Salve. Mi sono inserito in questa discussione poiché credo di avere lo stesso problema.
Avevo saputo che bisognava dotare il mio notebook, oltre che di antivirus, di antispyware, antimalware, firewall perché non sufficiente quello di windows, etc.
Devo aver fatto un po' di pesantezza ed alcuni programmi, forse, vanno in conflitto perché per aprire una semplice pagina di Excel o qualsiasi click io faccia su qualsiasi cosa, ci vogliono dai 35 ai 247 secondi.
Ho fatto, secondo la guida di Habanero, tutte le scansioni possibili.
Questi sono i file:

Extras.Txt

OTL.Txt

e questo il file hijackthis:

Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 12.25.15, on 07/12/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
CHROME: 31.0.1650.63


Boot mode: Normal


Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\PROGRA~1\Enigma Software Group\SpyHunter\SH4Service.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Programmi\CheckPoint\ZoneAlarm\vsmon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Avira\AntiVir Desktop\sched.exe
C:\Programmi\Avira\AntiVir Desktop\avguard.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\TOSHIBA\Power Management\CeEPwrSvc.exe
C:\Programmi\TOSHIBA\ConfigFree\CFSvcs.exe
C:\WINDOWS\system32\cisvc.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\Programmi\Java\jre7\bin\jqs.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\TomTom HOME 2\TomTomHOMEService.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Avira\AntiVir Desktop\avgnt.exe
C:\Programmi\Unlocker\UnlockerAssistant.exe
C:\Programmi\File comuni\Java\Java Update\jusched.exe
C:\Programmi\CheckPoint\ZoneAlarm\zatray.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Microsoft ActiveSync\wcescomm.exe
C:\PROGRA~1\Microsoft ActiveSync\rapimgr.exe
C:\Documents and Settings\pc\Impostazioni locali\Dati applicazioni\Akamai\netsession_win.exe
C:\Documents and Settings\pc\Impostazioni locali\Dati applicazioni\Akamai\netsession_win.exe
C:\Programmi\Avira\AntiVir Desktop\avshadow.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Documents and Settings\pc\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Documents and Settings\pc\Desktop\Programmi importati\HijackThis.exe
C:\WINDOWS\system32\dwwin.exe


R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.zonealarm.com/?src=hp&...&tstsId=&ver=&
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\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1;*.local;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Zonealarm Helper Object - {2A841F7A-A014-4DA5-B6D9-8B913DFB7A8C} - C:\Programmi\Check Point Software Technologies LTD\zonealarm\1.8.22.0\bh\zonealarm.dll
O2 - BHO: dsWebAllowBHO Class - {2F85D76C-0569-466F-A488-493E6BD0E955} - C:\Programmi\Windows Desktop Search\dsWebAllow.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:\Programmi\Java\jre7\bin\ssv.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre7\bin\jp2ssv.dll
O3 - Toolbar: ZoneAlarm Security Toolbar - {438FAE3E-BDEF-44D3-AB8B-0C7C8350DF59} - C:\Programmi\Check Point Software Technologies LTD\zonealarm\1.8.22.0\zonealarmTlbr.dll
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [UnlockerAssistant] "C:\Programmi\Unlocker\UnlockerAssistant.exe"
O4 - HKLM\..\Run: [APSDaemon] "C:\Programmi\File comuni\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [ZoneAlarm] "C:\Programmi\CheckPoint\ZoneAlarm\zatray.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Programmi\Microsoft ActiveSync\wcescomm.exe"
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\pc\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [Akamai NetSession Interface] "C:\Documents and Settings\pc\Impostazioni locali\Dati applicazioni\Akamai\netsession_win.exe"
O4 - HKUS\S-1-5-21-3746504194-3368175464-857427351-1009\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe (User 'Gigi')
O4 - HKUS\S-1-5-21-3746504194-3368175464-857427351-1009\..\Run: [TOSCDSPD] C:\Programmi\TOSHIBA\TOSCDSPD\toscdspd.exe (User 'Gigi')
O4 - HKUS\S-1-5-21-3746504194-3368175464-857427351-1009\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background (User 'Gigi')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\Microsoft ActiveSync\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\Microsoft ActiveSync\INetRepl.dll
O9 - Extra 'Tools' menuitem: Crea preferiti portatile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\Microsoft ActiveSync\INetRepl.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\system32\shdocvw.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} - http://cdn.scan.onecare.live.com/res...scbase8942.cab
O16 - DPF: {6A060448-60F9-11D5-A6CD-0002B31F7455} (ExentInf Class) -
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/micr...?1358026717375
O16 - DPF: {CF84DAC5-A4F5-419E-A0BA-C01FFD71112F} (SysInfo Class) - http://systemrequirementslab.com.s3....tect_intel.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://fpdownload.macromedia.com/ge...sh/swflash.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{38CFC7A1-A247-4FEC-84AF-BDCFB24E96C6}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{4A9B06F2-F29C-47F8-A0EC-8F759DF6B833}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{6116B357-C11E-4244-88D7-85076E927A55}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{6B5F6689-C896-4802-9FB0-ACB828B16BA5}: NameServer = 8.8.8.8,8.8.4.4
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\Skype4COM.dll
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpda teService.exe
O23 - Service: Avira Pianificatore (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Real-Time Protection (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: CeEPwrSvc - COMPAL ELECTRONIC INC. - C:\Programmi\TOSHIBA\Power Management\CeEPwrSvc.exe
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Programmi\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Oracle Corporation - C:\Programmi\Java\jre7\bin\jqs.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Programmi\Skype\Updater\Updater.exe
O23 - Service: SpyHunter 4 Service - Enigma Software Group USA, LLC. - C:\PROGRA~1\Enigma Software Group\SpyHunter\SH4Service.exe
O23 - Service: TomTomHOMEService - TomTom - C:\Programmi\TomTom HOME 2\TomTomHOMEService.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Check Point Software Technologies LTD - C:\Programmi\CheckPoint\ZoneAlarm\vsmon.exe
O23 - Service: ZoneAlarm Privacy Service (ZAPrivacyService) - Check Point Software Technologies, Ltd. - C:\Programmi\CheckPoint\ZoneAlarm\ZAPrivacyService .exe


--
End of file - 10867 bytes


Grazie per quanto vorrai fare per me.

Ti aspetto.