在没有运行任何软件的情况下，cpu的占用率也达到40—50%。主要是System Idle Process这个进程。我把SREny的报告贴上来。

启动项目
注册表
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
  <ctfmon.exe><C:\WINDOWS\system32\ctfmon.exe>
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
  <KavPFW><"C:\KAV2006\KPFW32.EXE">
[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows]
  <load><>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <IMJPMIG8.1><"C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <PHIME2002ASync><C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <PHIME2002A><C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <SoundMan><SOUNDMAN.EXE>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <ATIPTA><C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <TkBellExe><"C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <IMSCMig><C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40A\IMSCMIG.EXE /Preload>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <KavStart><"C:\KAV2006\KAVStart.exe" -startup>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
  <Thunder><"D:\软件\迅雷\ThunderShell.exe" /s>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
  <shell><Explorer.exe>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
  <Userinit><C:\WINDOWS\system32\userinit.exe,>
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows]
  <AppInit_DLLs><>
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
  <Kugoo><; D:\软件\KUGOO\KUGOO2\kugoo.exe>
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
  <SKYNET Personal FireWall><; >
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
  <StormCodec_Helper><; "D:\软件\暴风影音\Storm Codec\StormSet.exe" /S /opti>

启动文件夹
服务
[Ati HotKey Poller / Ati HotKey Poller]
  <C:\WINDOWS\system32\Ati2evxx.exe><ATI Technologies Inc.>
[Kingsoft Personal Firewall Service / KPfwSvc]
  <"C:\KAV2006\KPfwSvc.EXE"><Kingsoft Corporation>
[Kingsoft Antivirus KWatch Service / KWatchSvc]
  <C:\KAV2006\KWatch.EXE><Kingsoft Corporation>
浏览器加载项
[ThunderIEHelper Class]
  {0005A87D-D626-4B3A-84F9-1D9571695F55} <C:\WINDOWS\system32\xunleibho_v14.dll, Thunder Networking Technologies,LTD>
[]
  {A9930D97-9CF0-42A0-A10D-4F28836579D5} <D:\软件\KuGoo\KuGoo2\KuGoo3DownXControl.ocx, N/A>
[信息检索(&R)]
  {92780B25-18CC-41C8-B9BE-3C9C571A8263} <D:\软件\OFFICE~1\OFFICE11\REFIEBAR.DLL, Microsoft Corporation>
[QQ]
  {c95fe080-8f5d-11d2-a20b-00aa003c157b} <D:\qq2006\QQ.EXE, TENCENT>
[易趣购物]
  {DE60714F-AC17-427e-861A-FD60CBDF119A} <http://click2.ad4all.net/url2/urlmanage/url.asp?id=1, N/A>
[Messenger]
  {FB5F1910-F110-11d2-BB9E-00C04F795683} <C:\Program Files\Messenger\msmsgs.exe, Microsoft Corporation>
[WebActivater Control]
  {3D8F74EE-8692-4F8F-B8D2-7522E732519E} <C:\WINDOWS\system32\WEBACT~1.OCX, QQ>
[Java Plug-in 1.4.2]
  {8AD9C840-044E-11D1-B3E9-00805F499D93} <C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll, JavaSoft / Sun Microsystems, Inc.>
[Qzone Media Tools]
  {AC3A36A8-9BFF-410A-A33D-2279FFEB69D2} <D:\qq2006\VQQPLA~1.OCX, Tencent Technology (Shenzhen) Company Limited>
