Ho già provato, la prima volta che sono andato in ripristina conf. Sist. Mi dava solO una data ( a ottobre 2009 ) qundo ho comprato il pc probabilmente, e siccome perdevo molte cose ho rinunciato, credendo di riuscire a sistemare il problema ma, ovviamente non ci sono riuscito e quindi ho provato ancora col ripristino e a quel punto la data del 2009 non viene più fuori, solo quella di ieri 02/08/2011.
Incredibile, eppure ho altri 2 pc collegati alla stessa rete e stessa wifi ma il num ip non e cambiato.

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 6:10:28, on 2011/08/04
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:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\IDT\WDM\STacSV.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\sttray.exe
C:\Program Files\IDT\WDM\sttray.exe
C:\WINDOWS\system32\AESTFltr.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe
C:\Program Files\TortoiseSVN\bin\TSVNCache.exe
C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
C:\Program Files\Eset\nod32kui.exe
C:\Program Files\Eset\UpdateReminder.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\MSSQL7\binn\sqlservr.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BTTray.exe
C:\MSSQL7\Binn\sqlmangr.exe
C:\Program Files\Eset\nod32krn.exe
C:\Program Files\Microsoft SQL Server\90\Shared\sqlwriter.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\WIDCOMM\BLUETO~1\BTSTAC~1.EXE
C:\MSSQL7\binn\sqlagent.exe
C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
C:\Program Files\Hewlett-Packard\Shared\HpqToaster.exe
C:\WINDOWS\system32\msiexec.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
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: [IDTSysTrayApp] sttray.exe
O4 - HKLM\..\Run: [SysTrayApp] %ProgramFiles%\IDT\WDM\sttray.exe
O4 - HKLM\..\Run: [AESTFltr] "C:\WINDOWS\system32\AESTFltr.exe" /NoDlg
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [HP Mobile Broadband] c:\SWsetup\HPQWWAN\HPMobileBroadband.exe /TrayMode
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [IME JPN 2007 Migration] C:\PROGRA~1\COMMON~1\MICROS~1\IME12\IMEJP\IMJPKLMG.EXE /Preload
O4 - HKLM\..\Run: [CanonSolutionMenu] C:\Program Files\Canon\SolutionMenu\CNSLMAIN.exe /logon
O4 - HKLM\..\Run: [CanonMyPrinter] C:\Program Files\Canon\MyPrinter\BJMyPrt.exe /logon
O4 - HKLM\..\Run: [OWS Setup CmdLine] "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\40\bin\cfgwiz.exe" /pkg "Office 2000 Server Extensions"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [nod32kui] "C:\Program Files\Eset\nod32kui.exe" /WAITSERVICE
O4 - HKLM\..\Run: [UpdateReminder] C:\Program Files\Eset\UpdateReminder.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [ProxyCap] C:\PROGRA~1\PROXYL~1\ProxyCap\pcapui.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [ctfmon.exe] ctfmon.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [ctfmon.exe] ctfmon.exe (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [ctfmon.exe] ctfmon.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [ctfmon.exe] ctfmon.exe (User 'Default user')
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\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: (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:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O10 - Broken Internet access because of LSP provider 'pcapwsp.dll' missing
O15 - ESC Trusted Zone: http://*.update.microsoft.com
O16 - DPF: {67DABFBF-D0AB-41FA-9C46-CC0F21721616} (DivXBrowserPlugin Object) - http://download.divx.com/player/DivXBrowserPlugin.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{25041668-0733-4DBF-99D1-484BAEF416D7}: NameServer = 202.238.95.24,202.238.95.26
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Bonjour サービス (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: インクジェットプリンタ/スキャナ使用状況調査プログラム (IJPLMSVC) - Unknown owner - C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: NOD32 Kernel Service (NOD32krn) - Eset - C:\Program Files\Eset\nod32krn.exe
O23 - Service: Office Server Extensions Notification Service (OWSTimer) - Unknown owner - C:\Program Files\Microsoft Office\Office\OWSTIMER.EXE
O23 - Service: ProxyCap Service (pcapsvc) - Unknown owner - C:\Program Files\Proxy Labs\ProxyCap\pcapsvc.exe (file missing)
O23 - Service: Audio Service (STacSV) - IDT, Inc. - C:\Program Files\IDT\WDM\STacSV.exe

--
End of file - 7351 bytes

ok

Cmq non posso aggiornarlo xke non si connette proprio x questo problema