Chiedo cortesemente di controllare il seguente file log del programma HijackThis. Ho infatti riscontrato nell'ultimo periodo un rallentamento del computer e l'impossibilità ,in alcuni casi,di aprire programmi da sempre usati. Ho seguito le istruzioni del forum e spero che mi possiate aiutare.Ringrazio anticipamente.

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 13.26.34, on 15/09/2011
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18639)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
C:\Program Files\Acer\Acer PowerSmart Manager\ePowerTray.exe
C:\Windows\System32\igfxtray.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Windows\PLFSetI.exe
C:\ProgramData\Anti-phishing Domain Advisor\visicom_antiphishing.exe
C:\Program Files\AVG\AVG9\avgtray.exe
C:\Program Files\HP\HP Software Update\hpwuschd2.exe
C:\Program Files\RocketDock\RocketDock.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Users\matteo\AppData\Local\Temp\RtkBtMnt.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Common Files\Adobe\Updater6\Adobe_Updater.exe
C:\Windows\system32\wuauclt.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Users\Public\Documents\PowerOffer\POService.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://search.findeer.com/
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://homepage.acer.com/rdr.aspx?b=ACAW&l=0410&s=2&o=vp32&d=0910&m=acrprdct
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_printenhancer.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: PowerOffer - {3543619C-D563-43f7-95EA-4DA7E1CC396A} - C:\Users\Public\Documents\PowerOffer\PowerOfferBHO.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:\Program Files\Microsoft\Search Enhancement Pack\Search Helper\SearchHelper.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - C:\Program Files\Common Files\McAfee\SystemCore\ScriptSn.20100919103108.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.7.6406.1642\swg.dll
O2 - BHO: (no name) - {DBC80044-A445-435b-BC74-9C25C1C588A9} - (no file)
O2 - BHO: Windows Live Toolbar Helper - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - C:\Program Files\Windows Live\Toolbar\wltcore.dll
O2 - BHO: Yontoo Layers - {FD72061E-9FDE-484D-A58A-0BAB4151CAD8} - C:\Program Files\Yontoo Layers Runtime\YontooIEClient.dll
O2 - BHO: HP Smart BHO Class - {FFFFFFFF-CF4E-4F2B-BDC2-0E72E116A856} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O3 - Toolbar: (no name) - {0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064} - (no file)
O3 - Toolbar: &Windows Live Toolbar - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - C:\Program Files\Windows Live\Toolbar\wltcore.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
O4 - HKLM\..\Run: [Acer ePower Management] C:\Program Files\Acer\Acer PowerSmart Manager\ePowerTray.exe
O4 - HKLM\..\Run: [mwlDaemon] C:\Program Files\EgisTec\MyWinLocker 3\x86\mwlDaemon.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [IgfxTray] C:\Windows\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\Windows\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\Windows\system32\igfxpers.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [PLFSetI] C:\Windows\PLFSetI.exe
O4 - HKLM\..\Run: [Anti-phishing Domain Advisor] "C:\ProgramData\Anti-phishing Domain Advisor\visicom_antiphishing.exe"
O4 - HKLM\..\Run: [Malwarebytes' Anti-Malware (reboot)] "C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe" /runcleanupscript
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\RunOnce: [SpybotSnD] "C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe" /autocheck
O4 - HKCU\..\Run: [RocketDock] "C:\Program Files\RocketDock\RocketDock.exe"
O4 - HKCU\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKCU\..\Run: [Google Update] "C:\Users\matteo\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_70C5B381380DB17F.dll/cmsidewiki.html
O8 - Extra context menu item: Invia immagine alla periferica &Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O8 - Extra context menu item: Invia pagina alla periferica &Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O8 - Extra context menu item: Scarica con Mipony - file://C:\Program Files\MiPony\Browser\IEContext.htm
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Click to call with Skype - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra 'Tools' menuitem: Click to call with Skype - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: Visualizza o nasconde HP Smart Web Printing - {DDE87865-83C5-48c4-8357-2F5B1AA84522} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\Program Files\Acer\Acer VCM\Skype4COM.dll
O20 - AppInit_DLLs: C:\PROGRA~1\WI0498~1\Datamngr\datamngr.dll, C:\PROGRA~1\WI0498~1\Datamngr\IEBHO.dll, avgrsstx.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
O23 - Service: AVG WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: FABS - Helping agent for MAGIX media database (Fabs) - MAGIX AG - C:\Program Files\Common Files\MAGIX Services\Database\bin\FABS.exe
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Program Files\Common Files\MAGIX Services\Database\bin\fbserver.exe
O23 - Service: McShield - Unknown owner - C:\Program Files\Common Files\McAfee\SystemCore\\mcshield.exe
O23 - Service: NTI IScheduleSvc - Unknown owner - C:\Program Files\NewTech Infosystems\Acer Backup Manager\IScheduleSvc.exe (file missing)
O23 - Service: NTI Backup Now 5 Backup Service (NTIBackupSvc) - NewTech InfoSystems, Inc. - C:\Program Files\NewTech Infosystems\NTI Backup Now 5\BackupSvc.exe
O23 - Service: NTI Backup Now 5 Scheduler Service (NTISchedulerSvc) - Unknown owner - C:\Program Files\NewTech Infosystems\NTI Backup Now 5\SchedulerSvc.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: Office Source Engine (ose) - Unknown owner - C:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE
O23 - Service: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files\Spybot - Search & Destroy\SDWinSec.exe

--
End of file - 10343 bytes

ciao

quali sono i programmi che non riesci ad aprire ? ricorda di installare quanto prima il S.P.2 per la sicurezza del tuo pc


fai questa scansione vediamo cosa viene fuori

scarica malwarebytes

1) lo installi
2) lo aggiorni
3) fai una scansione scegliendo la modalità completa
A scansione completa, fai clic su OK => Mostra i Risultati.
Assicurarti che tutto sia selezionato e clicca clic su Rimuovi selezionati.
Se ti chiede di riavviare, riavvia per completare il processo di pulizia.
Posta il rapporto .

Ciao.
Si vede che il pc è trascurato.....
Oltre al consiglio di Shapiro, (che è importante) dovresti anche cambiare versione all'antivirus. (AVG9 è obsoleto)
Disattivare il Tea Timer di SpyBot in questo modo: (oltre a non servire a niente, crea problemi con altri software in tempo reale)

Apri SpyBot in modalità avanzata (menù modalità - avanzata) poi vai in utilità - resident e togli la spunta a TeaTimer, e riavvia il pc.


Hai provato a fare una disistallazione corretta di ambebue, e poi una reistallazione?