史萊姆論壇 - 小弟教室用的電腦,最近跑好慢

小弟之前才用superxp重灌過,發現到說在跑上課用的軟體的時候跑很慢,C槽還有20G的空間,可是不知道為什麼跑很慢,麻煩大家一下告訴小弟該怎麼做,謝謝!!
系統組態:
cpu---Pentium 4,2.80GHz雙核心
主機板---ASUS P4P800-VM
RAM---512MB
硬碟---HDS722580VLAT20(Hitachi 80GB)
VGA---ATI RADEON 7000(64MB)
DVD-ROM---ASUS DVD-E616P
網路卡----D-Link DFE-530TX
============================
Trend Micro HijackThis報告:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 上午 09:49:52, on 2008/5/30
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Analog Devices\SoundMAX\SMTray.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Eset\nod32kui.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\cisvc.exe
C:\WINDOWS\system32\inetsrv\inetinfo.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Eset\nod32krn.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\cidaemon.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Program Files\Xi\NetTransport 2\NetTransport.exe
C:\Documents and Settings\Administrator\桌面\HiJackThis.exe

O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: NTIECatcher Class - {C56CB6B0-0D96-11D6-8C65-B2868B609932} - C:\Program Files\Xi\NetTransport 2\NTIEHelper.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [Smapp] C:\Program Files\Analog Devices\SoundMAX\SMTray.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [nod32kui] "C:\Program Files\Eset\nod32kui.exe" /WAITSERVICE
O4 - HKLM\..\Run: [CJIMETIPSYNC] C:\Program Files\Common Files\Microsoft Shared\IME\IMTC65\CHANGJIE\CINTLCFG.EXE /CJIMETIPSync
O4 - HKLM\..\Run: [PHIMETIPSYNC] C:\Program Files\Common Files\Microsoft Shared\IME\IMTC65\PHONETIC\TINTLCFG.EXE /PHIMETIPSync
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')
O8 - Extra context menu item: 使用影音傳送帶下載 - C:\Program Files\Xi\NetTransport 2\NTAddLink.html
O8 - Extra context menu item: 使用影音傳送帶下載全部連結 - C:\Program Files\Xi\NetTransport 2\NTAddList.html
O8 - Extra context menu item: 匯出至 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: 參考資料 - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O14 - IERESET.INF: START_PAGE_URL=tw.yahoo.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{C37906B5-0E07-4C55-B507-AA1C45F31C3E}: NameServer = 210.60.239.1,168.95.192.1
O23 - Service: NOD32 Kernel Service (NOD32krn) - Eset - C:\Program Files\Eset\nod32krn.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe

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