allor non so se è la sezione adatta ma la scrivo cmq.. (la faccio breve) x 2 anni ho avuto un portatile windows vista dopo un anneto ho cominciato ad avere problemi.. l'antivirus non mi ha mai segnalato nulla! cmq i problemi erano rallentamento pc,blocchi,accensioni molto lente, broswer internet lentissimo, tutti i programmi e applicazioni si bloccano a momenti e mi dice il programma non risponde e via via ... allora ho ca mbiato una marea d antivirus e mi dice ke il pc non ha virus e altro ho provato ad ripristinarlo e nulla ho provato programmi x il registro sistema ecc ecc e niente. quindi avendo una garanzia pc in city ho kiamato all'assistenza se lo sono ritirati non si è potuto riparare e me l'hanno sostituito con un acer molto + superiore d quello ke avevo con un windows 7 allora dopo un mese e mezzo ha già iniziato a farmi lo stesso problema dopo ke io ho fatto uno sbaglio avevo le canzoni e qualke video in una memory card del vekkio pc prima d copiarli sul nuovo portatile feci la scansione e non cerano state segnalazioni d virus ecc quindi feci questo passaggio tranquillo.. cmq sta il fatto ke mi sta facendo lo stesso problema e non so ke fare ke mi consigliate d fare? cè qualke programma ke mi aiuti a risolvere il mio problema? grazie in anticipo x le vostre risposte!

la sezione è giusta è ke ho spostato la discussione... aiutatemi questo pc ha quasi 2 mesi d vita è se passa ancora tempo lo si deve buttare come il primo...

il problema e ke io non sono un esperto x queste cose e non saprei come fare...

ok grazie lo faro x adesso ho scaricato l'antivirus ke mi ha consigliato Rosselli e sto facendo la scansione vediamo cosa esce...

non capisco ho fatto la scansione con hijack poi faccio save log ma non me lo salva mi da dei messaggi d errore... come mai? cosa puo essere? premetto ke non ho disattivato il ripristino...

il mio è windows 7 mi sembra ke la prova con amministratore l'ho fatta, ora riprovo..