[Java Plug-in 1.4.2]
  {CAFEEFAC-0014-0002-0000-ABCDEFFEDCBA} <C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll, JavaSoft / Sun Microsystems, Inc.>
[Shockwave Flash Object]
  {D27CDB6E-AE6D-11CF-96B8-444553540000} <C:\WINDOWS\system32\Macromed\Flash\Flash8.ocx, Macromedia, Inc.>
[ThunderIEHelper Class]
  {0005A87D-D626-4B3A-84F9-1D9571695F55} <C:\WINDOWS\system32\xunleibho_v14.dll, Thunder Networking Technologies,LTD>
[ActiveMovieControl Object]
  {05589FA1-C356-11CE-BF01-00AA0055595A} <C:\WINDOWS\system32\wmpdxm.dll, Microsoft Corporation>
[Windows Media Player]
  {22D6F312-B0F6-11D0-94AB-0080C74C7E95} <C:\WINDOWS\system32\wmpdxm.dll, Microsoft Corporation>
[HTML Document]
  {25336920-03F9-11CF-8FD0-00AA00686F13} <%SystemRoot%\system32\mshtml.dll, N/A>
[RealPlayer RAM Download Handler]
  {2F542A2E-EDC9-4BF7-8CB1-87C9919F7F93} <C:\WINDOWS\system32\rmoc3260.dll, RealNetworks, Inc.>
[Tabular Data Control]
  {333C7BC4-460F-11D0-BC04-0080C7055A83} <C:\WINDOWS\system32\tdc.ocx, Microsoft Corporation>
[IETag Factory]
  {38481807-CA0E-42D2-BF39-B33AF135CC4D} <C:\PROGRA~1\COMMON~1\MICROS~1\SMARTT~1\IETAG.DLL, Microsoft Corporation>
[HHCtrl Object]
  {52A2AAAE-085D-4187-97EA-8C30DB990436} <C:\WINDOWS\system32\hhctrl.ocx, Microsoft Corporation>
[Shell Name Space]
  {55136805-B2DE-11D1-B9F2-00A0C98BC547} <%SystemRoot%\system32\shdocvw.dll, N/A>
[Windows Media Player]
  {6BF52A52-394A-11D3-B153-00C04F79FAA6} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[Microsoft Web 浏览器]
  {8856F961-340A-11D0-A96B-00C04FD705A2} <C:\WINDOWS\system32\shdocvw.dll, Microsoft Corporation>
[]
  {A9930D97-9CF0-42A0-A10D-4F28836579D5} <D:\软件\KuGoo\KuGoo2\KuGoo3DownXControl.ocx, N/A>
[Microsoft Scriptlet Component]
  {AE24FDAE-03C6-11D1-8B76-0080C744F389} <C:\WINDOWS\system32\mshtml.dll, Microsoft Corporation>
[SearchAssistantOC]
  {B45FF030-4447-11D2-85DE-00C04FA35C89} <%SystemRoot%\system32\shdocvw.dll, N/A>
[AUDIO__MP3 Moniker Class]
  {CD3AFA76-B84F-48F0-9393-7EDC34128127} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[VIDEO__X_MS_WMV Moniker Class]
  {CD3AFA94-B84F-48F0-9393-7EDC34128127} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[VIDEO__X_MS_WVX Moniker Class]
  {CD3AFA95-B84F-48F0-9393-7EDC34128127} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[RealPlayer G2 Control]
  {CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA} <C:\WINDOWS\system32\rmoc3260.dll, RealNetworks, Inc.>
[Shockwave Flash Object]
  {D27CDB6E-AE6D-11CF-96B8-444553540000} <C:\WINDOWS\system32\Macromed\Flash\Flash8.ocx, Macromedia, Inc.>
[&使用迅雷下载]
  <D:\软件\迅雷\geturl.htm, N/A>
[&使用迅雷下载全部链接]
  <D:\软件\迅雷\getallurl.htm, N/A>
[上传到QQ网络硬盘]
  <D:\qq2006\AddToNetDisk.htm, N/A>
[使用KuGoo3下载(&K)]
  <D:\软件\KUGOO\KUGOO2\KuGoo3DownX.htm, N/A>
[导出到 Microsoft Office Excel(&X)]
  <res://D:\软件\OFFICE~1\OFFICE11\EXCEL.EXE/3000, N/A>
[添加到QQ自定义面板]
  <D:\qq2006\AddPanel.htm, N/A>
[添加到QQ表情]
  <D:\qq2006\AddEmotion.htm, N/A>
[用QQ彩信发送该图片]
  <D:\qq2006\SendMMS.htm, N/A>

