come da suggerimenti avuti in un altra richiesta di oggi per lentezza apertura programmi vari metto
il log da verificare
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 20.20.35, on 24/03/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Creative\Shared Files\CTAudSvc.exe
C:\Programmi\SUPERAntiSpyware\SASCORE.EXE
C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\WINDOWS\system32\CTsvcCDA.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programmi\Norton Internet Security\Engine\19.6.1.8\ccSvcHst.exe
C:\WINDOWS\system32\IoctlSvc.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Creative\Sound Blaster X-Fi Surround 5.1\Volume Panel\VolPanlu.exe
C:\Programmi\File comuni\Java\Java Update\jusched.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
C:\Documents and Settings\All Users\Dati applicazioni\U3\U3Launcher\LaunchU3.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\Programmi\Norton Internet Security\Engine\19.6.1.8\ccSvcHst.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
E:\LiberKey\LiberKeyTools\LiberKeyPortabilizer\LiberKeyPortabilizer.exe
E:\LiberKey\Apps\Speccy\App\Speccy\Speccy.exe
C:\Documents and Settings\utente\Desktop\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.virgilio.it/
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Norton Identity Protection - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - C:\Programmi\Norton Internet Security\Engine\19.6.1.8\coIEPlg.dll
O2 - BHO: Norton Vulnerability Protection - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Programmi\Norton Internet Security\Engine\19.6.1.8\IPS\IPSBHO.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Programmi\Norton Internet Security\Engine\19.6.1.8\coIEPlg.dll
O4 - HKLM\..\Run: [VolPanel] "C:\Programmi\Creative\Sound Blaster X-Fi Surround 5.1\Volume Panel\VolPanlu.exe" /r
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [APSDaemon] "C:\Programmi\File comuni\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
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')
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: LaunchU3.exe.lnk = ?
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
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:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O20 - Winlogon Notify: !SASWinLogon - C:\Programmi\SUPERAntiSpyware\SASWINLO.DLL
O20 - Winlogon Notify: Antiwpa - antiwpa.dll (file missing)
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: SAS Core Service (!SASCORE) - SUPERAntiSpyware.com - C:\Programmi\SUPERAntiSpyware\SASCORE.EXE
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Creative Audio Engine Licensing Service - Creative Labs - C:\Programmi\File comuni\Creative Labs Shared\Service\CTAELicensing.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: Creative Audio Service (CTAudSvcService) - Creative Technology Ltd - C:\Programmi\Creative\Shared Files\CTAudSvc.exe
O23 - Service: Servizio 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) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: NBService - Nero AG - C:\Programmi\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Norton Internet Security (NIS) - Symantec Corporation - C:\Programmi\Norton Internet Security\Engine\19.6.1.8\ccSvcHst.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Ahead\Lib\NMIndexingService.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\WINDOWS\system32\IoctlSvc.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe

--
End of file - 7529 bytes
grazie gia' da adesso

Il log è pulito.
Fai un ripristino configurazione di sistema a una data antecedente il sorgere del problema.

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le tool bar di norton sono safe web e identity safe installate dall'antivirus medesimo e per quelli da disattivare sono pronto per
le istruzioni
ciao e grazie

come quelle in 02 non accennavi ai programmi in avvio le 04?

Chiudi i programmi e disconnesso fixa ed elimina le seguenti voci:

O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Programmi\Norton Internet Security\Engine\19.6.1.8\coIEPlg.dll
O4 - HKLM\..\Run: [VolPanel] "C:\Programmi\Creative\Sound Blaster X-Fi Surround 5.1\Volume Panel\VolPanlu.exe" /r
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [APSDaemon] "C:\Programmi\File comuni\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: LaunchU3.exe.lnk = ?
O20 - Winlogon Notify: Antiwpa - antiwpa.dll (file missing)

Poi fai una pulizia con Ccleaner compreso il registro, per il registro spunta tutte le voci.
Vai in C:\windows, cerca la cartella Prefetch e la svuoti completamente, non eliminare la cartella.
Fai sapere se migliora.
Ciao

Si dalla scheda avvio si possono disattivare. Da HJT si vede meglio.
Bisogna capire cosa rallenta l'apertura dei programmi, dal log non si vede niente di anomalo.
Installa malwarebytes QUI lo aggiorni e poi fai una scansione COMPLETA non veloce, elimina quello che trova.
Fai una pulizia con Ccleaner compreso il registro.

OK a questo punto non ho altro da aggiungere.