ho messo un backup vecchio del sistema su un nuovo hard disk ma ci sono dei rallentamenti nell'uso quotidiano del pc c'è qualcosa che non va quando apro windowx live messenger appare un'errore: "wldcore.dll non è presente nel computer" ,vi posto un log di hijackthis potreste controllarlo? grazie

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:04:28, on 22/10/2010
Platform: Unknown Windows (WinNT 6.01.3504)
MSIE: Internet Explorer v8.00 (8.00.7600.16671)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Common Files\Acronis\Schedule2\schedhlp.exe
C:\Program Files (x86)\Windows Live\Device Manager\msgrdvmn.exe
C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCU.exe
C:\Program Files (x86)\NEC Electronics\USB 3.0 Host Controller Driver\Application\nusb3mon.exe
C:\Program Files (x86)\Avira\AntiVir Desktop\avgnt.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Trend Micro\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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Program Files (x86)\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: MegaIEMn - {bf00e119-21a3-4fd1-b178-3b8537e75c92} - C:\Program Files (x86)\Megaupload\Mega Manager\MegaIEMn.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O2 - BHO: Hotspot Shield Class - {F9E4A054-E9B1-4BC3-83A3-76A1AE736170} - C:\Program Files (x86)\Hotspot Shield\HssIE\HssIE.dll
O4 - HKLM\..\Run: [BCU] "C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCU.exe"
O4 - HKLM\..\Run: [JMB36X IDE Setup] C:\Windows\RaidTool\xInsIDE.exe
O4 - HKLM\..\Run: [NUSB3MON] "C:\Program Files (x86)\NEC Electronics\USB 3.0 Host Controller Driver\Application\nusb3mon.exe"
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files (x86)\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [WindowsLivePhone] C:\Program Files (x86)\Windows Live\Device Manager\msgrdvmn.exe /AutoRun
O4 - HKLM\..\Run: [avgnt] "C:\Program Files (x86)\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [SwitchBoard] C:\Program Files (x86)\Common Files\Adobe\SwitchBoard\SwitchBoard.exe
O4 - HKCU\..\Run: [WindowsLivePhone] "C:\Program Files (x86)\Windows Live\Device Manager\msgrdvmn.exe" /AutoRun
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')
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\Windows\system32\GPhotos.scr/200
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Free YouTube to Mp3 Converter - C:\Users\Stefano\AppData\Roaming\DVDVideoSoftIEHelpers\youtubetomp3.htm
O8 - Extra context menu item: Scarica link utilizzando Mega Manager... - C:\Program Files (x86)\Megaupload\Mega Manager\mm_file.htm
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~1\Office12\REFIEBAR.DLL
O13 - Gopher Prefix:
O15 - Trusted Zone: http://www.webprofiles.it
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{59CA4DD3-D505-4792-85E9-0034E7673D45}: NameServer = 212.216.172.62,194.243.154.62
O17 - HKLM\System\CCS\Services\Tcpip\..\{6AF62102-8C00-4C80-8F1B-184354489143}: NameServer = 212.216.172.62,194.243.154.62
O17 - HKLM\System\CS1\Services\Tcpip\..\{59CA4DD3-D505-4792-85E9-0034E7673D45}: NameServer = 212.216.172.62,194.243.154.62
O17 - HKLM\System\CS2\Services\Tcpip\..\{59CA4DD3-D505-4792-85E9-0034E7673D45}: NameServer = 212.216.172.62,194.243.154.62
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Program Files (x86)\Microsoft Office\Office12\GrooveSystemServices.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\Skype4COM.dll
O23 - Service: Servizio Acronis Scheduler2 (AcrSch2Svc) - Acronis - C:\Program Files (x86)\Common Files\Acronis\Schedule2\schedul2.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: Avira AntiVir Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files (x86)\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files (x86)\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Servizio stato di ASP.NET (aspnet_state) - Unknown owner - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_state.exe (file missing)
O23 - Service: Browser Configuration Utility Service (BCUService) - DeviceVM, Inc. - C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCUService.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files (x86)\Bonjour\mDNSResponder.exe
O23 - Service: Device Error Recovery Service (dgdersvc) - Devguru Co., Ltd. - C:\Windows\system32\dgdersvc.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: ES lite Service for program management. (ES lite Service) - Unknown owner - C:\Program Files (x86)\Gigabyte\EasySaver\ESSVR.EXE
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Hotspot Shield Service (HotspotShieldService) - Unknown owner - C:\Program Files (x86)\Hotspot Shield\bin\openvpnas.exe
O23 - Service: Hotspot Shield Tray Service (HssTrayService) - Unknown owner - C:\Program Files (x86)\Hotspot Shield\bin\HssTrayService.EXE
O23 - Service: Hotspot Shield Monitoring Service (HssWd) - Unknown owner - C:\Program Files (x86)\Hotspot Shield\bin\hsswd.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: JMB36X - Unknown owner - C:\Windows\SysWOW64\XSrvSetup.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: Nero BackItUp Scheduler 3 - Nero AG - C:\Program Files (x86)\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NMIndexingService - Nero AG - C:\Program Files (x86)\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: PhoneMyPC_Helper - SoftwareForMe Inc - C:\Program Files\SoftwareForMe Inc\PhoneMyPC\PhoneMyPC_Helper.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: SiSoftware Deployment Agent Service (SandraAgentSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2010.SP2\RpcAgentSrv.exe
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: SwitchBoard - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\SwitchBoard\SwitchBoard.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
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\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.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: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 10984 bytes

@: live messenger prova a reistallare il tutto il log è ok

ho dovuto sostituire l'hard disk perchè si era rotto,però sono riuscito a fare un backup di tutto il sistema e l'ho rimesso sul nuovo hard disk,si avevo lo stesso sistema operativo: windows 7,e ho anche il disco del sistema operativo

grazie maopapof seguirò i tuoi consigli,grazie anche a thepiratebay,proverò a reinstallare messenger faccio prima del ripristino di sistema