上网用迅雷下载东西和浏览网页时老掉.掉线后宽带连接图标不变色只是数据无变化,不能进行网络连接等活动,而且不能正常关机.等机子断电几分钟后开机子才能继续上网.重新装系统还是不管用.而且杀毒软件防火墙(瑞星正版最新版本)检测不出病毒和木马.  跪求各位大虾帮忙解决.附Sreng日志

[用户系统信息]Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; TencentTraveler )

步骤：

1、下载WINDOWS清理助手，地址http://www.arswp.com/

2、拔网线

3、删下列注册表项目：
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvc.exe]
    <IFEO[kavsvc.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVsvcUI.exe]
    <IFEO[KAVsvcUI.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVFW.EXE.exe]
    <IFEO[KVFW.EXE.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVMonXP.exe]
    <IFEO[KVMonXP.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ravtimer.exe]
    <IFEO[ravtimer.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rising.exe]
    <IFEO[rising.exe]><C:\WINDOWS\system32\svchost.exe>  [(Verified)Microsoft Windows Publisher]

4、删下列驱动程序：
[BdGuard / BdGuard][Running/Boot Start]
  <\SystemRoot\system32\drivers\BDGuard.SYS><>
[PciHardDisk / PciHardDisk][Stopped/Manual Start]
  <\??\C:\WINDOWS\system32\fat32.sys><N/A>

5、删除下列浏览器加载项：
[BandIE Class]
  {77FEF28E-EB96-44FF-B511-3185DEA48697} <C:\PROGRA~1\baidu\bar\baidubar.dll, Baidu.com, Inc.>
[Thunder]
  {BE830FD4-E393-417F-9F4B-CC70ABB3384C} <C:\WINDOWS\system32\IETool.dll, N/A>
[百度超级搜霸]
  {B580CF65-E151-49C3-B73F-70B13FCA8E86} <C:\PROGRA~1\baidu\bar\baidubar.dll, Baidu.com, Inc.>
[]
  {471B15AD-7A9C-491D-9C19-4E15B12DCE00} <C:\Program Files\Internet Explorer\PLUGINS\NvSys_55.Sys, N/A>

6、重启电脑删除以下文件：
C:\Program Files\Internet Explorer\PLUGINS\NvSys_55.Sys
:\PROGRA~1\baidu\bar\baidubar.dll
C:\WINDOWS\system32\IETool.dll
C:\WINDOWS\system32\fat32.sys
C:\WINDOWS\system32\drivers\BDGuard.SYS

7、运行WINDOWS清理助手扫描下，干掉流氓剩余

8、安全模式下全盘杀毒。