我的电脑最近总是运行很慢，不知何解，望各位大虾指教！５５５５５５５５。以下为系统为最新扫描日志报告：
系统：
Micorsoft Windows XP
Professional
版本 2002
Service Pack 1
计算机：
Intel (R)
Celeron (R) CPU 1.70GHz
1.72 GHz
256 MB的内存
硬盘：８０Ｇ
HijackThis_zww汉化版扫描日志 V1.99.1
保存于 10:22:50, 日期 2005-7-10
操作系统： Windows XP SP1 (WinNT 5.01.2600)
浏览器： Internet Explorer v6.00 SP1 (6.00.2800.1106)
当前运行的进程：
C:WINDOWSSystem32smss.exe
C:WINDOWSsystem32winlogon.exe
C:WINDOWSsystem32services.exe
C:WINDOWSsystem32lsass.exe
C:WINDOWSsystem32svchost.exe
C:WINDOWSSystem32svchost.exe
C:WINDOWSsystem32spoolsv.exe
C:WINDOWSsystem32rundll32.exe
C:PROGRA~1SYMANT~1SYMANT~1DefWatch.exe
C:PROGRA~1YDTYDTMain.exe
C:PROGRA~13721assistse.exe
C:WINDOWSSystem32ctfmon.exe
C:PROGRA~1SYMANT~1SYMANT~1Rtvscan.exe
C:WINDOWSSystem32nvsvc32.exe
C:WINDOWSexplorer.exe
C:Program FilesInternet ExplorerIEXPLORE.EXE
C:Program FilesMSN Messengermsnmsgr.exe
C:Program FilesWinRARWinRAR.exe
C:DOCUME~1ldspc01LOCALS~1TempRar$EX00.088HijackThis1991汉化版HijackThis1991zww.exe
R3 - URLSearchHook: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:PROGRA~13721Assistasbar.dll
O2 - BHO: 搜索助手 - {04844102-FC0B-4f44-9E93-0C4293BB5E80} - C:PROGRA~1YDTYDT.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:Program FilesAdobeAcrobat 6.0ReaderActiveXAcroIEHelper.dll
O2 - BHO: IDDTInitObj Class - {15DDE989-CD45-4561-BF99-D22C0D5C2B74} - C:WINDOWSDOWNLO~1ddtinit.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - D:新建文件夹QQIEHelper.dll
O2 - BHO: KillObj Class - {66C28884-4E5D-494B-80C9-CAA27528FD6D} - C:WINDOWSDOWNLO~1ddtkillw.ocx
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:PROGRA~1FLASHGETjccatch.dll
O2 - BHO: AssistII - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:PROGRA~13721Assistasbar.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:WINDOWSdownlo~1CnsHook.dll
O3 - IE工具栏增项: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:PROGRA~1FLASHGETfgiebar.dll
O3 - IE工具栏增项: 金山快译(&K) - {6C3797D2-3FEF-4cd4-B654-D3AE55B4128C} - C:PROGRA~1KingsoftFASTAI~1IEBand.dll
O3 - IE工具栏增项: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:WINDOWSSystem32msdxm.ocx
O3 - IE工具栏增项: 新浪点点通 - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - C:WINDOWSDOWNLO~1DDTONG~1.DLL
O3 - IE工具栏增项: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:PROGRA~13721Assistasbar.dll
O4 - 启动项HKLM\Run: [NvCplDaemon] RUNDLL32.EXE C:WINDOWSSystem32NvCpl.dll,NvStartup
O4 - 启动项HKLM\Run: [helper.dll] C:WINDOWSsystem32rundll32.exe C:PROGRA~13721helper.dll,Rundll32
O4 - 启动项HKLM\Run: [YDTMain.exe] C:PROGRA~1YDTYDTMain.exe
O4 - 启动项HKLM\Run: [assistse] "C:PROGRA~13721assistse.exe"
O4 - 启动项HKLM\Run: [CnsMin] Rundll32.exe C:WINDOWSdownlo~1CnsMin.dll,Rundll32
O4 - 启动项HKLM\Run: [TkBellExe] rem "C:Program FilesCommon FilesRealUpdate_OBrealsched.exe" -osboot
O4 - 启动项HKCU\Run: [ctfmon.exe] C:WINDOWSSystem32ctfmon.exe
O8 - IE右键菜单中的新增项目: !搜一搜 - res://C:WINDOWSdownlo~1CnsMinEx.dll/1003
O8 - IE右键菜单中的新增项目: 使用Kugoo下载 - D:PROGRA~1KUGOO2KugooDownX.htm
O8 - IE右键菜单中的新增项目: 使用新浪下载助手下载 - C:WINDOWSDOWNLO~1sinadl.htm
O8 - IE右键菜单中的新增项目: 使用网际快车下载 - C:PROGRA~1FLASHGETjc_link.htm
