[Closed] Trojans and other possible viruses

The computer its beign very weird and even when i'm not doing anything it will use 1GB of ram, i would appriciate any help and info here's the log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:23:29 AM, on 3/11/2008
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16609)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Program Files (x86)\QuickTime\qttask.exe
C:\Program Files (x86)\Java\jre1.6.0_03\bin\jusched.exe
C:\Program Files (x86)\CyberLink\PCM4Everio\EverioService.exe
C:\Program Files (x86)\Microsoft Windows OneCare Live\winssnotify.exe
C:\Program Files (x86)\ScanSoft\PaperPort\pptd40nt.exe
C:\Program Files (x86)\Brother\ControlCenter3\brccMCtl.exe
C:\Program Files (x86)\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
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 =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = :0
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe
O1 - Hosts: ::1 localhost
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files (x86)\google\googletoolbar1.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files (x86)\google\googletoolbar1.dll
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [EverioService] "C:\Program Files (x86)\CyberLink\PCM4Everio\EverioService.exe"
O4 - HKLM\..\Run: [OneCareUI] "C:\Program Files (x86)\Microsoft Windows OneCare Live\winssnotify.exe"
O4 - HKLM\..\Run: [SSBkgdUpdate] "C:\Program Files (x86)\Common Files\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe" -Embedding -boot
O4 - HKLM\..\Run: [PaperPort PTD] "C:\Program Files (x86)\ScanSoft\PaperPort\pptd40nt.exe"
O4 - HKLM\..\Run: [IndexSearch] "C:\Program Files (x86)\ScanSoft\PaperPort\IndexSearch.exe"
O4 - HKLM\..\Run: [PPort11reminder] "C:\Program Files (x86)\ScanSoft\PaperPort\Ereg\Ereg.exe" -r "C:\ProgramData\ScanSoft\PaperPort\11\Config\Ereg\Ereg.ini
O4 - HKLM\..\Run: [BrMfcWnd] "C:\Program Files (x86)\Brother\Brmfcmon\BrMfcWnd.exe" /AUTORUN
O4 - HKLM\..\Run: [ControlCenter3] "C:\Program Files (x86)\Brother\ControlCenter3\brctrcen.exe" /autorun
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [swg] C:\Program Files (x86)\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')



i use windows vista