDFSSvc.exe
O23 - Service: Spybot-S&D 2 Updating Service (SDUpdateService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDUpdSvc.exe
O23 - Service: Spybot-S&D 2 Security Center Service (SDWSCService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDWSCSvc.exe
O23 - Service: Service_21 (Service_21.exe) - Unknown owner - C:\windows\System32\Service_21.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: tbaseprovisioning - Advanced Micro Devices, Inc. - C:\windows\SysWOW64\tbaseprovisioning.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: VeriFaceSrv - Unknown owner - C:\Program Files (x86)\Lenovo\Lenovo VeriFace Pro\VfConnectorService.exe
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)
O23 - Service: ZAtheros Bt and Wlan Coex Agent - Atheros - C:\Program Files (x86)\Bluetooth Suite\Ath_CoexAgent.exe

--
End of file - 10875 bytes

Il log è a posto, ci sarebbero delle voci inutili in Avvio e basta.
Per delle pulizie più complete, oltre a Malwarebytes, fai queste 2 scansioni:
Scarica Adwcleaner sul desktop:
http://general-changelog-team.fr/fr/downloads/finish/20-outils-de-xplode/2-adwcleaner
Per il download cliccare alla destra 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.

Scarica Junkware Removal Tool sul desktop.
http://download.html.it/software/junkware-removal-tool/?utm_source%20651
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.
Ciao

Le voci in avvio inutili, non dannose, sono le seguenti:

O4 - HKLM\..\Run: [UpdateP2GShortCut] "C:\Program Files (x86)\Lenovo\Power2Go\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\Lenovo\Power2Go" UpdateWithCreateOnce "SOFTWARE\CyberLink\Power2Go\5.0"

O4 - HKCU\..\Run: [Pokki] "%LOCALAPPDATA%\Pokki\Engine\HostAppServiceUpdater.exe" /LOGON

O4 - HKCU\..\Run: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /minimized /regrun

O4 - HKCU\..\Run: [GoogleChromeAutoLaunch_8DA6775E9C1D77206CA4EA6AFF23F27A] "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --no-startup-window

O4 - HKCU\..\Run: [GoogleDriveSync] "C:\Program Files (x86)\Google\Drive\googledrivesync.exe" /autostart

I programmi non vengono toccati ma viene disattivato solo l'avvio automatico.

Le toolbar sono solitamente inutili, ADW e JRT sono dei pulitori di file inutili, adware e dirottatori vari comprese alcune toolbar che inviano pubblicità e altro.
Le pulizie come quelle con Ccleaner servono a mantenere il pc più veloce.
Operazioni da fare a propria discrezione, i programmi sono tutti validi e non creano problemi, questo è solo un consiglio.
Ciao