重新启动到安全模式（进入安全模式的方法:重新启动电脑, 开机自动检测完后, 按[F8]键(可以一直按到启动菜单出来为止), 选择安全模式(Safe Mode)进入Windows。）
请关闭所有IE界面，重新使用HijackThis扫描一次，选中下面建议修复的项目，让HijackThis修复，修复前请允许HijackThis保留备份。（如果楼主知道是安全的可以不必勾选）
O2 - BHO: (no name) - {35980F6E-A137-4E50-953D-813BB8556899} - (no file)
O2 - BHO: URLMonitor Class - {3ED9FFDA-79DB-4B2D-99B7-16EA3C4A3A92} - C:\WINDOWS\system32\hap.dll
O2 - BHO: DownloadValue Class - {616D4040-5712-4F0F-BCF1-5C6420A99E14} - C:\WINDOWS\system32\winhtp.dll
O2 - BHO: IEBHOObj Class - {9A0527C1-4D5F-4e45-9D28-6257F75EDDB1} - C:\WINDOWS\System32\imuiepls.dll
O2 - BHO: IEHlprObj Class - {CE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\system32\qylhelper.dll
O3 - Toolbar: My &Web Search - {07B18EA9-A523-4961-B6BB-170DE4475CCA} - C:\Program Files\MyWebSearch\bar\1.bin\MWSBAR.DLL
O3 - Toolbar: Alexa - {3CEFF6CD-6F08-4E4D-BCCD-FF7415288C3B} - C:\WINDOWS\System32\SHDOCVW.DLL
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O8 - Extra context menu item: Alexa Web Search - http://client.alexa.com/holiday/script/actions/search.htm
O8 - Extra context menu item: &Search - http://bar.mywebsearch.com/menusearch.html?p=ZRxdm073XXCN
O9 - Extra button: Alexa - {9D74677A-E227-40fb-9511-F7E92EA4083A} - C:\WINDOWS\System32\SHDOCVW.DLL
O9 - Extra 'Tools' menuitem: Alexa Toolbar - {9D74677A-E227-40fb-9511-F7E92EA4083A} - C:\WINDOWS\System32\SHDOCVW.DLL
O9 - Extra button: 百万图库 - {6713E8D2-850A-101B-AFC0-4210102A8DA7} - http://www.26-3.com/p (file missing) (HKCU)
O9 - Extra button: 铃声图片下载 - {7713E8D2-850A-101B-AFC0-4210102A8DA7} - http://www.7169.com/sms/index.htm (file missing) (HKCU)
O16 - DPF: {15AD4789-CDB4-47E1-A9DA-992EE8E6BAD6} - http://static.windupdates.com/cab/CDTInc/ie/Bridge-c139.cab
O16 - DPF: {69A72A8A-84ED-4A75-8CE7-263DBEF3E5D3} (BrowserProxy4 Class) - http://www.72222.com/Alexa7.cab
O16 - DPF: {BC207F7D-3E63-4ACA-99B5-FB5F8428200C} - http://bar.baidu.com/update/IESearch.cab
O20 - AppInit_DLLs: C:\WINDOWS\system32\SoDAHK.DLL
O23 - Service: Kingsoft Personal Firewall Service - Unknown - (no file)
O23 - Service: Kingsoft Antivirus KWatch Service - Unknown - (no file)
然后打开我的电脑→再点工具→打开文件夹选项→查看→把隐藏受保护的系统文件（推荐）和隐藏已知文件类型的扩展名的勾去掉→再显示所有文件→找到以下文件并删除：（如果有的话）
C:\WINDOWS\system32\hap.dll
C:\WINDOWS\system32\winhtp.dll
C:\WINDOWS\System32\imuiepls.dll
C:\WINDOWS\system32\qylhelper.dll
C:\WINDOWS\System32\SHDOCVW.DLL
C:\WINDOWS\system32\SoDAHK.DLL
删除文件夹C:\Program Files\MyWebSearch
