Esegui 
Tutte le ricerche effettuate con google (su nomi di file ecc.) mi rimandano a questo forum di conseguenza mi sono iscritto per poter avere un Vostro aiuto diretto.
Il mio problema è stato causato da me (purtroppo) durante la reinstallazione di alcuni programmi in seguito ad una formattazione, ho erroneamente installato un programma (preso da Emule) infetto!!!
Sono riuscito a togliere il virus Beagle individuato e rimosso con Hijack (seguendo i Vostri aiuti nel forum) che era il virus da me installato, questo però mi apriva explorer collegandosi a dei siti (Service... non ricordo bene) e scaricando altri amici, naturalmente antivirus, anti spyware e firewall sono stati disattivati e non era possibile attivarli, ed altri svariati problemini che non stò nemmeno ad elencare!
In sostanza credo di essere arrivato ad un buon punto, per le mie capacità, ma ora deve esserci ancora qualche problema che non riesco ad individuare che mi causa ancora notevoli rallentamenti del sistema.
Segue logfile hijack grazie anticipato per qualsiasi aiuto
Logfile of HijackThis v1.99.1
Scan saved at 9.59.49, on 23/08/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16512)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\NVIDIA Corporation\NvMixer\NVMixerTray.exe
C:\Programmi\Logitech\iTouch\iTouch.exe
C:\Programmi\Elaborate Bytes\VirtualCloneDrive\VCDDaemon.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe
C:\Programmi\Logitech\MouseWare\system\em_exec.exe
C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\Grisoft\AVG7\avgfwsrv.exe
C:\WINDOWS\system32\fxssvc.exe
C:\WINDOWS\system32\WgaTray.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
L:\Programmi\Emule v0.48a\eMule0.48a\emule.exe
C:\WINDOWS\system32\taskmgr.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\rundll32.exe
C:\Programmi\HijackThis\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.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 - 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
O4 - HKLM\..\Run: [NVMixerTray] "C:\Programmi\NVIDIA Corporation\NvMixer\NVMixerTray.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Programmi\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [VirtualCloneDrive] "C:\Programmi\Elaborate Bytes\VirtualCloneDrive\VCDDaemon.exe" /s
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programmi\File comuni\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [ATICCC] "C:\Programmi\ATI Technologies\ATI.ACE\cli.exe" runtime -Delay
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [AnyDVD] C:\Programmi\SlySoft\AnyDVD\AnyDVD.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe"
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.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
O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O17 - HKLM\System\CCS\Services\Tcpip\..\{F356D44B-2A45-446D-881B-A0D26AC7F540}: NameServer = 193.70.152.15 193.70.152.25
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: AVG Firewall (AVGFwSrv) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgfwsrv.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: NBService - Nero AG - C:\Programmi\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Unknown owner - C:\Programmi\File comuni\Ahead\Lib\NMIndexingService.exe (file missing)