O8 - IE右键菜单中的新增项目: 使用网际快车下载全部链接 - C:PROGRA~1FLASHGETjc_all.htm
O8 - IE右键菜单中的新增项目: 收藏此页到ViVi - http://vivi.sina.com.cn/collect/click.php?agent=ddt
O8 - IE右键菜单中的新增项目: 新浪搜索 - http://cha.sina.com.cn/ddt.html
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - D:新建文件夹AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - D:新建文件夹AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - D:新建文件夹SendMMS.htm
O9 - 浏览器额外的按钮: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - 浏览器额外的按钮: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - D:浩方对战平台GameClient.exe (file missing)
O9 - 浏览器额外的按钮: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - 浏览器额外的按钮: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
O9 - 浏览器额外的按钮: 上网助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://assistant.3721.com/index.htm?fb=Cns (file missing)
O9 - 浏览器额外的按钮: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:WINDOWSwebrelated.htm
O9 - 浏览器额外的“工具”菜单项: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:WINDOWSwebrelated.htm
O9 - 浏览器额外的按钮: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:新建文件夹QQ.EXE
O9 - 浏览器额外的“工具”菜单项: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:新建文件夹QQ.EXE
O9 - 浏览器额外的按钮: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:PROGRA~1FLASHGETflashget.exe
O9 - 浏览器额外的“工具”菜单项: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:PROGRA~1FLASHGETflashget.exe
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:新建文件夹QQIEHelper.dll
O9 - 浏览器额外的“工具”菜单项: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:新建文件夹QQIEHelper.dll
O9 - 浏览器额外的按钮: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - 浏览器额外的按钮: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - 浏览器额外的“工具”菜单项: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - 浏览器额外的按钮: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - 浏览器额外的“工具”菜单项: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS] 上网助手-地址栏搜索
O16 - DPF: Yahoo! Chat - http://us.chat1.yimg.com/us.yimg.com/i/chat/applet/c381/chat.cab
O16 - DPF: {15DDE989-CD45-4561-BF99-D22C0D5C2B74} (IDDTInitObj Class) - http://image2.sina.com.cn/home/ddtsource/ddt.cab
O16 - DPF: {2B323CD9-50E3-11D3-9466-00A0C9700498} (Yahoo! Audio Conferencing) - http://us.chat1.yimg.com/us.yimg.com/i/chat/applet/v45/yacscom.cab
O16 - DPF: {488A4255-3236-44B3-8F27-FA1AECAA8844} (CEditCtrl
Object) - https://img.alipay.com/download/aliedit.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {C8BD9ACB-F7EC-48E6-BB2F-DAADC6789E9A} (Kingsoft DUBA OnlineScan) - http://211.152.52.102/duba/antiscan/update/OCX/KAVClean.CAB
O20 - Winlogon Notify: NavLogon - C:WINDOWSSystem32NavLogon.dll
O23 - NT 服务: Ati HotKey Poller - Unknown owner - C:WINDOWSSystem32Ati2evxx.exe
O23 - NT 服务: ATI Smart - Unknown owner - C:WINDOWSsystem32ati2sgag.exe
O23 - NT 服务: DefWatch - Symantec Corporation - C:PROGRA~1SYMANT~1SYMANT~1DefWatch.exe
O23 - NT 服务: Symantec AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:PROGRA~1SYMANT~1SYMANT~1Rtvscan.exe
O23 - NT 服务: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:WINDOWSSystem32nvsvc32.exe
