Mi controllate il LOG per favore?
Ho un portatile Acer, con XP e Office 2003.
Da qualche tempo, quando riavvio, in particolare dopo aver ripulito con AdAware/SpyBot e CCleaner, mi appare il seguente avviso:

“Impossibile eseguire l’operazione su un file la cui sezione mappata dall’utente è aperta.”

Poi, dopo qualche secondo, scompare e tutto sembra procedere normalmente.
Preciso che, per quanto ne so, nessun programma è aperto, tranne AVG e PCTools e la connessione ad Internet.
Come sempre è stato, senza che apparisse nessun avviso.
Devo aggiungere che continua ad apparire anche la finestra di errore, con invito di segnalazione alla Microsoft, quasi tutte le volte ricevo mail con Microsoft Outlook.


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15.28.44, on 05/08/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\PC Tools Firewall Plus\FWService.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
C:\Programmi\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Acer\Empowering Technology\eRecovery\Monitor.exe
C:\Programmi\File comuni\Acronis\Schedule2\schedul2.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Acer\Acer Arcade\PCMService.exe
c:\Acer\Empowering Technology\admServ.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Acer\Empowering Technology\eDataSecurity\eDSloader.exe
C:\acer\Empowering Technology\ePower\epm-dm.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\LAUNCH~1\LManager.exe
C:\WINDOWS\system32\rundll32.exe
C:\Acer\Empowering Technology\admtray.exe
C:\Programmi\PC Tools Firewall Plus\FirewallGUI.exe
C:\Programmi\Acronis\TrueImageEnterprise\TrueImageMonitor.exe
C:\Programmi\File comuni\Acronis\Schedule2\schedhlp.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\Programmi\Java\jre1.6.0_07\bin\jusched.exe
C:\Programmi\My Lockbox\flockbox.exe
C:\Programmi\Acer\Acer Arcade\Kernel\TV\CLCapSvc.exe
C:\Programmi\Acer\Acer Arcade\Kernel\CLML_NTService\CLMLServer.exe
C:\Programmi\Acer\Acer Arcade\Kernel\CLML_NTService\CLMLService.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
C:\Programmi\CyberLink\Shared Files\RichVideo.exe
C:\Programmi\Compact Wireless-G USB Adapter Wireless Network Monitor\WLService.exe
C:\Programmi\Acer\Acer Arcade\Kernel\TV\CLSched.exe
C:\Programmi\Compact Wireless-G USB Adapter Wireless Network Monitor\WUSB54GC.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Programmi scaricati\HiJackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://global.acer.com
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://windowsupdate.microsoft.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar con blocco Pop-Up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: AVG Safe Search - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Programmi\AVG\AVG8\avgssie.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_07\bin\ssv.dll
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [LaunchApp] Alaunch
O4 - HKLM\..\Run: [Collegamento alla pagina delle proprietà di High Definition Audio] HDAShCut.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [AzMixerSel] C:\Programmi\Realtek\InstallShield\AzMixerSel.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
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: [PCMService] "C:\Programmi\Acer\Acer Arcade\PCMService.exe"
O4 - HKLM\..\Run: [ATIPTA] C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [eDataSecurity Loader] C:\Acer\Empowering Technology\eDataSecurity\eDSloader.exe
O4 - HKLM\..\Run: [EPM-DM] c:\acer\Empowering Technology\ePower\epm-dm.exe
O4 - HKLM\..\Run: [Acer ePower Management] C:\Acer\Empowering Technology\ePower\Acer ePower Management.exe boot
O4 - HKLM\..\Run: [LManager] C:\PROGRA~1\LAUNCH~1\LManager.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [eRecoveryService] C:\Acer\Empowering Technology\eRecovery\Monitor.exe
O4 - HKLM\..\Run: [ADMTray.exe] "c:\Acer\Empowering Technology\admtray.exe"
O4 - HKLM\..\Run: [00PCTFW] "C:\Programmi\PC Tools Firewall Plus\FirewallGUI.exe" -s
O4 - HKLM\..\Run: [EPSON Stylus D78 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIBGE.EXE /FU "C:\WINDOWS\TEMP\E_S7B.tmp" /EF "HKLM"
O4 - HKLM\..\Run: [TrueImageMonitor.exe] C:\Programmi\Acronis\TrueImageEnterprise\TrueImageMonitor.exe
O4 - HKLM\..\Run: [Acronis Scheduler2 Service] "C:\Programmi\File comuni\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [flockbox] C:\Programmi\My Lockbox\flockbox.exe /a
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
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: Invia a &Bluetooth - c:\Programmi\WIDCOMM\Software Bluetooth\btsendto_ie_ctx.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
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
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - http://javadl.sun.com/webapps/download/AutoDL?BundleId=23100
O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} (get_atlcom Class) - http://www.adobe.com/products/acrobat/nos/gp.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Programmi\AVG\AVG8\avgpp.dll
O20 - AppInit_DLLs: avgrsstx.dll
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Programmi\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Programmi\File comuni\Acronis\Schedule2\schedul2.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: AdminWorks Agent X6 (AWService) - Avocent Inc. - c:\Acer\Empowering Technology\admServ.exe
O23 - Service: CyberLink Background Capture Service (CBCS) (CLCapSvc) - Unknown owner - C:\Programmi\Acer\Acer Arcade\Kernel\TV\CLCapSvc.exe
O23 - Service: CyberLink Task Scheduler (CTS) (CLSched) - Unknown owner - C:\Programmi\Acer\Acer Arcade\Kernel\TV\CLSched.exe
O23 - Service: CyberLink Media Library Service - Cyberlink - C:\Programmi\Acer\Acer Arcade\Kernel\CLML_NTService\CLMLServer.exe
O23 - Service: EvtEng - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: PC Tools Firewall Plus (PCToolsFirewallPlus) - PC Tools - C:\Programmi\PC Tools Firewall Plus\FWService.exe
O23 - Service: RegSrvc - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programmi\CyberLink\Shared Files\RichVideo.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - C:\Programmi\WinPcap\rpcapd.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: WUSB54GCSVC - GEMTEKS - C:\Programmi\Compact Wireless-G USB Adapter Wireless Network Monitor\WLService.exe

--
End of file - 9096 bytes

Ciao.
E' possibile che uno dei software che hai elencato ( AdAware/SpyBot e CCleaner) vada in conflitto con qualche file del S.O.
Prova a disistallarne uno alla volta,e, per esclusione,prova a vedere qual'è quello che crea il problema.
Se fosse uno dei 3 (o più),disistallalo e reistallalo.
Forse ha qualche file corrotto.
Consiglio disinteressato: al posto di Ad-Aware 2007,installa Malwarebytes' Anti-MalwareMalwarebyte,che è più performante.
Naturalmente,prendilo come un parere personale.
Dimenticavo: il log è pulito.

Davvero?
http://www.malwarebytes.org/mbam.php
Clicca su Download e NON su $ Buy Now, sennò ti spediscono alla pagina web riguardante l'acquisto (a meno che tu non voglia acquistarlo, ovviamente [io, per esempio, l'ho acquistato per mia scelta]).

Sai bene che mi sei simpatico, Curiosit!.., Ho solo voluto fare un'amichevole "battuta", niente più... Rimani comunque il migliore: (e specialmente in tempo d'Olimpiadi)