正在运行的进程
[PID: 612][\SystemRoot\System32\smss.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 676][\??\C:\WINDOWS\system32\csrss.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 700][\??\C:\WINDOWS\system32\winlogon.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\WINDOWS\system32\Ati2evxx.dll]  <ATI Technologies Inc.><6.14.10.4110>
[PID: 744][C:\WINDOWS\system32\services.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 756][C:\WINDOWS\system32\lsass.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 900][C:\WINDOWS\system32\Ati2evxx.exe]  <ATI Technologies Inc.><6.14.10.4110>
    [C:\WINDOWS\system32\Ati2edxx.dll]  <ATI Technologies, Inc.><6, 14, 10, 2495>
[PID: 912][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 976][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1064][C:\WINDOWS\System32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1116][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1248][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1660][C:\KAV2006\KWatch.EXE]  <Kingsoft Corporation><2005, 9, 27, 51>
    [C:\KAV2006\KAVIPC2.DLL]  <Kingsoft Corporation><2004, 12, 28, 20>
    [C:\KAV2006\KAEPlat.DLL]  <Kingsoft Corp.><2004, 11, 26, 53>
    [C:\KAV2006\KAEMem.DAT]  <Kingsoft><2004, 11, 9, 11>
[PID: 1716][C:\WINDOWS\system32\spoolsv.exe]  <Microsoft Corporation><5.1.2600.2696 (xpsp_sp2_gdr.050610-1519)>
[PID: 484][C:\KAV2006\KPfwSvc.EXE]  <Kingsoft Corporation><2005, 9, 5, 28>
[PID: 552][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1132][C:\WINDOWS\system32\wdfmgr.exe]  <Microsoft Corporation><5.2.3790.1230 built by: dnsrv(bld4act)>
[PID: 1972][C:\WINDOWS\System32\alg.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1332][C:\WINDOWS\system32\Ati2evxx.exe]  <ATI Technologies Inc.><6.14.10.4110>
    [C:\WINDOWS\system32\Ati2edxx.dll]  <ATI Technologies, Inc.><6, 14, 10, 2495>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 1832][C:\WINDOWS\Explorer.EXE]  <Microsoft Corporation><6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
    [C:\WINDOWS\system32\xunleibho_v14.dll]  <Thunder Networking Technologies,LTD><4, 6, 0, 62>
    [D:\软件\KuGoo\KuGoo2\KuGoo3DownXControl.ocx]  <N/A><N/A>
[PID: 644][C:\WINDOWS\SOUNDMAN.EXE]  <Realtek Semiconductor Corp.><5.1.0.29>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 1784][C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe]  <ATI Technologies, Inc.><6.14.10.5134>
    [C:\Program Files\ATI Technologies\ATI Control Panel\atipdsxx.dll]  <ATI Technologies, Inc.><6.14.10.5134>
    [C:\PROGRAM FILES\ATI TECHNOLOGIES\ATI CONTROL PANEL\ATRPUIXX.CHS]  <ATI Technologies, Inc.><6.14.10.5134>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
    [C:\Program Files\ATI Technologies\ATI Control Panel\atipdxxx.dll]  <ATI Technologies, Inc.><6.14.10.5134>
[PID: 1376][C:\Program Files\Common Files\Real\Update_OB\realsched.exe]  <RealNetworks, Inc.><0.1.0.3292>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 3076][C:\KAV2006\KAVStart.exe]  <Kingsoft Corporation><2005, 12, 15, 192>
    [C:\KAV2006\KAVIPC2.DLL]  <Kingsoft Corporation><2004, 12, 28, 20>
    [C:\KAV2006\KAVPassp.dll]  <Kingsoft Corporation><2005, 12, 14, 227>
    [C:\KAV2006\PopSprt3.dll]  <Kingsoft Corporation><2005, 12, 6, 30>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 560][C:\WINDOWS\system32\ctfmon.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 2848][C:\KAV2006\KPFW32.EXE]  <Kingsoft Corporation><2006, 1, 17, 609>
    [C:\KAV2006\KAVIPC2.DLL]  <Kingsoft Corporation><2004, 12, 28, 20>
    [C:\KAV2006\KAConfig.DLL]  <Kingsoft Corporation><2005, 3, 23, 30>
    [C:\KAV2006\FiltList.dll]  <N/A><N/A>
    [C:\KAV2006\KAVPassp.DLL]  <Kingsoft Corporation><2005, 12, 14, 227>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
    [C:\KAV2006\KAEPlat.DLL]  <Kingsoft Corp.><2004, 11, 26, 53>
    [C:\KAV2006\KAEMem.DAT]  <Kingsoft><2004, 11, 9, 11>
    [C:\KAV2006\KAScript.DLL]  <Kingsoft Corporation><2006, 2, 10, 60>
[PID: 2112][C:\KAV2006\KMailMon.EXE]  <Kingsoft Corporation><2005, 10, 8, 85>
    [C:\KAV2006\KAntiSpm.dll]  <N/A><1, 0, 0, 2>
    [C:\KAV2006\KAVIPC2.DLL]  <Kingsoft Corporation><2004, 12, 28, 20>
    [C:\KAV2006\KAECall2.DLL]  <Kingsoft Corporation><2004, 12, 28, 7>
    [C:\KAV2006\KAEPlat.DLL]  <Kingsoft Corp.><2004, 11, 26, 53>
    [C:\KAV2006\KAEMem.DAT]  <Kingsoft><2004, 11, 9, 11>
    [C:\KAV2006\KAConfig.DLL]  <Kingsoft Corporation><2005, 3, 23, 30>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>
[PID: 2140][D:\软件\sreng2(1)\SREng.exe]  <Smallfrogs Studio><2.0.12.350>
    [C:\KAV2006\KASocket.dll]  <Kingsoft Corporation><2005, 2, 22, 233>

==================================
文件关联
.TXT  OK. [%SystemRoot%\system32\NOTEPAD.EXE %1]
.EXE  OK. ["%1" %*]
.COM  OK. ["%1" %*]
.PIF  OK. ["%1" %*]
.REG  OK. [regedit.exe "%1"]
.BAT  OK. ["%1" %*]
.SCR  OK. ["%1" /S]
.CHM  Error. ["hh.exe" %1]
.HLP  Error. [winhlp32.exe %1]
.INI  OK. [%SystemRoot%\System32\NOTEPAD.EXE %1]
.INF  OK. [%SystemRoot%\System32\NOTEPAD.EXE %1]
.VBS  OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.JS  OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.LNK  OK. [{00021401-0000-0000-C000-000000000046}]

可时平时好像cpu没有被占用那么多阿
大虾帮忙看看到底出了什么问题吧