注册表里把默认主页改回来
HKLM\Software\Microsoft\Inter Explorer\Main\StartPage
HKCU\Software\Microsoft\Inter Explorer\Main\StartPage
HKLM\Software\Microsoft\Inter Explorer\Main\Default_Page_URL
如果主页不可更改 则将注册表如下内容键值dword值改为0
HKLM\Software\Software\Policies\Microsoft\Inter Explorer\Control Pannel "settings"=dword:1
HKCU\Software\Software\Policies\Microsofr\Inter Explorer\Control Pannel "Links"=dword:1
HKLM\Software\Software\Policies\Microsoft\Inter Explorer\Control Pannel "SecAddSites"=dword:1