Periodicamente il computer si rallenta e arriva anche la schermata blu,ho postato il log per qualche programma da eliminare,grazie :

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 17.42.15, on 02/09/2013
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v9.00 (9.00.8112.16502)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\Explorer.EXE
C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files\ATI Technologies\HydraVision\HydraDM.exe
C:\WINDOWS\ehome\ehtray.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CCC.exe
C:\Windows\system32\Macromed\Flash\FlashUtil32_11_8_800_94_ActiveX.exe
C:\Windows\system32\SearchProtocolHost.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Users\Giacomino\Downloads\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = Preserve
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,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [IAStorIcon] C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
O4 - HKLM\..\Run: [MSC] "c:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [HydraVisionDesktopManager] "C:\Program Files\ATI Technologies\HydraVision\HydraDM.exe"
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /minimized /regrun
O8 - Extra context menu item: Apri client su monitor &1 - C:\Windows\web\AOpenClient.htm
O8 - Extra context menu item: Apri client su monitor &2 - C:\Windows\web\AOpenClient.htm
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: AMD External Events Utility - AMD - C:\Windows\system32\atiesrxx.exe
O23 - Service: APC Data Service - Schneider Electric - C:\Program Files\APC\PowerChute Personal Edition\dataserv.exe
O23 - Service: APC UPS Service - Schneider Electric - C:\Program Files\APC\PowerChute Personal Edition\mainserv.exe
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files\HP Games\My HP Game Console\GameConsoleService.exe
O23 - Service: HP Health Check Service - Hewlett-Packard - c:\Program Files\Hewlett-Packard\HP Health Check\hphc_service.exe
O23 - Service: Intel(R) Rapid Storage Technology (IAStorDataMgrSvc) - Intel Corporation - C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorDataMgrSvc.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - c:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: Skype C2C Service - Skype Technologies S.A. - C:\ProgramData\Skype\Toolbars\Skype C2C Service\c2c_service.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files\Skype\Updater\Updater.exe

--
End of file - 5166 bytes

allego log adwance:


# AdwCleaner v3.002 - Report created 02/09/2013 at 19:29:54
# Updated 01/09/2013 by Xplode
# Operating System : Windows Vista (TM) Home Premium Service Pack 2 (32 bits)
# Username : Giacomino - PC-CASASALERNO
# Running from : C:\Users\Giacomino\Downloads\adwcleaner.exe
# Option : Clean

***** [ Services ] *****


***** [ Files / Folders ] *****


***** [ Shortcuts ] *****


***** [ Registry ] *****

Key Deleted : HKLM\SOFTWARE\Classes\CLSID\{2CE4D4CF-B278-4126-AD1E-B622DA2E8339}
Key Deleted : HKLM\SOFTWARE\Classes\CLSID\{898EA8C8-E7FF-479B-8935-AEC46303B9E5}
Key Deleted : HKLM\SOFTWARE\Classes\CLSID\{AE805869-2E5C-4ED4-8F7B-F1F7851A4497}
Key Deleted : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AE805869-2E5C-4ED4-8F7B-F1F7851A4497}
Key Deleted : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{AE805869-2E5C-4ED4-8F7B-F1F7851A4497}
Key Deleted : HKCU\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{AE805869-2E5C-4ED4-8F7B-F1F7851A4497}
Key Deleted : HKLM\SOFTWARE\Microsoft\Internet Explorer\Extensions\{898EA8C8-E7FF-479B-8935-AEC46303B9E5}

***** [ Browsers ] *****

-\\ Internet Explorer v9.0.8112.16502


*************************

AdwCleaner[R0].txt - [660 octets] - [21/08/2013 17:25:53]
AdwCleaner[R1].txt - [778 octets] - [24/08/2013 12:56:52]
AdwCleaner[R2].txt - [896 octets] - [28/08/2013 17:00:14]
AdwCleaner[R3].txt - [1713 octets] - [02/09/2013 19:29:30]
AdwCleaner[S0].txt - [720 octets] - [21/08/2013 17:27:45]
AdwCleaner[S1].txt - [838 octets] - [24/08/2013 12:57:51]
AdwCleaner[S2].txt - [956 octets] - [28/08/2013 17:01:05]
AdwCleaner[S3].txt - [1648 octets] - [02/09/2013 19:29:54]

########## EOF - C:\AdwCleaner\AdwCleaner[S3].txt - [1708 octets] ##########