建议用WINDOWS清理助手清理下（下载地址http://www.arswp.com/），有流氓软件。
以下是日志中有问题的部分（个人意见）：
注册表
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks]
({6167F471-EF2B-41DD-A5E5-C26ACDB5C096})(C:\Program Files\Internet Explorer\PLUGINS\WinSys8v.Sys) [File is missing]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
(vrvnet)(c:\NT_VRV\vrvnet.exe) [BeiXinYuan]
启动文件夹
[explorar]
(C:\Documents and Settings\All Users\「开始」菜单\程序\启动\explorar.exe --) [File is
missing])(N)(vrvnet)(c:\NT_VRV\vrvnet.exe) [BeiXinYuan]
服务（怪了，怎么服务项目都成双成对了，汗）
[vrv Virus Moniter Service / VrvVMS][Stopped/Auto Start]
()((File is missing))
[vrv Virus Moniter Service / VrvVMS][Stopped/Auto Start]
()((File is missing)
驱动程序
[iCafe Service / iCafe Service][Stopped/Manual Start]
(\??\C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\a.sys)(N/A)
[Net Manager / Net Manager][Stopped/Manual Start]
(\??\C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\b.sys)(N/A)
浏览器加载项（流氓软件重灾区）
[]
{1D3E6D2D-ED58-43D2-9D17-98F584B14D3B} (C:\WINDOWS\DDIEHelper.dll, N/A)
[]
{6167F471-EF2B-41DD-A5E5-C26ACDB5C096} (C:\Program Files\Internet
Explorer\PLUGINS\WinSys8v.Sys, N/A)
[百度搜霸]
{B580CF65-E151-49C3-B73F-70B13FCA8E86} (C:\WINDOWS\DOWNLO~1\BaiDuBar.dll, )
[百度搜霸]
{B580CF65-E151-49C3-B73F-70B13FCA8E86} (C:\WINDOWS\DOWNLO~1\BaiDuBar.dll, )
[]
{1D3E6D2D-ED58-43D2-9D17-98F584B14D3B} (C:\WINDOWS\DDIEHelper.dll, N/A)
[]
{6167F471-EF2B-41DD-A5E5-C26ACDB5C096} (C:\Program Files\Internet
Explorer\PLUGINS\WinSys8v.Sys, N/A)
[百度搜霸]
{B580CF65-E151-49C3-B73F-70B13FCA8E86} (C:\WINDOWS\DOWNLO~1\BaiDuBar.dll, )
[百度Flash搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/FLASHSEARCH.HTM, N/A)
[百度mp3搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUMP3.HTM, N/A)
[百度信息快递搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUIE.HTM, N/A)
[百度图片搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUIMG.HTM, N/A)
[百度搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUSEARCH.HTM, N/A)
[百度新闻搜索]
(res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUNEWS.HTM, N/A)