c sono riuscito ecco il mio log! perfavore a chi d competenza dategli un'occhiata! Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 16:34:04, on 31/05/2010
Platform: Windows 7 (WinNT 6.00.3504)
MSIE: Internet Explorer v8.00 (8.00.7600.16385)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Kodak\KODAK Share Button App\Listener.exe
C:\Program Files (x86)\Intel\Intel Matrix Storage Manager\IAAnotif.exe
C:\Program Files (x86)\EgisTec\MyWinLocker 3\x86\mwlDaemon.exe
C:\Windows\PLFSetI.exe
C:\Program Files (x86)\NewTech Infosystems\Acer Backup Manager\BackupManagerTray.exe
C:\Program Files (x86)\EgisTec Egis Software Update\EgisUpdate.exe
C:\Program Files (x86)\Launch Manager\LManager.exe
C:\Program Files (x86)\Acer Arcade Deluxe\Acer Arcade Deluxe\ArcadeDeluxeAgent.exe
C:\Program Files (x86)\Acer Arcade Deluxe\PlayMovie\PMVService.exe
C:\Program Files (x86)\ONDA Connection Manager\StartUpTool.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\ONDA Connection Manager\UIMain.exe
C:\Program Files (x86)\eMule\emule.exe
C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe
C:\Program Files (x86)\Windows Live\Contacts\wlcomm.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbarUser_32.exe
C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Windows\SysWow64\Macromed\Flash\FlashUtil10e.exe
C:\Program Files (x86)\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&m=aspire_5738&r=27360410d316l0378z195t48k1v466
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&m=aspire_5738&r=27360410d316l0378z195t48k1v466
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://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&m=aspire_5738&r=27360410d316l0378z195t48k1v466
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
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: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.5.4723.1820\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [NortonOnlineBackupReminder] "C:\Program Files (x86)\Symantec\Norton Online Backup\Activation\NobuActivation.exe" UNATTENDED
O4 - HKLM\..\Run: [BackupManagerTray] "C:\Program Files (x86)\NewTech Infosystems\Acer Backup Manager\BackupManagerTray.exe" -h -k
O4 - HKLM\..\Run: [EgisTecLiveUpdate] "C:\Program Files (x86)\EgisTec Egis Software Update\EgisUpdate.exe"
O4 - HKLM\..\Run: [LManager] C:\Program Files (x86)\Launch Manager\LManager.exe
O4 - HKLM\..\Run: [ArcadeDeluxeAgent] "C:\Program Files (x86)\Acer Arcade Deluxe\Acer Arcade Deluxe\ArcadeDeluxeAgent.exe"
O4 - HKLM\..\Run: [PlayMovie] "C:\Program Files (x86)\Acer Arcade Deluxe\PlayMovie\PMVService.exe"
O4 - HKLM\..\Run: [StartUpTool] C:\Program Files (x86)\ONDA Connection Manager\StartUpTool.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\RunOnce: [{054A0513-3E59-4c06-B932-D5A2EBF46C55}] "C:\ProgramData\Google\Google Toolbar\Update\gtbB78E.tmp.exe" /au /sid:S-1-5-21-1727888911-2616113461-389514734-1000 /q /child
O4 - HKCU\..\Run: [swg] "C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [DelayShred] c:\progra~2\mcafee\mshr\ShrCL.EXE /P7 /q c:\users\alex\appdata\local\temp\is-UJMD7.SH! c:\users\alex\appdata\local\temp\is-D860I.SH! c:\users\alex\appdata\local\temp\is-AAEG6.SH! c:\users\alex\appdata\local\temp\Low\GOOGLE~1.SH! (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [DelayShred] c:\progra~2\mcafee\mshr\ShrCL.EXE /P7 /q c:\users\alex\appdata\local\temp\is-UJMD7.SH! c:\users\alex\appdata\local\temp\is-D860I.SH! c:\users\alex\appdata\local\temp\is-AAEG6.SH! c:\users\alex\appdata\local\temp\Low\GOOGLE~1.SH! (User 'Default user')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~2\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files (x86)\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_96D6FF0C6D236BF8.dll/cmsidewiki.html
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~2\Office12\REFIEBAR.DLL
O16 - DPF: {8100D56A-5661-482C-BEE8-AFECE305D968} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2009.07.28_v5.5.8.1/FacebookPhotoUploader55.cab
O16 - DPF: {C345E174-3E87-4F41-A01C-B066A90A49B4} (WRC Class) - http://trial.trymicrosoftoffice.com/trialoaa/buymsoffice_assets/framework/microsoft/wrc32.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{8468EC08-F09C-4D55-84A4-D57436F9E56E}: NameServer = 193.70.152.25 193.70.192.25
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - LSI Corporation - C:\Program Files\LSI SoftModem\agr64svc.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: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: Acer ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\Acer\Acer ePower Management\ePowerSvc.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: GRegService (Greg_Service) - Acer Incorporated - C:\Program Files (x86)\Acer\Registration\GregHSRW.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files (x86)\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: MyWinLocker Service (MWLService) - Egis Technology Inc. - C:\Program Files (x86)\EgisTec\MyWinLocker 3\x86\\MWLService.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NTI IScheduleSvc - NewTech Infosystems, Inc. - C:\Program Files (x86)\NewTech Infosystems\Acer Backup Manager\IScheduleSvc.exe
O23 - Service: NTI Backup Now 5 Backup Service (NTIBackupSvc) - NewTech InfoSystems, Inc. - C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\BackupSvc.exe
O23 - Service: NTI Backup Now 5 Scheduler Service (NTISchedulerSvc) - NewTech Infosystems, Inc. - C:\Program Files (x86)\NewTech Infosystems\NTI Backup Now 5\SchedulerSvc.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
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\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\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Updater Service - Acer - C:\Program Files\Acer\Acer Updater\UpdaterService.exe
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: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: Servizio di condivisione in rete Windows Media Player (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 11520 bytes

si è a 64 bit già l'ho fatta la scansione con malwarebytes e non cerano file infetti!

analizzare un log di hijack su un sistema a 64bit è una cosa che io non mi sento assolutamente di fare,e do consigli solo quando sono certo che non possano fare danni,comunque se pensi che il comportamento del tuo pc possa essere imputato a qualche infezione puoi fare una scansione online a questo indirizzo...mi spiace di non poterti essere piu' utile...
http://housecall.trendmicro.com/it/

Help my please!!!!!!!