windows mal formatado ou o que?

[salvadorjunior]

Acabei de pegar meu pc na assistência tecnica e depois de formata-lo de novo,SO windows xp pro,toda vez que vou instalar algum drive ou outra coisa qualquer aparece uma janela avisando que o windows não pode proteger os arquivos e que o sistema deve ser restaurado instalando o service pack2 porque o sistema foi insatalado com arquivos não validos pelo windows(é mais ou menos isso,me desculpem mas esqueci de anotar a mensagem exatamente como ela apareceu)enfim estou meio perdido............

O sistema foi mal instalado ou é virus?

Vou mandar um log se alguem poder analisar eu agredeço................

Logfile of HijackThis v1.99.1

Scan saved at 19:52:14, on 26/8/2006

Platform: Windows XP SP2 (WinNT 5.01.2600)

MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\WINDOWS\system32\spoolsv.exe

C:\WINDOWS\Explorer.EXE

C:\ARQUIV~1\Grisoft\AVGFRE~1\avgcc.exe

C:\ARQUIV~1\Grisoft\AVGFRE~1\avgemc.exe

C:\Arquivos de programas\CyberLink\PowerDVD\PDVDServ.exe

C:\WINDOWS\sm56hlpr.exe

C:\WINDOWS\system32\RUNDLL32.EXE

C:\Arquivos de programas\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe

C:\Arquivos de programas\MSN Messenger\MsnMsgr.Exe

C:\ARQUIV~1\Grisoft\AVGFRE~1\avgamsvr.exe

C:\ARQUIV~1\Grisoft\AVGFRE~1\avgupsvc.exe

C:\Arquivos de programas\Arquivos comuns\Microsoft Shared\VS7DEBUG\MDM.EXE

C:\WINDOWS\system32\nvsvc32.exe

C:\WINDOWS\system32\svchost.exe

C:\WINDOWS\system32\WgaTray.exe

C:\Arquivos de programas\Internet Explorer\iexplore.exe

C:\Arquivos de programas\Windows Media Player\wmplayer.exe

C:\Documents and Settings\User\Desktop\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = &http://home.microsoft.com/intl/br/access/allinone.asp

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.terra.com.br/

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Arquivos de programas\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll

O3 - Toolbar: Barra de Ferramentas do Yahoo! com bloqueador de pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Arquivos de programas\Yahoo!\Companion\Installs\cpn\yt.dll

O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Arquivos de programas\Canon\Easy-WebPrint\Toolband.dll

O4 - HKLM\..\Run: [AVG7_CC] C:\ARQUIV~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP

O4 - HKLM\..\Run: [AVG7_EMC] C:\ARQUIV~1\Grisoft\AVGFRE~1\avgemc.exe

O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe

O4 - HKLM\..\Run: [RemoteControl] "C:\Arquivos de programas\CyberLink\PowerDVD\PDVDServ.exe"

O4 - HKLM\..\Run: [sMSERIAL] sm56hlpr.exe

O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup

O4 - HKLM\..\Run: [nwiz] nwiz.exe /install

O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit

O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Arquivos de programas\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe"

O4 - HKLM\..\Run: [Easy-PrintToolBox] C:\Arquivos de programas\Canon\Easy-PrintToolBox\BJPSMAIN.EXE /logon

O4 - HKCU\..\Run: [MsnMsgr] "C:\Arquivos de programas\MSN Messenger\MsnMsgr.Exe" /background

O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Arquivos de programas\Adobe\Acrobat 7.0\Reader\reader_sl.exe

O8 - Extra context menu item: E&xportar para o Microsoft Excel - res://C:\ARQUIV~1\MICROS~2\OFFICE11\EXCEL.EXE/3000

O8 - Extra context menu item: Easy-WebPrint Add To Print List - res://C:\Arquivos de programas\Canon\Easy-WebPrint\Resource.dll/RC_AddToList.html

O8 - Extra context menu item: Easy-WebPrint High Speed Print - res://C:\Arquivos de programas\Canon\Easy-WebPrint\Resource.dll/RC_HSPrint.html

O8 - Extra context menu item: Easy-WebPrint Preview - res://C:\Arquivos de programas\Canon\Easy-WebPrint\Resource.dll/RC_Preview.html

O8 - Extra context menu item: Easy-WebPrint Print - res://C:\Arquivos de programas\Canon\Easy-WebPrint\Resource.dll/RC_Print.html

O9 - Extra button: Pesquisar - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\ARQUIV~1\MICROS~2\OFFICE11\REFIEBAR.DLL

O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Arquivos de programas\Messenger\msmsgs.exe

O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Arquivos de programas\Messenger\msmsgs.exe

O14 - IERESET.INF: SEARCH_PAGE_URL=&http://home.microsoft.com/intl/br/access/allinone.asp

O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\ARQUIV~1\MSNMES~1\msgrapp.dll" (file missing)

O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll

O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\ARQUIV~1\Grisoft\AVGFRE~1\avgamsvr.exe

O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\ARQUIV~1\Grisoft\AVGFRE~1\avgupsvc.exe

O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe